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Following assistance from Matthew a while back, I have gone orthoscopic. My eyepieces are Fujiyama in 4,5,6,12.5,18 and 25mm.
Positives are excellent light transmission; brilliant sharpness, colour and contrast;price;light weight (Helps keeping the scope balanced); and in my set, very nearly par focal.
Negative is reducing eye relief with decrease in focal length. I have adapted to the short eye relief, even though I am over 70.
Arguable points are the narrow field of view at around 45 degrees, and some softness towards the edge in the longer focal lengths. These issues are of little concern to me.
My telescope is a 120mm Skywatcher Apo at f7.5.
I do have a couple of 2" University Optics for wide field, he, he!
PS. My previous eyepieces were Pentax XW. With my current scope and observing regime, the orthos provide me with better views.
Last edited by Greenswale; 17-05-2017 at 09:03 PM.
Reason: PS added.
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