Showing posts with label pinhole. Show all posts
Showing posts with label pinhole. Show all posts

Wednesday, July 20, 2016

Recent Pinhole-Related Videos

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This week I posted a two-part You Tube video that covers the complete process of Harman Direct Positive Paper in pinhole cameras, specifically using my set of nine film-canister pinhole cameras. The videos cover everything a person would need, from cutting the paper to size, loading the cameras, equipment needed in the field, aiming the cameras, determining exposure via a light meter, unloading the prints to a film developing tank and the entire method of rotary processing these small prints using a metal 35mm day tank.

I felt it necessary to make this two-part video because, even though many of these individual steps have been covered in previous videos, having them all in one production might make more sense to some people. My desire is to encourage more people to discover for themselves the simple joy it is of working with this remarkable medium, that yields exquisite little gem-like prints from a humble pinhole chamber and paper processed in a simple 3-part procedure.

We do live in a remarkable era, photographically speaking, because we have at our avail the most contemporary of digital imaging systems while also enjoying a resurgence of interest in historic photographic processes, along with unique products such as this direct positive paper.

Personally, I've been doing less digital photography in my free time, instead putting more time into various video projects, not only photographically related but also a series involving typewriters as the theme. Yet at the same time, I've begun to slowly shoot more black and white film, home processed and scanned, along with these direct positive pinhole prints. It's a satisfying mix of technologies, working within the medium of video while at the same time working with gelatin silver imagery, the best of the old and the new. Too, video and still photography work to tell stories and engage the viewer in differing ways; so I see these as complementary activities, rather than competitors.

This last week I finished a roll of Ilford HP5 Plus in my Minox GT-E, while I'm just now starting a roll of Ilford FP4 Plus in a Yashica T4 Super. I'm enjoying being able to put these various cameras from my collection through their paces, enjoying each of their respective unique attributes as film cameras, while also stretching my film-processing legs a bit more.

Here are the links to the two-part video series about the pinhole camera process. Enjoy.

Part One:


Part Two:

Tuesday, July 5, 2016

Returning to the Scene of the Crime

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Slow and methodically I've been using up this latest round of Harman Direct Positive prints in my set of nine film-canister pinhole cameras. Every time I do so, it's been in quantities of three, enough to develop in one batch in the 35mm steel development tank. Three seems a good number; a triptych, in quantity if not in actual intention.

To do this, to make the creating of these little gem-like prints part of one's private life, means that there has to be a sense of balance between the desire to chuck it all, ignore family, friends and obligations for the obsessive pursuit of one's Arte, and maintaining peace in one's life and relationships. In the past, I've been much more apt to obsess over the pinhole photography process, each outing a mission dedicated to the One Big Objective of returning with some trophy-like images - or don't come home at all.

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These days, I'm a bit more laid back. For one, I've eased back on my expectations, happy with one or two good prints, even if they are small enough to fit in the palm of one's hand. Also, the gear is small enough to easily carry, even with a modest tripod. I'll carry a small day pack, with tripod in hand, metal camera mounting plate attached. Once I find a promising scene I'll get the tripod set, meter the scene and then pull out of its storage box one of these little cameras. The typical scene might only take all of a minute to set up, meter and expose. Quick, and expeditious. Then, I can get back to the business of whatever the day requires. No day-long pinhole expeditions, no choosing between creativity and life's responsibilities. Just fit it into those interstitial moments that have so much to do with whether a day has been successful and rewarding, or not.

Honestly, if I could be satisfied with a short, handheld tripod and the restrictive compositions it might limit me to, this whole process would be that much less obtrusive.

Last week, I made a visit to the Green Jeans Market in Albuquerque, a cluster of cafes and shops made from metal shipping containers, situated in a bit of land adjacent to Interstate 40, and made a few pinhole exposures; today, I returned to the scene of the crime, prints in hand along with a digital camera, fountain pen and notepad, to document these thoughts, while having a bite of lunch.

