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William Optics Gran Turismo 81 mm f/5.9 Apo with FPL53 Triplet Lens

Name: William Optics Gran Turismo 81 mm f/5.9 Apo with FPL53 Triplet Lens
Brand: William Optics
SKU: A-F81GTIVRD
Price: 1554 EUR

The William Optics GT 81 apo stands for optimal chromatic correction and best possible contrast - a powerful travel telescope for observation and photography.

Aperture 81 mm

Focal length 480 mm

Focal ratio f/5.9

Multicoated, air-spaced FPL53 triplet lens

2.5" RAP focuser with M63x1 connection thread, as well as 2" and 1.25"

Multifunction handle with holder for guide scopes

Bahtinov mask integrated

Variable carrier bag

Vixen/EQ5 style dovetail bar

Manufacturer: William Optics

Product number: A-F81GTIVRD

EUR 1.554,00RRP EUR 1.990,00you save 21.9% (EUR 436,00)

incl. 19 % VAT (DE)

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excl. 6.95 € shipping costs (DE)

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William Optics Gran Turismo 81 mm f/5.9 Apo with FPL53 Triplet Lens

The William Optics GT 81 apo stands for optimal chromatic correction and best possible contrast - a powerful travel telescope for observation and photography.

Aperture 81 mm

Focal length 480 mm

Focal ratio f/5.9

Multicoated, air-spaced FPL53 triplet lens

2.5" RAP focuser with M63x1 connection thread, as well as 2" and 1.25"

Multifunction handle with holder for guide scopes

Bahtinov mask integrated

Variable carrier bag

Vixen/EQ5 style dovetail bar

Details..
Technical data..
In the box..
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William Optics Apochromatic Refractor 81 mm f/5.9 Gran Turismo

The compact yet powerful 81 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 3.5 kg, the refractor can be mounted on portable mounts such as the EQ5 Synscan or even on 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 230x with color-clear images. You can use 2" and 1.25" diagonals and thus have a magnification range from 20x to 230x 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 aperture 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:	81 mm
Focal length:	480 mm
Focal ratio:	f/5.9
Lens:	Air-spaced triplet design
APO element:	FPL53
Tube weight:	3.5 kg
Tube length:	460 mm
Lens hoods:	yes
Focuser:	Dual-speed 2.5" RAP
Connection eyepiece side:	1.25", 2" and M63x1 female thread
Connection OTA / focuser:	M86x1 female thread in OTA
Dovetail bar:	Vixen/EQ5 style
Carrying handle:	yes