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Old 02-09-2016   #1
JoeV
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Post Yer Pinholes!

Let's see some pinhole pictures, any format, any camera, any medium. Include a bit of technical info if you want.

~Joe

-------------------------------------------------------------------------------

I'll start. 4"-by-5" wooden pinhole box, F285, Harman Direct Positive paper.

Gate_F285_Pinhole001a by Joe Van Cleave, on Flickr
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Old 02-09-2016   #2
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^My curiosity wants me to ask if you preflashed this sheet of film ? Peter
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Old 02-09-2016   #3
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5x4 Wooden Pinhole Camera my dad made for me when I was 20 (11 Years ago).

Pinhole 2 by Gary Harding, on Flickr
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Old 02-09-2016   #4
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Quote:
Originally Posted by Moto-Uno View Post
^My curiosity wants me to ask if you preflashed this sheet of film ? Peter
Yes, pre-flashed Harman Direct Positive paper.

~Joe
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Old 02-09-2016   #5
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Banner (Diana) body w/out lens:



"scanned" using waxed paper on a window and a digital P+S:



https://www.flickr.com/photos/stever...57605816668015
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Old 02-09-2016   #6
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Harman Direct Positive in 4-by-5, F/285 wooden box camera. The subject is the now defunct Pop-N-Taco in Albuquerque.

~Joe

Pop_N_Taco_F285_Pinhole002a by Joe Van Cleave, on Flickr
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Old 02-09-2016   #7
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Quote:
Originally Posted by JoeV View Post
Yes, pre-flashed Harman Direct Positive paper.

~Joe
I'm very interested trying Direct Positive paper, how quickly after pre-flashing do you need to shoot and how soon after shooting do you need to develop?
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Old 02-09-2016   #9
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From the first pinhole camera I made myself. A 4x5 with internal, cable release operated guillotine shutter. Approx 120mm focal length, 0.500mm pinhole (since reduced to 0.400mm)

Shanghai 100 ASA sheet film

Double exposure:

Trees double exposure by Eirik Russell Roberts, on Flickr

The camera:


DIY 4x5 Pinhole camera #5 by Eirik Russell Roberts, on Flickr
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Old 02-10-2016   #10
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Eirik, that's a beautiful camera, well done. I like the external VF atop the box.

~Joe
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Old 02-10-2016   #11
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Quote:
Originally Posted by VTHokiEE View Post
I'm very interested trying Direct Positive paper, how quickly after pre-flashing do you need to shoot and how soon after shooting do you need to develop?
I haven't done extensive tests on how the pre-flash fades over time. I do so while loading my film holders, just before going out to photograph.

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Old 02-10-2016   #12
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Something more modern: Skink pinhole lens on M-Monochrom.





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Old 02-15-2016   #13
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I made a day trip out to the Very Large Array radio telescope in western New Mexico, with a 4"-by-5" pinhole box camera and film holders loaded with Harman Direct Positive paper.

I rated the paper at ISO 8. These exposures ended up being 30 seconds each, for a F/285 pinhole. Development was for 3 minutes in Ilford MG developer diluted 1+10 in a rotary drum.

~Joe

VLA004A by Joe Van Cleave, on Flickr


VLA001A by Joe Van Cleave, on Flickr

VLA003A by Joe Van Cleave, on Flickr
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Old 02-16-2016   #14
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Quote:
Originally Posted by JoeV View Post
Eirik, that's a beautiful camera, well done. I like the external VF atop the box.

~Joe
Thank you Joe.

I have since removed the Sinar back, repurposed for another project. Made up a simple DDS holder instead. Main disadvantage is of course I can no longer use a multiformat 120 rollfilm back on the camera. But, hey I have 6x17, 6x24 and 6x6 pinhole cameras as well, so no real loss.

These were taken with the simplified camera:


On the beach by Eirik Russell Roberts, on Flickr


Mildy dead oak by Eirik Russell Roberts, on Flickr

The camera now looks like this:


DIY 4x5 Pinhole v.2 by Eirik Russell Roberts, on Flickr
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Old 02-16-2016   #15
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Polaroid Pinhole by John Carter, on Flickr

DIY pinhole by John Carter, on Flickr

Made with this:

Polaroid Pinhole by John Carter, on Flickr
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Old 02-21-2016   #16
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Same DIY 4x5 camera, with 120 roll film back, this is 6x9, Acros in Caffenol-C-M(RS)


Where are the children? by Eirik Russell Roberts, on Flickr
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Holga Pinhole 120 WPC
Old 03-05-2016   #17
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Holga Pinhole 120 WPC

During the last two years, since I went back to film photography, I was attracted by Pinholes but didn'd try it until a couple of months ago. I went in the classic Roman Forum with my new Holga 120 WPC and a couple of rolls. I made immediately some mistakes during the first roll: i.e. not wanted double exposures (as I didn't advanced the film)... or let the cap on and so on....
Well, for the second roll I was fiercely committed to not make mistakes... and everything went good.
I was impressed by the images and (seems) I got the right exposure and development time of a not so easy Adox CMS 20 film....

