William Optics Fluorostar 91 FLT91 f/5.9 Imaging APO Triplet Refractor FPL-53
William Optics Fluorostar FLT91 f/5.9 Imaging APO Triplet Refractor FPL-53 - Australian Authorised dealer
The FLT91 is compatible with both the FLAT6AIII - a 0.8x flattener/reducer - AND the 1.0x FLA68III flattener - providing excellent imaging versatility.
Please note: the guide scope in the photos is not included - this is an optional extra you can find here.
Carrying case is included.
The William Optics FLT 91 is the perfect apochromatic refractor for visual and photographic astronomers demanding excellence in a midsize telescope. The three-element optical design features a 91mm aperture using FPL-53 glass. The STM coatings and superb quality provide excellent optical performance and unmatched value.
The Rotolock 2 inch adapter provides for a solid and efficient connection for a WO 2 inch diagonal, and other accessories.
The retractable dew shield features a removable lens cover, with our patented Bahtinov Mask revealed by unscrewing the faceplate. The clear design allows for brighter star patterns and precise focusing for astrophotography.
The Saddle Bar Handle offers a solid handle with a built-in dovetail chamber for use with the WO Uniguide scopes or other V-style guiding/finder scopes.
The super-smooth field rotator includes markings for every degree and a solid thumbscrew position lock.
FLT91 + 2"diagonal + eyepieces.
It is recommended to use the included extension tube.
FLT91 + Flat6aIII + CCD (55mm CCD setup)
When using the flattener the extension tube should be removed.
Flat6AIII settings - 5.4mm.