ASTRO-PHYSICS
305mm F/12.5 Maksutov Cassegrain
with Carbon Fiber Tube
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The 305mm f/12.5 was introduced at the Northeast Astronomy Forum (NEAF) on April 26, 2008.
Specifications
Clear aperture |
12 inches, 305mm |
Secondary size |
3.46 inches, 28.8% |
Focal length |
150 inches, 3810mm |
Focus range |
4.1 inches, 105mm |
Focal ratio |
f/12.5 fixed focal ratio |
Field size |
3/4 degree (1.5 moon diameters), over a 2 inch field |
Magnification range |
64x with 60mm ocular to 952x with 4mm ocular |
Resolution |
0.375 arc seconds |
Size |
14" diameter x 36" long, with added 5" focuser length |
Weight of tube w/o dewcap |
65 lb., 29.5kg., dewcap 6 lb, 2.7kg |
Diameter of corrector cell |
14.50", 368.3mm |
Finish |
Black anodized cells, clear coated carbon fiber tube |
Mirror coating |
96% enhanced and protected aluminum |
Corrector coating |
Broadband multi-coatings both sides |
Copyright © 2004 Astro-Physics Inc. All rights reserved.
Last modified:
December 17, 2012
Astro-Physics,
Inc.
11250 Forest Hills Road, Rockford, IL 61115, U.S.A.
Phone: 815-282-1513 Fax: 815-282-9847