William Optics Fluorostar 91 (aka FLT-91) RD / red OTA (SKU: T-FLT-91RD-RP33) opinie

Polski English  
Call us (Mon - Fri: 10 - 17, Sat: 9 - 13)     Warsaw : 22 374 3140,   22 374 0607,   501 419 827
Polski English
teleskop
Astronomia Optyka Technologia
   Quick Find    
 
   Shopping Cart more    
0 items
   Categories    
Telescopes » (571)
 
Binoculars » (806)
 
Spotting scopes » (264)
 
Microscopes » (371)
 
Astrophotography » (405)
 
Eyepieces » (403)
 
AstroAccessories » (899)
 
Nightvision » (325)
 
Thermal imaging » (124)
 
Riflescopes » (318)
 
Laser RangeFinders » (67)
 
Flashlight » (168)
 
Magnifying glasses » (114)
 
Sports Cameras » (507)
 
Tripods » (148)
 
Optics cleaning (34)
 
Books & Magazines » (123)
 
Outdoor and hunting » (353)
 
Gadgets » (196)
 
Photo-accessories » (165)
 
Software (3)
 
Used and second hand » (6)
 
WHAT'S NEW (3)
 
   Shipping    

 

 
We ship via GLS, UPS and Rhenus Logistics. Check out EU rates HERE

   Shop in Warsaw    
WARSAW, Grochowska 8-B
Mon-Fri:10 - 17, Sat:9-13
   Shop in Chorzow    
 
CHORZÓW, Katowicka 56
Mon-Fri:10 - 17, Sat:9-13
   Information    
Contact Us
Shipping & Returns
Privacy Notice
Featured Products
Conditions of Use
   Currencies    
   Languages    
Polski English

William Optics Fluorostar 91 (aka FLT-91) RD / red OTA (SKU: T-FLT-91RD-RP33)
 
 
Availability: In stock, can be sent within 24 hours

- indicates real physical availability for immediate shipping


 
2276 EUR
price w/o VAT: 1850 EUR

William Optics Fluorostar 91 (aka FLT-91)  RD / red OTA (SKU: T-FLT-91RD-RP33)
Shop online:
W magazynie!!!

 
Shop in Warsaw:
W magazynie!!!

 
Shop in Chorzow:
Na zamówienie

CHEAP DELIVERY TO
EUROPEAN COUNTRIES
CHECK IT OUT!


 

William Optics Fluorostar 91 is an optical instrument designed for the needs of astrophotography, guaranteeing an amazing image quality free from most optical defects occurring in other telescopes of this type. Designers and engineers of William Optics, through the selection of the best materials and exemplary precision of workmanship, created a refractor of unsurpassed optical quality, as evidenced by the Strehl coefficient of> 0.95

The optical system of this refractor is an apochromatic triplet, lenses of which are made of high quality including FPL-53, produced by the Japanese company Ohara. It has a very high Abbe number of 94.49, which means that it is an extremely low dispersion material. Additional multi-layer anti-reflective coating of all lenses guarantees a sharp image with high contrast.

Due to the large diameter of the illumination disc, this refractor is an ideal device for use with cameras and SLR cameras equipped with a full-frame sensor and an APS-C matrix.

The most important features of the William Optics Fluorostar 91 refractor

• apochromatic triplet with elements made of FPL-53 glass covered with a multi-layer anti-reflective coating
• fasteners made in CNC technology
• William Optics patented Bahtin mask design with handle
• full illumination circle guaranteeing complete coverage of the full-frame matrix

Technical specifications

• optical system: ED-APO apochromatic triplet
• Objective diameter: 91 mm
• focal length: 540 mm
• lighted: f / 5.9
• lens material: including FPL-53 glass (Ohara, Japan)
• anti-reflective coating: full multi-layer coating (FMC)
• Strehl's coefficient:> 0.95
• Full illumination circle diameter: full coverage of a full frame
• Compatible sensor sizes: APS-C, full frame
• compatible photographic systems (via interchangeable T-rings): Canon EF, Nikon F, Sony E, Pentax, Micro 4/3, Fuji FX
• fokuser: 3.3 "
• type of eyepiece: rack & pinion, dual speed
• recommended flatteners: WO Flat 6A III x0.8, WO FLAT 68 III x1.0 (unique compatibility - allows for full illumination of the corners of full-format matrices)
• finder foot: Vixen
• tube length (folded): 441 mm
• tube length (extended): 510 mm
• tube weight: 4.2 kg (total weight 5.5 kg)
• tube finish: red

Kit components

• William Optics Fluorostar 91 refractor
• Vixen mounting plate
• Bahtinov's mask with its mount
• mounting bracket
• transport bag
• spacer tube

guarantee

24 months













Diagrams and distances

(above: technical drawing William Optics Fluorostar 91 (aka FLT-91) + WO 6AIII; configuration recommended for APS-C)



(above: technical drawing William Optics Fluorostar 91 (aka FLT-91) + WO P-FLAT68III; this is a new, unique functionality that allows to install such a large equalizer in this relatively small lens. for using full frame matrices and full illumination of matrix corners)

(above: technical drawing William Optics Fluorostar 91 (aka FLT-91) + extender included with the tube)

The first light (April 2021, col. Paweł T.)

The Lion triplet (NGC 3628 and surroundings), WO 91, dedicated 0.8x Flat 6A III flattener / reducer, ZWO ASI 2600 MC-P, Bortle 6.


(click to enlarge)

Identification of the area:


Reviews
 
pdf

[TELOTA91FLT-RD_WO]