From: Albert Baier <albertgbaier.nul> Date: Tue, 30 Jul 2013 14:42:23 -0500 Archived: Tue, 30 Jul 2013 17:39:13 -0400 Subject: Re: 1971 Costa Rican Photo Is Prosaic Object >From: Edward Gehrman <egehrman.nul> >To: <post.nul> >Date: Mon, 29 Jul 2013 07:27:21 -0700 >Subject: Re: 1971 Costa Rican Photo Is Prosaic Object Ed, Bob: 1. The Haines/Vallee report did not use the original negative. There is no provenance or chain of custody mentioned for the copies used. 2. Focus is dependent on lens to film distance. Fixed focus (non-zoom) lenses can be used at any subject distance, provided the lens-to-film distance is correct. 3. Lenses for aerial photography (like the Zeiss lens used) are designed to render images that have very low optical distortion, so that objects can be measured accurately. Good color correction is required so that the frequency range of the film focuses at the same plane. They must be fast, and cover a 9" x 9" film area. This makes them expensive. 4. The object is brighter than the background, which is easy to fake. Dark on a light background is harder, but still possible. In view of point 1., IMO, no definite conclusions can be made, but I lean toward the prosaic. BTW: The frames shown in the report represent some of the worst aerial photography I've ever seen. Surely the Zeiss RMK 15/23 is capable of better images. Something's not right here. Albert Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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