Now, since constant improvement (or, at least, spurious innovation) has been a continual part of my photographic journey, I've been thinking about the possibility of a combination pinhole camera and developing tank. Since I have several spare 35mm steel processing tanks, the thought came to me that, were I to drill a hole in the side of one of these tanks, then outfit it with some sort of liquid-proof pinhole/shutter mechanism, that I could expose and process a single, larger Harman Direct Positive print in said tank. I can imagine carrying a little box of small containers of processing chemicals, along with my little rotary base.

I can imagine a scenario like this: I visit some photogenic locale, such as this Green Jeans Market area, and expose one image. Then I retire to the cool comfort of Santa Fe Brewery's upstairs seating area, burger and brew at hand, and proceed to process said pinhole print at my table, between mouthfuls of greasy burger, washed down by a cool beverage that might resemble, were it not for the carbonation's bubbles, a glass of expired developer; best not to get the two confused. The result being - what? - a wet print that still requires a lengthy archival wash, then taped to a sheet of glass to dry for an hour or two in a drying cabinet?

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This is where the needle scratches the record, where the whole idea falls flat on its face and I all too easily express my frustration that Harman/Ilford refuses to make an RC paper version of this wonderful positive photographic medium. For with a resin-coated, direct positive paper, the possibility remains of having finished, dry, one-of-a-kind positive pinhole prints in-hand at said brewery table, after a brief water rinse, squeegee and air dry, again between mouthfuls of greasy burger, washed down by cold brew. Which opens up the possibility of being able to create portraits on-location, reminiscent of those street portraitists of old, who would prowl the dark nightclubs of the 20th century in search of couples who wished to document their nocturnal encounters.

For now, the dream remains but a dream, and I have to be satisfied to return home to process these prints to completion. Yet I continue to dream these dreams, incessantly, never giving up hope for the things that could be, for that is what the joy in life is made of.

Monday, June 20, 2016

Words and Pictures

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Words and pictures. Images both literary and visual. These have been considered so similar that the verbiage used to describe them seem to be synonymous. Word pictures. A picture is worth a thousand words. Terms almost interchangeable. It should come as no surprise then that the devices we've made to construct words and images together seem to operate so similarly. Today, digital images and text files seem virtually the same, mere data, slung around networks of optic fibers and copper wires.

Looking backwards is often required to see forward. So it is when combining gelatin silver paper prints and typewriters; or, gelatin silver prints of typewriters, two technologies that seem so like-minded.

A few years ago, when I was delving deep into the world of paper negative photography - employing silver paper as a form of in-camera, black & white "film" - I began looking for alternative methods of displaying these as positive images. Two obvious ways were contact printing them, in the darkroom, onto other sheets of silver paper; or scanning the negatives to produce digital files, to be inverted later via software into positive images. Both methods have their benefits. The first produces a physical print, while the second is intrinsically software-based.

But then I came up with a third method, similar to digital scanning, but employing a handheld digital camera; placing the paper negative into some setting or scene, perhaps related to the original image, and often outdoors; photographing the paper negative within the larger scenic context; then inverting the tones of the image afterwards, to produce a positive monochrome image set inside an otherworldly appearing scene, a shifted color palette of negative tones, a reversed world where the real is imaginary and the imaginary real.

Since that time, I've been working more regularly with Harman Direct Positive paper, that produces a positive image requiring no tonal reversal afterward. But the idea of digitizing these prints, by photographing them in some larger context using a handheld digital camera, persists to this day. So it was that, after making this small study of my Hermes 3000 "Nekkid-Riter" chopped typewriter, using small squares of the Harman paper in my film canister pinhole cameras, it seemed obvious that sharing these prints online might be more interesting done this way than by merely scanning.

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The process I use to make these prints, now that I've worked toward refining it, is so simple as to almost be silly. Give the paper a brief pre-flash of even light in the darkroom, then load into the film canisters. Rate the paper at an exposure index of 10, and the pinhole cameras at F/128. Meter the scene, make the exposure based on the metered reading. Load paper into a steel film developing tank, minus the reels, using loops of drafting tape on the backsides. Three such prints can easily be processed simultaneously. Mix Ilford MG paper developer, diluted at 1 + 15, to a volume of 100mL. Use continuous rotary processing, using the film tank on its side, for 3 minutes. Stop, fix and rinse as normal. Dry for an hour or two on a sheet of glass, taped down on the edges with more drafting tape. Done. Beautiful, individually unique gelatin silver positive prints.

