Showing posts with label lens. Show all posts
Showing posts with label lens. Show all posts

Sunday, December 10, 2017

Perkin Elmer 36 inch F8


Perkin Elmer 36" F/8 lens.

K38 Shutter  by Fairchild

Back Focus 18.052"
FF 21.461







The following is from an Ebay auction
for a full lens assembly

















Here for comparison is a Perkin Elmer
36" F/4 lens from an SR71 camera




Wednesday, September 24, 2014

Boresite for Fastair camera

This is a boresite for focusing fastair cameras.  It is a standin for the camera wherever the camera may be positioned and need to be focuses.

The front bit of the black optical tube has a lens with a crosshair etched in the flat surface there.  The opposite end is an eyepiece thru which you can focus and view the eyepiece.  There is a two piece draw tube focuser which is secured by the two set thumb screws on the right side.

It is all in a a nice Wollensak wood case for storage.







Monday, August 25, 2014

Scoring Camera


This is a Traid Scoring camera.  It has a 3mm fisheye lens and films to 16mm.  The main film mover is a B&H 70 core 100' movement, driven by a 28v DC motor.

The other feature is that it has a badge saying it is supplied to the USAF by Land Sea.  This company was small when this was built, and it was a contractor the the USAF and not affiliated with the Traid company.  It supplied logistics to the military of the nature of air logistics, test aircraft support, and other things that were out of band for normal channels.

I figure from what I've read they would be the ones in first to set some oddball operation up, and then the AF would come in and document it and staff it with personnel from normal billets if it had to continue operation.

Not sure about the internal ring of 10 neon lamps either.  I suspect they are to do with whatever a scoring camera is.  I didn't find anything to do something like recording timing or other information on the film as the test runs, so not sure why you'd want so much illumination internal to the lens assembly.

Also I had to know how the hell a 3mm focal length lens could be the size of a tallboy beer can.  Usually they have some sort of fisheye assembly on the front, but they tend to shrink with the focal length.  I have 5mm lenses for 16mm film format which are 4" long, but they have curved coverage of the film.

























Tuesday, April 1, 2014

Bell and Howell GSAP Camera and Boresight

This is a  Gun Sight Aiming Point Camera.  G.S.A.P.  16mm film, Bell&Howell.  standard 16mm 50' cartridge compatable also with Filmo cartridge cameras.

 I have this camera currently, which is a naval camera.  Still trying to find out which aircraft this would have been used on.  F8F?

Also there is an image erection device which I don't have.

I will have to find out how to trip the shutter w/o the power, as I assume that might be the way the boresight was used on the airframe. ]

See here for a titling device.  This allows the pilot to put a labeled leader on the film

Bell and Howell Titler

This camera came with a Kodak Kodachrome loaded cartridge, which of course is probably a brick as noone has any chemistry for Kodachrome, and certainly it would be horribly expensive to get 50' developed due to the amount of chemistry required for movie film.

Luckly there is no lost color footage from WW2, most likely because the capacity indicator is at 50' showing no usage.