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Skip to content Apertura CarbonStar 150

Askar 2.5" Full Frame 0.7x Reducer for FRA400/500 Refractors

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SKU: ASK-FRA400-7XR25
$249.00

Add Apertura Lens Pen Optics Cleaning Tool to your order

$8.99
 

Askar f/3.9 Full Frame Reducer
for FRA400 and FRA500

This focal reducer from Askar is designed for their FRA400 and FRA500 units. With a reduction factor of 0.7x, this reducer will bring the FRA400 or FRA500 to a 280 mm focal length and f/3.9 focal ratio.

This Askar full-frame reducer has a back focus of 55 mm and has an M48x0.75 thread--perfect for attaching 2" filters.

While this reducer is designed for Askar's FRA400 and FRA500 astrographs, we offer a f/3.9 reducer for the Askar FRA600, as well.

Please Note : When using this reducer with the Askar FRA500 telescope, an extra M86 to M68 adapter is needed. This adapter is included with the FRA500 telescope it is not included with this reducer. You do not need the adapter when using this reducer with the Askar FRA400 telescope.