Here I am, still researching for this crazy pinhole camera thing. In previous episodes, our hero decided on doing 4x5 pinhole photography to record sitting through a night.
Conclusions from this episode of research:
1) I’ll get the 4x5 developed by mail (unless there’s a local shop) rather than do it myself, at least for now.
2) Meanwhile, I’d like to shoot some 35mm b&w with a pinhole camera, since I can get the film processed locally.
3) After looking into a few kits, I think I might build my own, and buy the aperture.
4) I need to confirm that I can buy BW film locally and get it processed locally
5) My goal for this week: build a 35mm pinhole camera so I can shoot next weekend. Blowing film just to mess around will be completely acceptable. If BW developing is not locally available, color film is acceptable.
6) Update: Pinholes ordered from calumetphoto.com. 12 pinholes of varying sizes. That’ll keep me out of trouble. :)
On to the messy research:
Sure, I did film in high school… in roll holders. But no, this is 4x5. Different beast.
HP Combi-Plan - about $75
A little on tray developing: http://photo.net/large-format-photography-forum/003q8Q
———-DEVELOPING BY MAIL———-
http://citizensphoto.com/ - $1.90 a sheet for bw.
http://www.gammasf.com/ - 4x5 is 5.50, with $15 min
http://www.aandi.com/fp.html - $3 a sheet for 4x5 …comes well recommended
http://www.reedphoto.com/film/color-film-developing.html - $2.90 for 4x5
HOW TO PACKAGE:
You get an empty film box, the kind with three “halves”, for lack of a better word; tape it up so it doesn’t open accidentally.
On the box top, write your name, phone number, address, what kind of film it is, what process it requires (C-41, E-6, etc), and how many sheets are in the box.
Put that in a heavy black film plastic, and put that in a bubble envelope or shipping box.
Ask that the film box and plastic be returned to you.
Also write on your film box EXPOSED FILM! OPEN IN COMPLETE DARKNESS.
———-BUYING FILM BACKS———-
Riteway is good.
———-THOUGHTS ON HOW VARIOUS PROCESSES EXPRESS VALUES———-
4X5 pinhole - practical, for what I’m doing, which is why I went there. But there’s also a romanticism to it.
Buying a camera instead of making one - my love of beautiful gadgets.
Sending away to have film developed - it’s really not about the romanticism of doing it all yourself, or about the romanticism of material and process. It becomes about whatever is convenient, for doing a sensible sort of recording.
———-HARMAN TITAN 4X5 CAMERA———-
Paper substitution detailed on Ilford website.
The 72mm cone’s pinhole size is 0.35mm which equates to an aperture of f206.
Some photos made w/ the camera:
———-4X5 PINHOLE CAMERA FOR ALL BACKS———-
Another one worth looking into.
0.20mm pinhole - f/250
focal length 50mm (super wide!)
———-TEST WITH 35MM KIT?———-
focal length 20mm —— this is about equal to 72mm for 4x5
———-TEST WITH 35MM SLR CAP?———-
I mean, since I have a camera already…
.25mm aperture, f/181, 50mm focal length
———-SIGH: MAKE MY OWN PINHOLE CAMERA———-
Probably the best way to go. The question is, what stop? what focal length? What size pinhole? (This is the equivalent of my coveted pinhole camera kit.)
35mm format - 22mm focal length - 0.171mm pinhole - 43mm neg diagonal - f/128
22mm focal length - 0.19mm pinhole - f/117.26
———-FOCAL LENGTH, F-STOP, APERTURE, AND EXPOSURE TIMES———-
focallength/fstop = aperture
20mm/206 = 0.0971mm
Details on f/stops: http://www.uscoles.com/fstop.htm
So the next question is, how do I get exposure times for f/206?
Oh, yes, I can just use the Ilford one. But note: f/206 is darn close to f/256: http://www.ilfordphoto.com/Webfiles/2011106152612113.pdf
sources for pinhole sheets: http://photo.net/learn/pinhole/pinplate.htm
http://www.nationalaperture.com/pinhole.htm .35mm pinhole is 350µm
http://www.calumetphoto.com/eng/product/minute_aperture_imaging_pinhole_aperture_set/py3005 - a dozen for $42, ships free