Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/17/84; site hao.UUCP Path: utzoo!watmath!clyde!bonnie!akgua!whuxlm!harpo!decvax!ittvax!dcdwest!sdcsvax!bmcg!asgb!hao!woods From: woods@hao.UUCP (Greg Woods) Newsgroups: net.rec.photo Subject: Stereo Cameras Message-ID: <1607@hao.UUCP> Date: Mon, 24-Jun-85 19:43:56 EDT Article-I.D.: hao.1607 Posted: Mon Jun 24 19:43:56 1985 Date-Received: Thu, 27-Jun-85 06:29:50 EDT Distribution: net Organization: High Altitude Obs./NCAR, Boulder CO Lines: 69 I am sending this for a friend at NCAR who is not on the net. Here is the text of his reply. If you reply by mail to this article, please make sure you note in the subject that it is intended for Doug Hoyt, and I will route it to him over our internal network. ============================================================================= ---------- Sender: HOYT Date: THURSDAY 06/20/85 13:17:59 MDT From: Doug ---------- There are several possibilities for stereo cameras. One must consider viewers for these cameras, so I mention that where needed too. 1) Stereo Realist camera. These were designed in 1942 by Seton Rothwite and manufactured from 1947 through the mid-fifties. They cost about $100-$150 each on the used market. Many clones of these cameras exist by other companies made during the fifties, but they are of lower quality generally. This camera is still the most commonly used stereo camera. Images are about 24mm by 24mm from 35mm film. Kodak and other places develop and mount them. The lens is f/2.8 but generally I keep it at f/22 for depth of field and expose ASA 25 film at 1/25th of second in sunlight. Stereo images to about 3 ft. can be made, although a special version of this camera for macro stereo exists for images at 4.5 inches (costs is $1200 and very difficult to find). It is a rangefinder camera. 2) Nimslo This is a four lens rangefinder designed to give prints. Result are only fair in my opinion. It uses 35mm print film and can focus to about 6 ft. The latest camera magazines sell them for about $25-30 dollars each. There is some question whether the Nimslo camera company will remain in business. 3) Burdlo David Burdlick in England modifies the Nimslo camera to give a two lens camera with about a 56mm separation (vs. 70mm for Stereo Realist and eyes). It can be used to take pictures of objects as close as 9 inches. Frame size is 24 by 35 mm so one needs a different viewer to use it. I have the camera on order for a cost of about $350 and need to find a viewer so I can't comment further. 4) LEEP camera system. This camera uses 120 film to produce wide angle stereos (about 140 degree field of view). It comes with its own viewer and mounts and now sells for $1245. Eric Howlett who makes these has sold about 50 of them. I have one on order (for the last 4 years actually) which is due late this month. A disadvantage of this camera is that the images are distorted and thus cannot be used for prints. Since this camera has been under development for 4 years, delivery has been delayed but should be better now. For someone new to stereo photography, the Stereo Realist is the best way to go. I can locate addresses of places that sell these if someone else doesn't give you them. Douglas Hoyt NCAR, Boulder, CO (not really on the net) ---------------------------------------------------------------------- -- {ucbvax!hplabs | allegra!nbires | decvax!noao | harpo!seismo | ihnp4!noao} !hao!woods CSNET: woods@NCAR ARPA: woods%ncar@CSNET-RELAY