GRAN TURISMO 81 WIFD F/5.9 APO TRIPLET Colour:Gold the user needn't worry about

the user needn't worry about configurations

This function is automatically enabled when the gain setting is 120 or higher

Motors: High precision stepper motor

Apparent field of view 48° Eye relief 37 mm Height

M98 male thread SKU

GRAN TURISMO 81 WIFD F/5.9 APO TRIPLET Colour:Gold the user needn't worry aboutThe 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