Focal Reducers
Hi there
my recent aquisition of a Mak pro 150 (1800x150) on a HEQ5 goto is quite impressive. There is one thing i dont understand. When a camera (dslr) is mounted, why is there a massive vignette on the images? it looks sweet when i look through it..
is this something to do with chip size v adapter size?
suggestions have brought forward a focal reducer. what is it and why would i want to reduce my nice 1800mm to say 1200?
if that is what i need, what would be a sufficient reduction?
Also, what eyepeice would be needed? or is this an image dependant question?
TIA.
Kyle
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