GRAN TURISMO 81 WIFD F/5.9 APO TRIPLET Colour:Gold Pointing is made accurate through

Pointing is made accurate through the usage of a model containing up to 100 stars

the user needn't worry about configurations

offers several holes to accommodate 31

minor vortexes and ultra thin details are only visible at this wavelength

Baader CMOS-optimized filters - advantages

GRAN TURISMO 81 WIFD F/5.9 APO TRIPLET Colour:Gold Pointing is made accurate throughThe William Optics Gran Turismo 81 WIFD is a game changing new three element apochromatic refractor featuring a patented internal focus design. The WIFD series has been designed from the ground up to support the latest large and heavy high resolution cooled cameras and accessories. The focuser movement is integrated inside the main OTA, so no external focuser drawtube is needed. This will reduce tilt caused by focuser sag and mechanical flex and