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I might say that the typewriters themselves, though each are as unique as the Harman positive prints, are a bit more complex. They aren't being manufactured, and spare parts are only to be found from other, donor, machines. Platen rollers can be resurfaced, and new ribbons are easily available, however. But the machines themselves are to be found online, at local thrift stores, Craigslist ads or estate sales. They almost always need some kind of service in order to be functional; at the very least, a thorough cleaning, degreasing and relubrication, then often some adjustments have to be made. Lots of hands-on fiddling, but also very satisfying when the typewriter collector/user also becomes a typewriter technician.

Typewriters also have a functional use, which is to mechanically print letters neatly onto paper. They're like film cameras in this regard, made to do but one thing, to lay down images of the literary kind. Which brings us back to where we started, with words and pictures.

Tuesday, June 14, 2016

Film Canister Pinhole Camera Project Update



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Three new prints from the film canister pinhole camera project

It's been a few weeks since I began delving into this film canister pinhole camera project, and along the way I've made a few improvements and changes, which I'll share with you today. As you might recall, I was having issues with the black tape used as the shutter on these small cameras, because being adhesive, as you peel off the tape it's very easy to move the camera, resulting in a blurry image. Also, because the canisters are made of soft plastic, they shouldn't be gripped too tightly, which might cause their caps to pop off and fog the paper inside.

So I had to find an alternative, more mechanical, form of a shutter device. I had some ideas, but was also helped by readers of this blog and viewers of my You Tube video. I ended up making plastic sleeves that fit snugly around the periphery of the cameras, that slide up and down to control the exposure. These were made from the black plastic dark slide sheets that get ejected from the Fujifilm Instax Wide instant film cassettes, which I've been saving for a purpose such as this.

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Fujfilm Instax Wide empty cassette and dark slide

I trimmed the edges of these dark slides so they were square, then into 18mm wide strips, that were then taped to the canisters using gaffers tape. They weren't quite long enough to extend all the way around the periphery of each canister, thus I used a thin piece of gaffers tape mounted backwards on the middle section of each piece of gaffers tape to prevent the tape from binding on the body of the film canister. Because the canisters are slightly tapered, the shutters fit snugly in place, and can be easily raised up into the exposed position without moving the canister on its magnetic mount. Once the exposure is complete they push back down into the closed position easily.

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Shutter in closed position

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Shutter in open position

I also made a change to my exposure method. I usually set the meter to the Harman Direct Positive paper's ISO (I use a value of 8), then reference the exposure time recommended by the meter opposite f/128 and apply a correction factor to account for the difference between the cameras' focal ratio and the f/128 metered value. For these cameras, whose focal ratios were around f/120, that correction factor was about 0.94. What I did this week was to artificially rate the paper's ISO at 10, instead of 8, and directly reference the exposure time for f/128, without applying any correction factor. This enables me to arrive at the correct exposure times without having to resort to the use of a calculator, which streamlines the process when out in the field.

Another problem I'd been having were intermittent scratches or gouges in the prints, revealed as small white marks, which turned out to be caused by the sharp edges of the radial struts of the steel film reels. As you might recall, I process these small prints, rotary-style, using a steel 35mm film developing tank employed as a makeshift rotary drum. I'd place the prints in the gap between the reels and the inside surface of the tank, emulsion side facing inward. What I did this week was to entirely remove the reels and instead apply a small loop of drafting tape on the reverse side of each print, to assist in adhering them to the inside surface of the tank while processing; the tape is sticky enough so the prints don't come loose while processing, yet are easily removed afterwards without harming the paper or leaving residue.

As you might recall from previous videos, I process the Harman Direct Positive paper for three minutes, rotary style, using Ilford Multigrade or Universal paper developer diluted 1 + 15, for a volume of 100mL.

