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Lumicon 2.5x telecompressor lens excellent focal reducer for digital imagers
I have a lumicon 2.5x telecompressor lens that I used with a gstar-ex to take pictures with my SCT , it gave excellent results reducing my SCT from F10 to F4 , also works with refractors .The details from their Website are given below. I bought it from myastroshop a few years ago for about $185 so I am asking $110 including postage.
Product Details
The 2.5X CCD Compressor Lens is used to widen the field-of-view of 1.25" Digital Imagers on refractors and SCTs. The LL1025 threads into the "nose-piece" of 1.25" Digital Imagers. In its standard configuration (nose-piece to CCD Chip distance of about 1.2"), it yields a 0.4 reduction; i.e. a 1000mm focal-length telescope will become an effective 400mm focal-length system. The lens is of excellent optical quality, with a minimum spot-size of about 20-microns, matching the pixel size/resolution of common CCDs.
Last edited by 5ash; 08-08-2014 at 09:27 PM.
Reason: Addition
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