William Optics Fluorostar 91 APO Triplet OTA w/ 3.3" R&P Focuser (T-FLT-91-RP33)

William Optics Fluorostar 91 APO Triplet OTA w/ 3.3" R&P Focuser (T-FLT-91-RP33)Astronomers desirous of superb visual and photographic intermediate sized refractor performance will much appreciate the William Optics 91 mm f 5. 9 Fluorostar. The FLT 91 employs FPL 53 glass and has an optical design consisting of three elements. ln addition, with STM coatings enabling superb optical performance, the FLT 91 provides excellent quality that is tough to match. Recommended Optional Accessories T Mount for M4 3 Nikon Canon Sony a Pentax

25" Filter Adapter into your T2-threaded ASI camera to allow use of standard 1

This guarantees you visibly sharp stars across the largest imaging sensors available today

Weight (include guider ring and dovetail): 250 g

with fine-tuning and locking system Latitude adjustment range 15-90° (90° is the motorized Alt-Azimuth mode) North pointing horizontal azimuth adjustment range 4° Effective payload <22kg (without counterweight)

Teflon azimuth bearings

00lbs Field Stop 7

2mm (8") Focal Length: 2032mm (80") Focal Ratio: f/10 Focal Length of Eyepiece 1: 25mm (

An ideal companion for their TV-85 APO refractor optical tube assembly

offering the photo enthusiast ultra long range telephoto photography options not possible in conventional photography

78") @ 20x with included eyepiece Close Focus: 21

Zeiss TYPE OF ADAPTER ClickLock

510mm (Fully Extended) Tube Weight: 4