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Two of the prints, right after the tank has been opened post-processing

Because these prints are so small, they don't stay immersed in the rinse bath, since they have a larger edge length-to-surface area ratio. Therefore I made these weighted cable-tie loops, within which each print is curled, taco-style. The prints are bent along their natural curve axis. They stay nicely immersed in my rinse tank; which I take outdoors and, using a garden hose under my tree, water my landscaping instead of wasting the rinse water down the drain - I do live in an arid climate, where fresh drinking water is precious.

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Paper rinsing clips in the rinse tank

I use the same drafting tape mentioned earlier to mount the prints on a sheet of glass, where they dry inside my film drying cabinet and end up very flat; while afterwards the tape is easily removed without damage to the emulsion.

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Prints drying on a sheet of glass in the drying cabinet

I tested this new methodology with three of the canister cameras, the results which you can see in the top photo. Going forward, this is going to be a very fun kit to employ in creating these miniature photographic gems.

Tuesday, May 31, 2016

Film Canister Pinhole Camera Project

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An exquisite little jewel of a print that fits in the palm of your hand

Last week, after a long, long hiatus from much of any pinhole or gelatin silver photographic work, I embarked, in a sudden fit of inspiration, on a mad rush to build a set of nine pinhole cameras from black 35mm film canisters. Why the sudden inspiration, after all this time of little creative photographic output? Hmm. Best not to question the Muse, but rather to strike while the iron's hot; there'll be plenty of time, down the road, to ponder the whys.

My intention was for this set of small cameras to use Harman's Direct Positive paper, cut down to 1.75" square, which after a standard processing in black & white chemistry produces one-of-a-kind, fiber paper prints. Think "wet Polaroids" and you get the general idea.

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Camera number one, with black tape shutter removed. The red dot on the cap indicates the direction of the pinhole.

My previous experience with this paper in pinhole cameras has shown that it doesn't tolerate lengthy exposures in cameras sporting hefty focal-ratios, since I rate its "exposure index" (the fancy term for the paper's "film ISO") at a value of 8 - much, much slower than what one might expect in a modern digital camera, for example. Given the paper's slow "speed" and the minute apertures found in bigger pinhole cameras (whose focal ratios often extend in the 100s), a smaller-sized camera, with a shorter focal length, would have a more reasonable f-number, yielding exposures short enough to be practical. In the case of these cameras, their f-numbers come in at around f/120 or so. I say "or so" because all nine of the pinholes were made by hand, and thus might not be exactly identical; but they're close enough.

I made the pinhole into 2-mil (i.e. 0.002" thick; NOT 2 millimeters) sheet brass, using a sewing needle and 600-grit emery paper. I've made a video to demonstrate my pinhole making technique, linked below.


Making Pinhole Camera Apertures

After doing a fairly good job at making the cameras themselves, and their little storage box, I had to decide how to use them with a tripod. After over-thinking it with ideas of pipe clamps and whatnot, I finally hit on the simply elegant idea of using the power of magnets, like Jessie Pinkman in the AMC series "Breaking Bad." Yea! Magnets, b*tch! (If you don't understand the reference, Google is your friend.) I installed magnets on the caps of each camera, which mate with a metal plate, screwed to a wooden base with tripod fitting underneath. I can place multiple cameras atop the metal plate, and the attractive force is strong enough to keep the cameras secure in almost any position.

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Camera number one atop the magnetic tripod head

This morning, I took these little cameras out into my front and back yards, to make a series of test images. My standard metering and exposure technique is to use a Gossen Luna Pro F meter, set to the paper's exposure index of 8, using either reflective or incident metering (I used both during today's tests); reference the exposure time recommended for f/128, then apply the correction factor for the cameras' focal ratio. Since these cameras were about f/120, and the correction factor was about 0.9, I ended up just using the f/128 reading itself for about half of these shots; close enough for the tolerances of the process. This also represents a convenience factor, since I can use the meter reading directly without having to pull out a calculator to do the conversion.

