Astronomy Specialist

EXTREME 1.5x QUADRUPLET FOCAL EXTENDER FOR RiFAST & RiLA

$2,999.00

 

Designed from our master optician Massimo Riccardi, this 4 lens design extender will bring your powerful RiFAst or RiLA telescopes up to f/5.7 and f/7.8, increasing resolution and keeping the same – tiny – star’s shape.

It’s fully corrected for a wide field of 42mm. A KAF 1680X chip can be used anyway, with a small amount of vignetting and quality decrease on the extreme borders. It’s fully diffraction limited from 450nm to 730nm.

 

Focal reduction
1.5 x
Number of lenses 4
Corrected field
42 mm
SKU
XTFE15
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