Antique 4x5 camera creates 20 micron photolithography masks [video]
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Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#2Applied Science is one of my favorite YouTube channels.
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#3Ben Krasnow (a Googler by day) has one of the most incredibly interesting channels on youtube - and accompanying blog [1].
The effortless way he is able to describe complex processes and techniques used in his experiments borders on being Feynman like.
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#4I used to travel with a crown graphic - pretty much the same camera as in the video, shooting colour positive. You can do some great stuff with them, and tilt-shift is trivial, if that’s your thing. Quality on slow film is just crazy - I’ve a shot of an ex, she’s half-frame, and you can see the second hand on her watch - you can get very fine focus with a loupe, and having a Polaroid back to do some instant tests was a godsend - but you can’t get the film for it any more.
I have no idea where he’s finding film so cheap - I stopped when it was costing me £5 per exposure.
It also folded up into a very neat little box, which is irresistible to children - sadly one was handed it by a friend, who promptly destroyed it.
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#5I used to travel with a crown graphic - pretty much the same camera as in the video, shooting colour positive. You can do some great stuff with them, and tilt-shift is trivial, if that’s your thing. Quality on slow film is just crazy - I’ve a shot of an ex, she’s half-frame, and you can see the second hand on her watch - you can get very fine focus with a loupe, and having a Polaroid back to do some instant tests was…
I literally just bought a box of the film he's using here, it's a high contrast red-insensitive film, $15 for 50 sheets, https://www.freestylephoto.biz/531345-Arista-Ortho-Litho-Fil...
developing it for normal contrast images is more difficult but not impossible
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#6Ben's interview on The Amp Hour [0] is pretty great as well. Awesome person, amazingly the same in person as in his video persona.
[0] https://theamphour.com/480-an-interview-with-ben-krasnow-8-y...
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#7I used to travel with a crown graphic - pretty much the same camera as in the video, shooting colour positive. You can do some great stuff with them, and tilt-shift is trivial, if that’s your thing. Quality on slow film is just crazy - I’ve a shot of an ex, she’s half-frame, and you can see the second hand on her watch - you can get very fine focus with a loupe, and having a Polaroid back to do some instant tests was…
For color, I think it really depends on your willingness to use expired film. I've shot mostly expired film for about 15 years, and once you've tried a range of emulsions of various ages and provenance, it's not hard to figure out how what's going to perform well under what conditions. Even 20 year old color neg performs pretty well with only modest overexposure. B&W you can still get down to about $1/sheet if you're willing to shoot Arista.
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#8I used to travel with a crown graphic - pretty much the same camera as in the video, shooting colour positive. You can do some great stuff with them, and tilt-shift is trivial, if that’s your thing. Quality on slow film is just crazy - I’ve a shot of an ex, she’s half-frame, and you can see the second hand on her watch - you can get very fine focus with a loupe, and having a Polaroid back to do some instant tests was…
I literally just bought a box of the film he's using here, it's a high contrast red-insensitive film, $15 for 50 sheets, https://www.freestylephoto.biz/531345-Arista-Ortho-Litho-Fil... developing it for normal contrast images is more difficult but not impossible
I've shot a ton of Kodak Ortho film in 4x5 at EI 3, 6, and 12. It's actually super easy to develop. I recommend stand development in 1:100 HC-110 with occasional agitation. The developer basically exhausts after 10 or 12 minutes depending on the temperature, which happens to be pretty much exactly the right development time, so it's pretty much impossible to over-develop.
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#9I used to travel with a crown graphic - pretty much the same camera as in the video, shooting colour positive. You can do some great stuff with them, and tilt-shift is trivial, if that’s your thing. Quality on slow film is just crazy - I’ve a shot of an ex, she’s half-frame, and you can see the second hand on her watch - you can get very fine focus with a loupe, and having a Polaroid back to do some instant tests was…
If you want cheap film for large format, shoot x-ray film.
Re: Antique 4x5 camera creates 20 micron photolithography masks [video]
#10Cringing it everytime he calls it an antique camera.
This is like a millennial talking about an antique technology called 'VHS' tape.