All the cameras worked as expected, no light leaks noted, and the exposures were all pretty good; there was one image, of irises whose leaves were in bright sun but background was heavily shaded, where I metered the leaves themselves, and ended up with them being around medium-gray in tone, with the background almost completely black. Again, as one would expect; for a better image I should have added a +1 compensation to the exposure to brighten those leaves. I also did not do any pre-flashing of these prints, as I normally do with Harman Direct Positive paper (and also paper negatives), as I wanted to see the images straight away as the cameras record them, without any additional compensation.

Another image was taken in shade, with an exposure time of 55 seconds, the longest of the session, and it came out fine, with a good tonal range (as one would expect of this paper in shaded light), further proof as to the accuracy of my pinhole measuring technique.

In actual use, I keep the cameras in the box with their lids facing downward, the bottoms of each canister having a clearly visible number label affixed via double-sided tape. I start with camera #9. After its exposure, it goes back in the box cap-side up, so its number is no longer visible; so then, the highest numbered camera is 8, telling me that I have 8 exposures left. Simple but effective, and keeping me from getting confused, while out in the field.

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The set of nine pinhole cameras in their carrying box

For shutters on the cameras, I've gone with the simple but elegant method of using black electrical tape. Best not to over-engineer what should be a very simple camera.

I've made another video documenting this project.


Film Canister Pinhole Camera Project

As I indicate at the end of that video, my desire is for this to be the start of some "serious" pinhole work, and not merely another camera-building project. I've built countless pinhole cameras over the last few decades, but much less have I seriously employed them in the service of some long-term documentary project. I hope this marks the start of a long stretch of productive pinhole creativity.

For those of you technically-minded, the pinholes were about 0.2mm in diameter, with the nominal focal length about 27mm (the curved film plane in the canisters ranges from 25mm at the center to 30mm near the edges). I expose the Harman paper using an exposure index of 8, then process them in a makeshift rotary drum (a standard metal 35mm tank laid on its side) for 3 minutes in a 100mL volume of Ilford Multigrade paper developer at a concentration of 1 + 15, followed by standard stop bath, fixing and rinsing.

Sunday, February 28, 2016

Pinhole Photography at Kiwanis Overlook

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One of my favorite destinations, when I feel like an outdoor hike but don't want to drive too far from home, is the Elena Gallegos Open Space area, part of the City of Albuquerque's Parks & Recreation program. The Elena Gallegos was once part of a Spanish land grant, dating as far back as 1694, that encompassed much of what would later be the north and east portions of the Albuquerque metropolitan area. The current open space area is along the foothills of the Sandia mountains, and includes numerous hiking trails, along with picnic areas that can be reserved for private parties.

One of my favorite parts of the Elena Gallegos is the Kiwanis Overlook, a wooden structure, built by the Kiwanis organization, that serves as an observation area for a small wetlands pond that is a favored destination for birders.

There are several trails one can hike to arrive at the Kiwanis Overlook, the longer trail starting from the eastern-most parking area and winding its way east and north, across a natural arroyo, while a shorter hike starts from a nearby parking lot on the northwest corner of the park.

I've visited this area repeatedly over the years, for the purposes of both hiking and photography. Although I'm not a birder, I've noted in the middle of the day, when the light is sufficient for pinhole photography, the absence of birds in the wetlands pond. Too, the visitation hours of the area, as managed by the city, precludes bird observation in the early morning and late evening, unless special arrangements are made ahead of time. Still, despite the apparent lack of wildlife, daytime visits are a special occasion for me, as the open air and scenic vistas are both calming and inspirational.

The observation blind structure itself is constructed with numerous window-like openings, revealing various views of the wetlands area beyond, each an ideal vantage point from which to aim a camera. After frequent return trips to the area, I began to notice how these window openings themselves began to resemble picture frames, even being constructed of wood, serving to frame a specific vista beyond, each one unique in aspect ratio and view, as if they were but a collage of paintings hung on some wall.

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And so I began a series of photographic studies involving the wooden structure itself, its observation viewing ports and the vistas beyond. At the right time of day, sufficient light is available to render visible the textured details of the wooden planks, even with the limited sensitivity of paper negatives employed in pinhole cameras.

