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The 20mm Brandon eyepiece has about 17mm eye relief. The apparent field of view (AFOV) is about 45 degrees. It weighs 2.9 oz (82 grams.) It is available either with eyecup or flat top. Either style is $279 each. Questar version $299
The 20mm Brandon eyepiece has about 17mm eye relief. The apparent field of view (AFOV) is about 45 degrees. It weighs 2.9 oz (82 grams.) It is available either with eyecup or flat top. Either style is $279 each. Questar version $299