I would like to use a coma-corrector, for visual, on my f4.5 newton. Due to its price and performance, i find the mpcc mklll very interesting. So my question is: Is it possible to make the hyperion eyepieces parfocal - so i only have to adjust the coma corrector once ? I would like to use the 24mm, 13mm and 5mm hyperions. Regards Asbjørn Skou
Most of the Hyperion eyepieces are almost parfocal, although some differ a little bit - you can find the dimensions in the Download-tab of the product websites of the eyepieces. You can make them parfocal with a either a self-made, 3d-printed spacer ring which fits around the 1.25"-nosepiece, or with our Stop Ring 1¼" (T-2 part #30) # 1905131.
If you should need a longer 1.25" nosepiece, there is also Baader 1¼" - 31.8mm nosepiece extension with 1¼" filter thread on both sides (T-2 part #05) # 1905130 - but for the few millimeter of difference with the Hyperions, it should not be necessary.
Answer by: Baader Web Team (Admin) on Jan 12, 2022 1:32:00 PM
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