Sale! Made specifically with the Askar 108mm f/5.6 quintuplet astrograph in mind, The Askar FRA 600 f/3.9 full-frame focal reducer minimized the effective focal ratio by a factor of 0.7x. Equipped with 4 lens elements and with a backfocus of 55mm, this reducer w
Made specifically with the Askar 108mm f/5.6 quintuplet astrograph in mind, The Askar FRA 600 f/3.9 full-frame focal reducer minimized the effective focal ratio by a factor of 0.7x. Equipped with 4 lens elements and with a backfocus of 55mm, this reducer will take your f/5.6 scope to a f/3.9 system, leading to a wider field of view and a reduced exposure time. Capturing wide-field images of large celestial objects in deep space has never been easier. The threads of this reducer are made for M48X0.75 (2″) filters.
Cost: $25
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We offer free shipping on orders over $30. Please check the free - shipping eligibility at checkout.
Delivery Time:
It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.
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