Manufacturers & Suppliers of Astronomical Telescopes in India Serving Amateur Astronomers Since 1976
Manufacturers & Suppliers of Astronomical Telescopes in India Serving Amateur Astronomers Since 1976
Fluorostar 91 APO
Fluorostar 91 APO
Fluorostar 91 APO
Fluorostar 91 APO
Fluorostar 91 APO
Christmas Tree Nebula by By Nihar Nair
Christmas Tree Nebula by By Nihar Nair
DESCRIPTION
The 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.
ROTOLOCK
The Rotolock 2 inch adapter provides for a solid and efficient connection for a WO 2 inch diagonal, and other accessories.
BAHTINOV MASK Patented
The retractable dew shield features a removable lens cover, with our patented Bahtinov Mask revealed by unscrewing the face plate. The clear design allows for brighter star patterns, and precise focusing for astrophotography.
Versatile Saddle Bar Patented
The Saddle Bar Handle, offers a solid handle with a built in dovetail chamber for use with the WO Uniguide scopes, or other Vixen style guiding/finder scopes.
New Focuser Knob
A larger fit designed for better ergonomics.
Field Rotator
The super smooth field rotator includes markings for every degree, and a solid thumbscrew position lock.
Soft Carry Case
The standard package comes with a soft carry case.
Lens Type : Apochromatic Triplet Prime Lens
Focal Length : 540mm
Diameter : 91mm
Aperture : f/5.9
Focuser : Dual Speed 3.3" R&P Focuser
Color : Red
Lens Material : FPL-53
Strehl Ratio : 0.95+
Camera Format : Full Frame DSLR / Mirrorless / CMOS / CCD
Test Report : Zygo test report available at additional cost
T-Mounts Supported : Canon EF, RF Nikon F, Z Sony E Pentax K Micro Four Thirds (M4/3) FUJI X
Retracted Length : 441mm
Extended Length : 510mm
Extension Tube Length : 40mm
OTA Weight : 4.165Kg
Total Weight : 5.575Kg
Extension Tube Weight : 0.105Kg
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