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Central obstruction is 55%, but still smaller than similar designs, that simply can't compete under any point of view. The visual contrast is very good, thanks also to the special ultra-dark paints we use. The corrector group is very close to the focal plane, so chromatic aberration is undetectable. Fully corrected and illuminated field is 80mm and backfocus extraction is 145mm.
- Officina Stellare RiFast 500 f3.8
- ESATTO 4" robotic microfocuser
- Adapter ESATTO 4" for Officina Stellare ProRC, RiDK, RiFAst
- TC-01 electronic
- 2 Losmandy bars (one bottom and one top)
|Optical Design||Catadioptric with corrector|
|Focal Length (mm)||1900mm|
|Field flattener/corrector||Incluso e non rimovibile|