Apertura 0.8x Reducing Flattener for 90 mm Triplet APO Refractor
Key specifications
| Accessory type | Flattener/Reducer |
|---|---|
| Back focus | 55 mm |
| Factor | 0.8 × |
All specifications
| Compatible with | Apertura 90 mm Triplet APO refractor |
|---|
About
A 0.8x reducer/flattener for the Apertura 90 mm triplet APO that turns the f/6 scope into an f/4.8 astrograph of about 430 mm, corrected to the edges of APS-C and covering full frame; a 2" mounted filter fits under its removable knurled ring. Imaging only.
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