Hi Matt
You are not reducing the focal length. Remember that in the manufactoring process the mirror was ground and figured to have a focal lenght of 1000mm (f5). It does not matter were in the tube the mirrors is placed the focal lenght will always be an 1000mm (f5)
By moving the mirror foward you a shifting the focal plane.
Anthony
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Originally Posted by matt
Hey Anthony
Thanks for the suggestion but I think I'd rather not reduce the focal length of what is already a fast scope (f5 - 1000mm), even by such a small amount.
I think a speedy refund will be the best solution and I'll be a little wiser for the experience  |