Focal Reducer/Corrector Celestron F/6.3 94175 for Schmidt-Cassegrain
Carrier | Description | Estimated Delivery | ||
---|---|---|---|---|
Home delivery - International | Home delivery - International |
Monday, 30 December - Monday, 6 January |
Home delivery - International
Home delivery - International
Estimated delivery:
Monday, 30 December - Monday, 6 January
This accessory with a combination focal reducer and field corrector can be attached to all Schmidt-Cassegrain 5", 8", 9½", 11" and 14" telescopes. This four-element, f/6.3 component allows for a dual focal ratio instrument without sacrificing image quality.
It offers a wide field of view with any Schmidt-Cassegrain telescope. It reduces exposure time by a factor of 3. The results are stunning, both visually and in obtaining astrophotographs. Celestron does not offer a Schmidt-Cassegrain f/6.3 telescope. Such a design is impractical because the need for a large central obstruction would result in a marked loss of contrast. This, coupled with the impossibility of using long focal ratios on certain objects, led Celestron to develop a four-element f/6.3 reducer/corrector. The results are spectacular both visually and photographically.
Essential for deep sky photography. It reduces the focal length, widening the field while correcting it so that stars are spot-on in most of the field of view.