FRA400C 0.7x Full-Frame Reducer
Category： Askar
Specific FRA400C 0.7x full-frame reducer.
Retail Price:
$
249
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0
The current price excludes Tariffs and VAT. You'll be notified via email of the estimated customs charges after purchase, and you will need to pay separately.
Product introduction
Specially designed for the FRA400C, this 0.7x reducer adopts a triplet lens design, it can reduce the overall focal length to 280mm and the focal ratio to F3.9 while providing a flat-field correction. When used with the reducer, the FRA400C supports full-frame imaging and the back focus is a standard 55mm.
The shorter focal ratio enables the telescope to achieve a wider field of view and faster exposure times, making it ideal for capturing large nebulae, star clusters, as well as faint and fast-moving celestial objects.
The FRA400C reducer features an M48×0.75 rear-end adapter and has a built-in 2-inch filter thread for convenient filter attachment.
Specifications
0.7x Reducer Parameters | ||
（After attaching）FRA400C Focal length | 280mm | |
（After attaching）FRA400C Focal ratio | f/3.9 | |
Lens Number | Triplet design | |
Back Focus | 55mm（from the base of M48 male thread） | |
Weight | 0.46kg | |
Rear-end thread type | M48×0.75 (M48×0.75 filter thread inside) | |
0.7x Reducer Size Diagram |
0.7x Reducer Installation |
Spot Diagram |
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