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It requires a meditative-like concentration to successfully employ these box cameras as a means for creating landscape images, and thus the presence of other visitors to the area can often be a hindrance. It is for this reason that I prefer to plan my visits for the week days, when the majority of people might be busily employed elsewhere. There's also the further advantage that the parking fee on week days is only a dollar, compared to the two dollar weekend fee.

Over the years I have employed both paper negatives and Harman's Direct Positive paper, in both pinhole and glass-lensed large format cameras, with which to study this area, and find myself returning yet again, in search of something I know not what, except that this wildlife observation area is a perfect metaphor for the act of seeing that is uniquely photographic.

Tuesday, February 9, 2016

The Tangible Reality of Print in Hand

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Having recently worked to refine my methodology for exposing and processing Harman Direct Positive paper, I've begun to create more pinhole camera-based, in-camera prints. This is after a long hiatus of a number of years, where the volume of my pinhole work was minuscule.

Part of the reason for this dry spell was that, at the time, I'd been working almost exclusively for over a decade with paper negatives - which don't directly produce a finished print - instead requiring either a contact print be made in my darkroom (a laborious process made impractical in the colder months of the year), or scanned to create positive digital image files.

It was this second process method, of scanning paper negatives, that I had mostly used, resulting in files to be posted and shared online, but still absent any physical print in hand.

Eventually, I left pinhole behind almost entirely and instead concentrated my creative energy mostly on digital camera-produced imagery; creatively satisfying but absent a real silver print in hand.

My initial experiments, a few years ago, using Harman positive paper in pinhole cameras involved larger sized formats, with longer focal lengths and the resulting larger focal ratios, which resulted in extended exposure times, even in bright sunlight, of well over a minute. For this reason I balked at continuing to use this paper in pinhole cameras, and ended up using it mainly with faster, lens-based cameras.

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However, results from recent experiments with exposing small pieces of Harman paper in pinhole cameras with smaller focal ratios has suggested that successful direct in-camera pinhole prints can be easily made using reasonably short exposure times. Most notably was having made test exposures in the little 2"-by-2" brass pinhole plate camera. Its F/140 aperture was fast enough to warrant reasonably short exposure times in bright sun, inciting me into changing my mind about direct positive pinhole print work.

Now I've begun working more with a 4"-by-5" wooden pinhole box camera, with a focal ratio of F/285 - small enough of an aperture to render reasonably sharp prints while keeping the exposure times well under a minute.

Despite requiring a tripod mount and lengthy timed exposures, the focus-free nature of pinhole photography implies that alternative composing methods can by employed, enabling accurate framing while streamlining the image-making process, as compared to the more traditional large-format process, where the photographer tucks in under a dark-cloth, squinting into a view-screen with magnifying loupe in hand. The "viewing dots" on my pinhole box camera provide an accurate and convenient method of composing a scene, as an alternative to either the cumbersome large format methods or the questionable accuracy of mere point-and-guess aiming with box cameras absent any viewing system whatsoever.

In the previous article I discussed the merits of employing extremely wide angles of view with pinhole cameras using orthochromatic media like Harman Direct Positive paper, as a strategy for creating landscape images with a reasonably dark sky tone. While this 4"-by-5" camera has not nearly as wide of an angle of view as that cardboard box camera discussed previously, I'm still able to get skies rendered with a reasonable degree of tonal detail, while the exposure differences from center-to-edge are much less severe in light fall-off.

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Holding these little prints in hand, they seem to be much sharper than their pinhole origins might otherwise suggest. One doesn't appreciate this as much with Internet-posted digital scans, however, since they don't hold up well to the closer scrutiny afforded by a larger computer monitor.

This reminds me that one of the greatest thing about creating these in-camera prints is their physical presence; the paper's thickness, texture and surface sheen; how one has to hold such a print close to oneself, an intimate interaction, an experience that remains lacking when merely simulated on a digital viewing screen.

So while IBM's Deep Blue A.I. might be able to best the world's Chess or Go champions, there's still nothing like holding a silver print in hand, an entirely non-Internet-based, physical experience.