The Gran Turismo refractor is an apochromatic triplet with FPL-53 element for highest colour purity and strong contrast! A refracting telescope that is versatile and leaves little to be desired.
The William Optics GT 81 apo stands for optimal chromatic correction and best possible contrast - a powerful travel telescope for observation and photography.
Aperture 81 mm
Focal length 480 mm
Focal ratio f/5.9
Multicoated FPL53 triplet lens with air gap
2.5" RAP focuser with M63x1 connection thread, as well as 2" and 1.25
Innovative and revolutionary William Optics design combines precise internal focusing with the highest quality optics available to create the ultimate apochromatic refractor for astrophotography
FPL53 Triplet Lens
Aperture 81 mm, focal length 480 mm
Internal focusing prevents image shift and vignetting
Saddle bar handle for mounting the guiding telescope