The results are in my Film Blog

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Old 03-05-2016   #18
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Quote:
Originally Posted by johnwolf View Post
Something more modern: Skink pinhole lens on M-Monochrom.





Quote:
Originally Posted by Ezzie View Post
Thank you Joe.

I have since removed the Sinar back, repurposed for another project. Made up a simple DDS holder instead. Main disadvantage is of course I can no longer use a multiformat 120 rollfilm back on the camera. But, hey I have 6x17, 6x24 and 6x6 pinhole cameras as well, so no real loss.

These were taken with the simplified camera:


On the beach by Eirik Russell Roberts, on Flickr


Mildy dead oak by Eirik Russell Roberts, on Flickr

The camera now looks like this:


DIY 4x5 Pinhole v.2 by Eirik Russell Roberts, on Flickr
Quote:
Originally Posted by Ezzie View Post
Same DIY 4x5 camera, with 120 roll film back, this is 6x9, Acros in Caffenol-C-M(RS)


Where are the children? by Eirik Russell Roberts, on Flickr
Like very much these images!
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Old 03-13-2016   #19
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Thanks to OP for the thread and great examples. I have to buy this paper and build 4x5 pinhole.

This one is from ebay seller of pinholes. M-mount cap, with laser drilled 0.2mm pinhole.
On M4-2 with HP5+ as 400, 1/2 second.
8x10 lith print on old Agfa Brovira FB Paper. Arista Lith developer.

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Old 03-13-2016   #20
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Very impressed by some of the work here, I obviously have a lot to learn.

This the "special" moont on the M2



And just to push myself to being silly on Technical Pan !!
Delagi 8 Developer 15mins @68F



And for the curious from the same roll Tech Pan with a lens incorporating glass:

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Old 04-30-2016   #21
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I bought a cheap pinhole body cap which the seller neither stated what size it was, nor included any documentation with it. It's sold as being "dustless" (though for the life of me I can't see how much dust would get through that hole), thus there is a plastic covering on the inside of the hole. When you look through it, is seems there is a lot of junk in the hole too (probably stuck to the "dustless" plastic covering). It may have scattered the light a bit, but then maybe the distance is wrong for the camera.

Nikon N80 on Kodak Ultramax 400 at 1/4 sec--f128 (lowest f reading my Gossen Luna Pro F would go to) I bracketed exposures, but the 1/4 sec reading was right on.


WWPD Shed by P F McFarland, on Flickr

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Old 05-02-2016   #22
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Cannon Pinhole Image by Narsuitus, on Flickr


4/24/2016
Partly sunny day
ISO 400
Tripod mounted Olympus E-P1 micro 4/3 digital camera
Wanderlust pinhole body cap
11mm sensor to pinhole distance
0.14mm pinhole diameter (f/180 effective f/stop)
1/2 second shutter speed



Olympus Pinhole Camera by Narsuitus, on Flickr
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Old 05-08-2016   #23
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My WPPD contribution

My contribution

I find the irony of children clambering over these naval cannon turrets quite pleasing. The naval museum is next door (same building) to the national photography museum. The latter hosting the children's photography day, coinciding with WPPD. My kids got to take pinhole pictures, develop negs and make contact prints. They had a ball of a time. So did I.


Peaceful cannons by Eirik Russell Roberts, on Flickr

Shot with this DIY effort, a 6x24 curved plane pinhole camera. Due to constraints with regards to the depth of the case, the curve is not semicircular, rather more elliptical, meaning that there is some vignetting towards the edges, but I rather think a pinhole image should have that sort of look anyhow.

The camera

6x24 Pinhole by Eirik Russell Roberts, on Flickr

Build info: http://www.filmwasters.com/forum/index.php?topic=6870
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Old 05-09-2016   #24
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Question for Joe V;
How do you make your pinholes? I'm blown away by the detail in the VLA pictures. While I know that for many pinhole users detail and resolution are not priority concerns I think it would be nice to maximize that quality in a 4X5 format. At least for myself I'd like to see a little more detail in my own 4X5 shots on photo paper.
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Old 05-09-2016   #25
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@Zuiko85: Thanks for the compliment.

