As long as your FOV isn't so wide you photograph the inside threads in front, or get vignetting from the lens mount in back, it'll work fine. I've got a #0(ish) shutter mounted on my only dedicated...
Type: Posts; User: ImageMaker
As long as your FOV isn't so wide you photograph the inside threads in front, or get vignetting from the lens mount in back, it'll work fine. I've got a #0(ish) shutter mounted on my only dedicated...
Center filter -- one answer to light falloff with very wide angle pinholes...
Marv, the image works fine for me. It's probably only a problem if you're using an English-localized copy of Internet Explorer...
Digital rotation other than 90 degree increments will always make the image less sharp -- some pixels have to be interpolated, which tends to soften edges. Solution: rotate in the largest possible...
Aaah, that was worth asking about. :)
I'll take your word on whether that'll work -- I can't see the magic smoke in that drawing, so I'm lost. ;)
I don't know if you'll be able to get the Packard mechanism to go faster than the 1/15...
The factory original darkslide for Polaroid pack films is a strip of heavy black paper that wraps around the far end of the pack (i.e. follows the same path the negative does when you pull the tabs)....
John, I don't think I've seen a pinhole camera slower than f/512 (that'd be a projection distance of something like ten inches, or close to "normal" field of view for 8x10); they're surely rare...
This is pretty close to what I did for my AutoPin 210 -- I broke the front element of the plastic lens out of the mount, pulled the retaining ring out to remove the back element, then opened up the...
Looks like you need to convince the lab monkeys (or your scanner) to let the blacks go black -- by default, I think a Frontier is set up for auto-exposure averaged over the frame, and tries to print...
No problem with lens images on this DIY side; the important thing is the self-made albumen medium, over here. And that one *is* nice. I've been thinking I need to get some gelatin and try using...
And did you notice the date of the photo at the bottom of the construction article? He built this nearly thirty years ago!
Pardon me, I gotta go snatch the page, in case it vanishes... :o
Hmmmm... They had them in stock last time I was physically in Glazer's, but that's been about two years now (I was on my way out of Seattle, moving to North Carolina, and stopped to buy a few last...
Better watch yourself -- those took remarkably good pictures for having a two-element plastic lens (that one may even have been fixed focus, I don't recall offhand), and the plastic body meant they...
Compensating reciprocity wouldn't be that hard -- the chip is calculating the total exposure a hundred or so times per second anyway, right? Heck, 3-4 times a second would be plenty fast! So, if...
Paul, if you have trouble finding XTOL, you can pretty easily get the chemicals to make MYTOL, which is an extremely similar ascrobate-based developer formula that's been on the web for a while. ...
Hmmm. Am I missing something? Like the image??
Can't help you on that one, Murray -- I've never seen seen one.
This looks interesting -- auto-exposure for pinholes has taken the next step beyond hacking an old pack-film Polaroid (which is much closer to my technical comfort level)...
However, one important...
We're into the DIY side of things now (adapter lenses intead of pinhole construction), but yes, if you want your images in focus, you'd have to set the lens at its original focal length from the film...
You can buy the Holgaroid at vendors like Glazer's Camera, B&H, and Freestyle, already fitted with a full-format 3x3 inch Polaroid pack film back. It uses a negative diopter to correct focus and let...
At a minimum, you'd need the film chamber, motor, and roller assembly from an SX-70 or 600 type camera, in order to get the film chemical pod broken and the chemistry evenly spread between the layers...
Shouldn't that be "Veni, vidi, leche"?
Not to mention name-giver of the Bridgeport vertical knee mill, possibly the best-known brand of machine tool on Earth. :)
I bet you can use that film for sandpaper, too -- Lucky SHD 400 is grainy stuff even in HC-110 (about like pre-1970s Tri-X); in Parodinal it's got to be like 80-grit carborundum, though I really like...