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Skywatcher Evostar Field Flattener / Reducer 80ED 0.85x

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Skywatcher
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Overview The Skywatcher Evostar Field Flattener / Reducer 80ED 0.85x is designed to reduce the focal ratio of the Evostar 80ED by a factor of 0.85x. It takes the base f-ratio, f/7.5, to f/6.375 which not only expands the field of view but decreases the exposure time. It also functions as a field flattener, working to eliminate elongated stars at the edges of the image. moreover, this field flattener and reducer has a male M48 thread and can be crewed directly onto the focuser of the Evostar.   About Sky-Watcher Contemporary telescope-making has advanced the simple optical designs early scopes to revolutionary, state of the art. The Sky-Watcher company believes Telescopes of quality make should no longer be expensive, but accessible to everyone. Sky-Watcher philosophy has always been to bring the vast wonders of the skies within reasonable reach of anyone with enough curiosity and courage to look up and imagine. Sky-Watcher scopes come in a large range of observational applications - from 10"Dobsonians to spotting scopes for land use.  Product Code: SKW-SWA-BDFF80ED
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SKW-SWA-BDFF80ED
OUR PRICE $499.95

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    Overview

    The Skywatcher Evostar Field Flattener / Reducer 80ED 0.85x is designed to reduce the focal ratio of the Evostar 80ED by a factor of 0.85x. It takes the base f-ratio, f/7.5, to f/6.375 which not only expands the field of view but decreases the exposure time. It also functions as a field flattener, working to eliminate elongated stars at the edges of the image. moreover, this field flattener and reducer has a male M48 thread and can be crewed directly onto the focuser of the Evostar.

     

    About Sky-Watcher

    Contemporary telescope-making has advanced the simple optical designs early scopes to revolutionary, state of the art. The Sky-Watcher company believes Telescopes of quality make should no longer be expensive, but accessible to everyone. Sky-Watcher philosophy has always been to bring the vast wonders of the skies within reasonable reach of anyone with enough curiosity and courage to look up and imagine. Sky-Watcher scopes come in a large range of observational applications - from 10"Dobsonians to spotting scopes for land use. 

    Product Code: SKW-SWA-BDFF80ED

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