WIlliam Optics Fluorostar 91 FPL53 Triplet APO Refractor with 3.3" Rack & Pinion Focuser - Space Grey
| Article number: | T-FLT-91SG-RP33 |
| Availability: | More on the Way to us |
| Delivery time: | More on the Way to Us |
William Optics Fluorostar 91 Triplet APO Refractor Telescope with 3.3" Rack & Pinion Focuser - Space Grey Version
RotoLock Adapter
A 2" RotoLock adapter is included for establishing a strong FLT 91 to WO 2" diagonal or accessory connection.
Bahtinov Mask
Uncover William Optics' patented Bahtinov Mask by detaching the face plate from the retractable dew shield lens cover. Experience brighter star patterns and accurate focusing for astrophotography via the Mask's clear design.
Versatile Saddle Bar
The Saddle Bar, in addition to its solid handle, contains a built-in dovetail chamber for attaching the William Optics Uniguide or other V series guiding and finder scopes.
New Focuser Knob
Focuser knob design is larger and more ergonomic for improved comfort during use.
Field Rotator
Markings for each degree and a sturdy thumbscrew position lock are both included on the FLT 91's extremely smooth field rotator.
Soft Carry Case
A soft carry case comes standard with the William Optics Fluorostar 91.
William Optics Fluorostar 91 Triplet APO Refractor Technical Specifications
- Lens Type: Apochromatic Triplet Prime Lens
- Focal Length: 540 mm
- Aperture: 91 mm
- Focal Ratio: f/5.9
- Focuser: Dual-Speed 3.3" Rack & Pinion
- Color: Space Grey
- Lens Material: FPL-53
- Strehl Ratio: 0.95+
- Camera Format: Full Frame DSLR/Mirrorless/CMOS/CCD
- Supported T-Mounts: Canon EF, RF/Nikon F, Z/Sony E/Pentax K/Micro Four Thirds (M4/3)/Fuji X
- Retracted Length: 441 mm
- Extended Length: 510 mm
- Extension Tube Length: 40 mm
- OTA Weight: 9.2 lbs. (4.165 kg)
- Total Weight: 12.3 lbs. (5.575 kg)