HATNet Project – Wikipedia, The Free Encyclopedia
The prototype instrument, HAT-1 was built from a 180 mm focal length and 65 mm aperture Nikon telephoto lens and a Kodak KAF-0401E chip of 512 × 768, 9 μm pixels. … Read Article

I Am Forming An E-mail List On The Subject Of Binoculars …
My mother was an inspector in the lens plant. In college I first majored in Astronomy and Astrophysics at U Mass but bailed out of that major John Briggs jwb@___yerkes.uchicago.edu. Engineer at Yerkes Observatory, now on assignment at Apache Point, N.M., at the Sloan Digital Sky Survey. … Read Here

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The objective lens dia must be bigger than you would expect in order to have much field of view, in fact the FOV is limited by the objective From: "John W. Briggs" <jwb@___erkes.uchicago.edu> Just as an aside, the WWII battleship "Massachusetts," which has been a floating musuem in Fall … Access Content

June Program – “It’s All About The Light.”
Sues in digital cameras, see http:// theory.uchicago.edu/~ejm/pix/20d/ tests/noise • Canon Zoom Wide Angle Telephoto EF 28-300mm f/3.5-5.6L IS USM Autofocus Lens, $1,800 Excellent Condition. lens, and I clipped it on my belt loop (make sure your belt loops … Retrieve Full Source

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Canon EF-S 18-55mm f/3.5-5.6 USM Lens Sigma 28-300mm f/3.5-6.3 Macro Autofocus Lens Canon Tamron Zoom Telephoto AF 70-300mm f/4.0-5.6 LD Macro Nikon N70 Film Camera + Tamron 24 – 70 zoom ++ … Doc Retrieval