Officina Stellare Extreme 1.5x Extender for RiFAst300
Designed from our master optician Massimo Riccardi, the Officina Stellare Extreme 1.5x Extender for RiFAst300 will bring your powerful RiFAST300 telescope up to f/5.7, increasing resolution and keeping the same – tiny – star’s shape.
This 4 lens design reducer is 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