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Lumicon 2" focal reducer
Ive had this focal reducer for a while and not really used it in anger, but I was interested to see what it would do with my GSO10"RC and how flat a field it would deliver. As Ive been testing quite a few scopes/flatteners/reducers/barlows on my system I chose M42 as the subject and took 9x5min exposures with my QHY10 OSC and the lumicon flattener scewed into a short Lumicon 2"-T adapter.
I was pleasantly surprised to see stars sharp to the edges but I must see if I can decrease the FL even further by increasing the chip to lens distance.
Comments welcomed.
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