ubique
29-08-2023, 02:47 PM
Sharpstar 61EDPH APO & 0.82x field flattener and reducer.
I have had this scope less than a year and used it twice, it’s as new and in mint condition. These currently sell for $1299 plus $379 for the reducer / flattener Total $1678. This one comes with a hard case. Only selling due to ill health.
Manufacturers Descripton
The Sharpstar 61EDPH APO is a fast apochromatic triplet with a focal ratio of f/5.5 and a focal length of only 335mm. The objective lens includes one Extra Low Dispersion glass for a superb chromatic correction.
This telescope is light and compact and it works at its best when combined with its 0.82x field flattener and reducer, resulting in the focal length of 275mm and the focal ratio f/4.4. This corrector is specifically designed for this instrument and it delivers an exceptionally large corrected image circle of 44mm where the full frame fits completely.
The large rack and pinion 2" focuser can be rotated 360° and it has a reduction gear of 1:10 for precise focusing. The telescope has a long backfocus to allow the use of flattener/reducers and any kind of accessory. To reach the focus without the flattener/reducer, it is recommended to use a 50mm tube extension. The focuser is compatible with the ZWO EAF electronic focuser bracket.
All the lenses are fully multi-coated and the tube is internally blackened to reduce reflections and absorb stray light. The tube is made of aluminium, the rack and pinion focusing mechanism of brass and the mechanical components are engineered to provide the best rigidity, performance and durability.
This telescope works at its best with its own focal reducer and corrector delivering a fully corrected field of view for the full frame sensors. The CCD inspector results shows that across the entire full frame this telescope produces a "curvature" of only 23.1%. That means at the corner of a full frame sensor, stars are only 23.1% larger than in the center.
Price $1000 Posted to the Eastern States
Pm me if you are interested
I have had this scope less than a year and used it twice, it’s as new and in mint condition. These currently sell for $1299 plus $379 for the reducer / flattener Total $1678. This one comes with a hard case. Only selling due to ill health.
Manufacturers Descripton
The Sharpstar 61EDPH APO is a fast apochromatic triplet with a focal ratio of f/5.5 and a focal length of only 335mm. The objective lens includes one Extra Low Dispersion glass for a superb chromatic correction.
This telescope is light and compact and it works at its best when combined with its 0.82x field flattener and reducer, resulting in the focal length of 275mm and the focal ratio f/4.4. This corrector is specifically designed for this instrument and it delivers an exceptionally large corrected image circle of 44mm where the full frame fits completely.
The large rack and pinion 2" focuser can be rotated 360° and it has a reduction gear of 1:10 for precise focusing. The telescope has a long backfocus to allow the use of flattener/reducers and any kind of accessory. To reach the focus without the flattener/reducer, it is recommended to use a 50mm tube extension. The focuser is compatible with the ZWO EAF electronic focuser bracket.
All the lenses are fully multi-coated and the tube is internally blackened to reduce reflections and absorb stray light. The tube is made of aluminium, the rack and pinion focusing mechanism of brass and the mechanical components are engineered to provide the best rigidity, performance and durability.
This telescope works at its best with its own focal reducer and corrector delivering a fully corrected field of view for the full frame sensors. The CCD inspector results shows that across the entire full frame this telescope produces a "curvature" of only 23.1%. That means at the corner of a full frame sensor, stars are only 23.1% larger than in the center.
Price $1000 Posted to the Eastern States
Pm me if you are interested