I had heard that the particular grain size and distribution was such that it was too difficult to get an even dispersion across sheet film sizes.
Type: Posts; User: John Schneider; Keyword(s):
I had heard that the particular grain size and distribution was such that it was too difficult to get an even dispersion across sheet film sizes.
I found a stack of Kodak Technical Data publications that I had printed out 15-20 years ago, so I'm going to scan and post them here for reference.
Here is publication P-255 dated Feb. 2000, for...
I found a stack of Kodak Technical Data publications that I had printed out 15-20 years ago, so I'm going to scan and post them here for reference.
Here is publication F-7 dated Nov. 1996, for VP...
I found a stack of Kodak Technical Data publications that I had printed out 15-20 years ago, so I'm going to scan and post them here for reference.
Here is publication F-16 dated May 2000, for...
Thank you Bob! I knew you'd know everything about these!
I found a box of several Linhof compendiums that I bought for some forgotten project. Can someone help identify which cameras they go to please?
The first is the type that I used for my...
I finally, *finally* found my Calumet shutter speed tester. I tested some lenses and noticed that the shutter speed decimal equivalents on the label are wrong. It begins okay (1=1.000, 1/2=0.500,...
As the title says -- I'm like to mount my 150 Xenotar on a helical for use with my Cambo Wide. Buying something off the shelf would be much much easier...
It's a well-known secret that the older pre-F rails were typically but not always a tad wider than the F rails. Some pre-F function carriers work fine with F rails and vice versa, but some pre-F...
Here is the lens, front and back. It looks to be a barrel lens that was mounted into a shutter (based on the difficulty, the workmanship, and the included caps, I would guess Steve Grimes). So if...
This is both a general question and one about a particular lens. And if I've misstated something, please, please correct it for future reference.
A. First, it's well know than when Goerz was a...
Go to http://www.bhphotovideo.com/find/FreeCatalog.jsp, download the Professional Photo Sourcebook, and look at the LF lens specs
133 Cooke Series VIIb is wonderful and will front-mount in a Copal 1. Hard to find and harder to find coated, but worth searching for.
KEH is your best bet. I always prefer Linhof boards; new or used they fit the best. I have had very good luck also with name-brand copies (Nikon, Toyo, Wista). Anything by other than these four...
Rolls-Royce is a massive (>25,000 workers) company that has no problems staying in business selling aircraft and marine jet engines, stationary power turbines, etc. Cars were never more than a...
I have had good experience using Summers Optical products (type J-91 adhesive in particular) for jobs up to and including a 19" Dagor: https://www.optical-cement.com/cements/chart.html
Like Kevin...
I use the EZ-Lock variety sold by McMaster-Carr (the ones made for metal). I tap the wood with a sharp tap of the right size, c'sink the hole, blow out the dust, and epoxy the insert in place. The...
Thanks! That was the post I remembered -- has it been 7 years?!?
I've bought a few lenses which have had homemade but very nice aperture scales, with a clear plastic on top of a piece of thick paper (with the printing) with self-adhesive backing. How do I make...
Isn't that the truth!
Yes it's just for the rear cell. The gentlemen already turned the adapter for the front cell before his health deteriorated:(
That's a nice hobby to have. Back when I was a grad student and could sneak out of the lab and down to the machine shop and make custom camera parts (mostly odd-format backs for Arca and Toho). But...
Does anyone have a good source for a little bit of lathework? I used to use a wonderful retired machinist that Kevin Crisp told me about, but he has health issues so isn't taking any work.
I have...
[QUOTE=Drew Bedo;1172575]knobs and catches may be duplicated, gears and tracks too I'd think./QUOTE]
Knobs (screw machine work), catches (stampings), gears/racks (casting/gear hobbing/horizontal...
More details. Left pic: the front element is on the left, rear barrel to the right, with the adapter for the front barrel in between.
..................Center pic: detail of the rear barrel after...
Very nice to see! I used to have two of these lenses (from KS-87B aerial cameras; mine were by Pacific Optical) but could never figure out how to easily mount it into a shutter.
Regarding the...
I had a military-surplus 75mm Zeiss Biogon barrel lens that I wanted to mount into a shutter. I borrowed a converted lens and made the attached sketches in case anybody wants to do this. After...
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I just got this Computar brochure and thought it might be good to post it here. Interestingly, it only gives the half-field angle, rather than image circle, but the usable image circle has been...
I guess I had it in my head that it was a double Gauss, but you could be right as well. The mechanical design is such that you can only pull out the lens elements by unscrewing the trim ring around...
If you have a table saw (which I don't), then probably yes, although the foam does give a bit of vibration and sound damping so the lensboards don't rattle around.
Here are my modifications to an Ebony box (see http://www.badgergraphic.com/opencart/index.php?route=product/product&path=2_17_117&product_id=3490). I bought it used from a Forum member (two boxes...
I remember someone on eBay a few years back selling both an SL and a SV Dagor. I remember one of them being 50mm f.l., but I don't remember which one.
I do have a 199mm f4.5 Dagor-S, and I can...
Counting reflections is really more of a dynamic process. Use a point source (like an LED), close the shutter or unscrew the elements so that you're looking at only one element, and then slowly tilt...
Jim from Mpex recommended ripstop repair tape; that's all I've used and have had no problems.
Try some black paint on the chip; the result might be better than you expect (I have an even bigger chip in the same place on my 19" Dagor, and the results seem fine to me).
These are wonderful finders.
On the old black anodized dual 4x5/5x7 finders, the 5x7 scale went from 121 - 500mm as Bob noted.
Linhof never (correct me if I'm wrong, Bob) made a "brown" finder....
Keith Canham is exceptionally helpful. If you send him an email, I'm sure he would send you a picture.
Cambo was all into modularity and reusing parts, so it's quite possible that the grip came from or was adapted from another Cambo model.