Manufacturer: William Optics
Product number: A-F71GTII-RD

EUR 1.190,00


incl. 19 % VAT (DE)  
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  • Only 2 pcs left in stock




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William Optics Apochromatic Refractor 71 mm f/5.9 Gran Turismo

The compact yet powerful 71 mm Gran Turismo refractor with the FPL53 triplet lens stands for best chromatic correction. Due to high-quality mechanics the refractor can be used in many ways.

The Gran Turismo is ideally suited for mobile use. With a weight of only 2.2 kg, the refractor can be mounted on portable mounts such as the Skywatcher Star Adventurer or the iOptron Skyguider. Even good photo tripods are suitable for landscape observation.

The carrying handle is a real multi-functional part. It facilitates the mounting of the apo on the tripod. At the same time, the handle also offers connection possibilities for mini guide scopes or finder scopes.

Visual observation: The refractor allows magnifications of up to about 200x with color-clear images. You can use 2" and 1.25" diagonals and thus have a magnification range from 20x to 200x available. Everything is possible from large field observation to the observation of details in the moon craters.

For astrophotography and landscape photography the 0.8x Reducer and Corrector P-Flat6AIII is an optimal additional part. The corrector improves the focal ratio to f/4.72 and offers a very good correction right into the corners, even with full frame format. The working distance from the M48 thread is 55 mm. A specially calculated Bahtinov mask for precise focusing is included.


Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin
Type:APO refractor
Aperture:71 mm
Focal length:420 mm
Focal ratio:f/5.9
Lens:Air-spaced triplet design
APO element:FPL53
Tube weight:2.2 kg
Tube diameter:82 mm
Dew shield diameter:92 mm
Tube length:427 mm
Lens hoods:yes
Focuser:Dual-speed 2.5" RAP
Connection eyepiece side:1.25", 2" and M63x1 female thread
Dovetail bar:Vixen/EQ5 style
Carrying handle:yes
William Optics Gran Turismo APO
Carrying handle
Dovetail bar
Bahtinov mask
Dust protection caps
Carrying bag

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin


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Reviews

Written by Steffen Wetzel
on 2023-01-25

"Dieser APO beeindruckt durch seine (Farb-)Reinheit. Den visuellen Mauertest hat er bestens bestanden. Keine Verzeichnungen zu erkennen. Alle Fugen sind gleichmäßig und scharf zu erkennen. Ich nutze diesen vorrangig für die Astrofotografie - keine Farbfehler an den Sternen und keine Eiersterne im Randbereich. ***"

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