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Astronomik OIII Filter 1.25"

£82.75

Quick Overview

The Astronomik O-III has a very narrow passage window around the O-III lines with 495,9nm and 500,7nm. The Astronomik O-III will allow planetary nebulae and emission nebulas to be viewed with maximum contrast.
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Details

The Astronomik O-III has a very narrow passage window around the O-III lines with 495,9nm and 500,7nm. The Astronomik O-III will allow planetary nebulae and emission nebulas to be viewed with maximum contrast. Because of the substantially narrower bandpass than the UHC filter means the OIII filter is best used visually in 8 inch and larger apertures. The filter can also be employed for Ha, H-Beta, O III tri-colour CCD imaging Also the Astronomik OIII filter coating is evaporated on a very high-quality carrier glass: The imaging capacity of your instrument is preserved completely preserved. Also the stars remain needle sharp and pinpoint. The Astronomik O-III is extremely scratch-proof and shows no signs of aging. The OIII filter uses only one piece of glass. The transmission curve of the filter is optimized for the application at optics with f/4 to f/15.

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