Tag : flattener

Sky-watcher M48 Field Flattener For Esprit 100 by Sky-Watcher

Sky-Watcher M48 Field Flattener for Esprit 100Sky-watcher M48 Field Flattener For Esprit 100
Correct the field curvature of the Esprit 100 with this Sky-Watcher M48 Field Flattener. It offers a clear and wide aperture to ensure minimum halation while increasing the refractor?s imaging circle to 40 mm. An effective addition to the triplet refractor, this doublet field flattener uses a precision thread to keep the lens groups aligned to the optical axis and perpendicular to the image.

Price: £205.00

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Sky-watcher Esprit-120ed Professional Triplet Refractor Ota – Without Flattener by Sky-Watcher

Sky-Watcher ESPRIT-120ED Professional Triplet Refractor OTA - without FlattenerSky-watcher Esprit-120ed Professional Triplet Refractor Ota – Without Flattener
The Sky-Watcher ESPRIT-120ED Professional Triplet Refractor OTA is a precision-crafted telescope featuring a premium-quality triplet lens design that delivers breathtakingly sharp and clear views of celestial wonders. With a generous 120 mm aperture and ED (Extra-low Dispersion) glass, chromatic aberrations are virtually eliminated, providing true-colour images with exceptional contrast.

Price: £2879.00

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Sky-watcher 0.77 Reducer / Flattener For Esprit-150ed by Sky-Watcher

Sky-Watcher 0.77 Reducer / Flattener for Esprit-150EDSky-watcher 0.77 Reducer / Flattener For Esprit-150ed
As a high-powered stargazing tool, this 0.77 Reducer / Flattener from Sky-Watcher is a must-have for astrophotographers utilising the Esprit-150ED Professional Super APO Triplet Refractor OTA. In short, the field flattener accurately corrects the inherent spherical aberration of curved lenses. Without such a tool, image quality is lessened as the frame appears distorted at the edges of the field of view. When used as a focal reducer, you are afforded a key reduction in the focal ratio of the scope. By doing so, you are left with a wider field of view with shortened exposure time, allowing for more images to be captured in a shorter amount of time without affecting their overall quality.

Price: £349.00

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