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25 inch design also offers the shortest possible backfocus
Dark nebulae can be some of the most demanding astronomical objects to photograph because they rely on tiny differences in background brightness rather than strong emission
the dark current noise is only 0
With a 76mm aperture and a focal length of 418mm
Fitted to any standard camera tripod and also comes with soft carrying case
Optolong OIII 3nm Filter Size:36mm Glass Only 25 inch design also offersOptolong OIII 3nm Ultra Narrow Band Deep Sky Imaging Filter for CCD CMOS Astro Photography Here below you will find a description of all three types of filters for your information as a full bundle is also available, however this product listing is only for the Optolong 3nm OIII filter. Please note, if you buy the full HSO bundle you will save some money in comparison to the price of the individual items. General Product Description for All Versions
US$ 50.00
US$ 90.00
US$ 25.00
US$ 97.30
US$ 183.00
US$ 929.00
US$ 143.00