I use 2mil (.002" thick) sheet brass. I make a small, round dimple in the brass using a metal punch with a rounded (i.e. not sharp) tip. The center of the dimple will be much thinner than the rest of the sheet. You don't yet want a hole in the dimple.

Then, with dimple side pointing down, i press while rotating the tip of a thin sewing needle into the center of the dimple, just enough to make an even smaller dimple in the middle of the larger dimple.

Then use a careful, circular sanding motion and very little pressure against a sheet of 400-600 grit emory paper, dimple side down. Just to sand off the smaller dimple and form a narrow hole maybe 1/10 mm wide. Continue to sand, to widen the hole a bit, and make the edges of the hole thinner and sharper.

Then inspect under a loupe and carefully clean up the hole with the very tip of the sewing needle, if needed. You want a very uniformly circular hole with no burrs or other oddities, at the optimal size for your camera's focal length.

To measure the diameter, place the piece of brass behind a millimeter scale, with half the pinhole showing along the edge of the scale. Backlight the pinhole if needed. Then use your loupe and line up the left edge of the pinhole with a millimeter mark and estimate how many diameters will fit into 1 millimeter.

If you're targeting a specific diameter for a specific camera focal length, start with the hole smaller than needed and continue to sand against the emory, clean up the hole with the tip of the needle and inspect/measure until you get the right size.

Also, for sharper images use a larger film/paper format size; the images you mentioned were 4"-by-5" format. But too large of a format results in diminishing returns, since for a larger format the focal length, and optimal f-ratio, will be bigger, requiring extended exposure times, reciprocity failure and potential camera shake-induced blurring. I find 5"-by-7" is a pretty optimal format size.

~Joe
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Old 05-09-2016   #26
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@Zuoko85: Another way to improve paper images is to pre-flash the paper.

For paper negatives I give it a slight, uniform exposure in the darkroom before loading into the camera or film holders, enough to render a very slight, off-white tone to the otherwise unexposed paper if it were developed without any additional exposure.

For paper negatives I like using grade 2 RC paper instead of multigrade paper, so the contrast isn't effected by the blue/IV of daylight.

For Harman DPP paper, I give it a pre-flash that's about half of that given to negative paper, enough to raise the darkest shadows in the image ever so slightly above unexposed paper black. I also rate this paper at ISO 8, and develop with liquid concentrate at 1+10 dilution for 3 minutes. I don't reuse developer for the Harman paper, but mix fresh each time; I'm using small quantities (100mL or so) in a Jobo tank.

~Joe
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Old 05-09-2016   #27
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Thanks Joe, I have tried the dimple method but I think my dimple, made with the head of a 1/4-20 carriage bolt, sanded smooth with finer grades, up to 1500 grit and then polished to a mirror finish with tooth paste. It think that set up makes too broad and shallow a dimple. I'll try a smaller diameter dimple. Also I've been using .005 in brass, I'll obtain some thinner stock. Funny you mention 5X7, that is the next size up I was going to build. I saw your falling plate design and it looks to be a good option. I've never cared for the fall off on ultra wide pinhole and usually opt for FL that produce a angle of view no wider than 70 degrees.
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Old 05-09-2016   #28
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Lithia Park Fountain by Colton Allen, on Flickr
Innova 6x9 Pinhole Camera
Expired Fuji Reala @ISO25
Epson V500
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Old 10-18-2016   #29
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Old 10-22-2016   #30
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Pinhole Cameras by Narsuitus, on Flickr

My pinhole cameras include 4x5 inch single-shot curved film plane sheet film cameras that I made from oatmeal cans and PVC pipes, 4x5 inch single-shot flat film plane sheet film cameras that I made from cardboard boxes, and an 8x10 inch single-shot flat film plane sheet film camera that I made from foam board.




Pinhole image by Narsuitus, on Flickr

Image made with Pringles can pinhole camera

Curved film plane

3-inch (approximately 73mm) pinhole to film plane distance

f/256 approximate f/stop

4-minute approximate exposure time in shaded overcast early morning sunlight

4x5 inch, ISO 100, Fomapan B&W film
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Old 10-29-2016   #31
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Old 10-29-2016   #32
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Leica MM Skink pinhole.







Game Over by tOny endieveri, on Flickr
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