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RedCat 71 APO 350mm f/4.9

ر.ع.692.000

● 71mm f/4.9 Astrograph.

● FPL-53 glass for colour free apochromatic performance.

● 4 elements in 3 groups (2-1-1- configuration; new, unique, patented design – not a conventional objective/flattener/reducer design).

● Covers 45mm full frame imaging circle.

● Precise helical focusing and camera rotation; includes a 48mm make thread that accepts a wide T-ring.

● Includes mounting rings, 21cm long Red Vixen style dovetail and Cat saddle.

● Weight =  6.2lbs / 2.8kg (OTA only);  8.2lbs /  3.7kg (OTA with ring, dovetail and saddle).

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SKU: ASC10238 Categories: , , ,
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The all-new RedCat 71 APO

The WO Cat71 is a 71-mm f/4.9 refractor using a Petzval design with a doublet front element incorporating FPL-53 glass, plus a single central element and a single rear lens. By this design, the Redcat 71 APO Optical tube assembly (OTA) provides a flat image plane without any additional flattener and the image circle is over 45mm. Redcat71 is designed primarily for imaging, making it an astrograph.

This scope provides an excellent colour correction and pinpoint stars at the very edge of a 45mm image circle.

If you want to take images with the best quality, this beautiful and powerful telescope is what you want.

 

redcat71-01
redcat71-01

 

[A] M48 Dust Cap/Thread

[B] Tilt Adapter

[C] Camera Angle Rotator

[D] Rotator Tension Knob

[E] Saddle Handlebar (with two M4 thumb screws)

[F] Helical Focuser with 2GT Gear Ring

[G] Arca Swiss/Vixen Plate

[H] Mounting Rings

[I] Due Shield with Focus Tension Ring

[J] Super Bright Bahtinov Mask

 

 

Key Features

● 71mm f/4.9 Astrograph.

● FPL-53 glass for colour free apochromatic performance.

● 4 elements in 3 groups (2-1-1- configuration; new, unique, patented design – not a conventional objective/flattener/reducer design).

● Covers 45mm full frame imaging circle.

● Precise helical focusing and camera rotation; includes a 48mm make thread that accepts a wide T-ring.

● Includes mounting rings, 21cm long Red Vixen style dovetail and Cat saddle.

● Weight =  6.2lbs / 2.8kg (OTA only);  8.2lbs /  3.7kg (OTA with ring, dovetail and saddle).

Weight6.5 kg
Dimensions40 × 32 × 21 cm

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Test

Aperture71mm (2.75″)
Corrected Image Circle45mm
Dawes Limit1.63 arcseconds
Focal Length350 mm
Focal Ratiof/4.9
Highest Magnification142x
Light Gathering Power103x
Optical DesignPetzval
Tube Length435mm
Tube Weight6.2 lb

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