Good Day Folks,
Thank you for the referrals and continued support. Sometimes we do have projects that take us a little longer but we always want to ensure the quality of the projects we work on...
Type: Posts; User: Steve Grimes.; Keyword(s):
Good Day Folks,
Thank you for the referrals and continued support. Sometimes we do have projects that take us a little longer but we always want to ensure the quality of the projects we work on...
That's not a Wide Angle Lens and not intended for use with 4X5" format. SKG
For a "panoramic" camera you need to determine the length of the conical tube needed. Do this by experiment: Arrange the lens to be looking at a distant object and move a ground glass until an...
Louis at Photo Gizzmo is a dealer for these. He had a dealer sample on hand when I visited his shop in NYC yesterday.
Possible: 1. Loose (adrift) or missing glass element. 2. Shutter blades not closing all the way. 3. Lens elements not screwed all the way to the shoulder of the shutter due to wrong mounting on...
The lens cells are different sizes and threads and are not interchangeable between the Supermatic and Compur shutters.
SKG
Front lens thread for a Copal #1 shutter is M39X0.75, An adapter to allow a more standard sized filter such as 46, 49, or 52mm is a special made item which I can make and costs $50.00 See...
I have heard that WeeGee the newspaper photographer who made front page tabloid photos of dead gangsters on the sidewalk was always sure to arrange the victims hat so that it appeared casually...
Yes, same thing a mounting a lens to an enlarger lensboard.
Just like enlarger lenses some need to have the back element unscrewed to assemble to the lensboard and others don't. Most lenses ...
Robert Triffin is a real, actual lawyer.
SKG
Note to avoid confusion: the lens diagrams on the catalogue page at http://members.aol.com/jcpere/Goerz.jpg
are reversed in what looks like an original typo. the diagram of the Artar and the...
Yes, this switch to Press shutters can be readily done. Sometimes wide angle lenses need extra attention to be sure the iris is in the right place and the setup of spacers allows iris operation. ...
I routinely enlarge holes in lensboards to specific sizes for $15.00 plus return postage to you. Takes overnight in the shop. See: http://www.skgrimes.com/lensmount/shutmt/index.htm for more ...
Reads like you have a lens board for a 2 X 3 camera. Regular Linhof Technika lensboards are available from Linhof dealers. There are also many types of good copies available at around $40.00...
This spotted appearance of the elements is common in older Schneider lenses. The phenomenon is due to voids/defects in the paint on the edge of the lens. The element looks good and the paint...
34.7mm See:This page about Copal number hole sizes
SKG
These are the same board as the Toyo 45G and available from Calumet and other dealers. Try Calumet part # TY46550 Calumet
SKG
Go down to the hardware store and purchase one each of all the likely candidates of threaded nuts, such as 8-32, 6-32, 10-24, etc as they may have available. These will cost you about $0.012 each...
The iris scale on the shutter does not match the lens. The shutter may have been replaced/exchanged for a different one and the original scales may not have been compatible with the replacement...
Click here (scroll down the page to a table of various shutter hole sizes.
SKG
As a practical matter the Sinar DB lenses are useable only with the Sinar system -- the auto iris is operated by the Sinar auto shutter and has no manual setting as a free standing lens. The...
This can be done by making an extension tube that threads into the lensboard and stands the shutter out a half inch or so from the lensboard. The tube is smaller in diameter than the outside of...
Any "positive" (Magnifying) lens can be used to make an image. The Symmar and Apo Symmar lenses are comprised of two positive lenses set up to be used at the same time. The nature of the way they...
The PDN/Javitts show is open to anyone in the trade. An assistant photographer at a University is certainly "in the trade" I registered on line but a friend who came along with me simply ...
Most manufacturers use a sort of flexible plastic "blow molded" out of flat stock. There's a general perception that lenscaps should be inexpensive. (When the U.S. Navy spends $150.00 for a...
The truth is that an f-8 lens will deliver only f-8 even if its in a shutter whose iris goes larger. (Sort of like a 50 horsepower car will only go 75mph and fitting it with a speedometer that...
The most accurate way to test a shutter speed is by experiment with film. Be sure of all the parameters except the shutter speed. Expose film and by densitometer or other method backtrack to tell...
Springs used within their design elastic limits do not "know" whether they are stretched, relaxed or compressed. It makes no difference. So, the best option is one in which the iris and shutter...
Some photographers prefer to use the locating screw as a security against the shutter loosening on the lensboard and that's an OK use. It is extremely rare to see shutters with this properly...
The solution to Presbyopia ("old eye vision") is reading glasses. So called "Plus Spectacles" are, in my opinion one of the greatest technical inventions of all time. They are so simple as to...
You can use the diopter system of lens "power" to estimate this. I forget the formula for diopters but it runs: 1000mm =1 500mm=2, 250mm = 4, etc. This is a system used to reference the focal...
Click: HERE to see what I have on lens cementing. At the bottom of that page is also a link to a reprint of a 1943 Popular Science reprint of a Do It Yourself article on the subject.
I can make any threaded flange for any lens on short notice. I add flanges to the stock list after several have been needed or ordered. For the 72mm size there are at least two possible Metric...
The lens groups unscrew from the shutter like a bottletop from a bottle. Turn counterclockwise to loosen.
They are often stuck in place and require a fair amount of force to loosen if they are...
New Copal parts are available exclusively from C.R.I.S. www.criscam.com. (RTS is the wholesale distrubutor of the shutters themselves, not parts)
Compur parts are handled by Schneider, USA ...
That is a picture of a Calumet rotating spring back.
There's a picture of a Graflok back for auction at http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1222195778 Or just search eBay ...
These American made lenses do not take any ordinary metric size filters. Its best to have an adpater made (either slip over or screw in) to convert the lens to a standard Metric size, probably...
That lens is suitable for use on 8X10 for portraits. It is a single element lens (actually, a cemented doublet) with the glass behind the iris. They usually have a glassless deco ring fitted to...
Any 1/4-20 Screw of a right length can be used. It will probably work better if the thread is "releived" near the neck like your original. That necking down can be done easily on a metal lathe,...
There is an abundance of old pretty good oscilloscope camera lenses around that are good for this kind of close up photography. Typically they are 75mm focal length, but not wide angle. They will...