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"Diffraction can be roughly calculated at 4.56/aperture (inches).
4.56/3.15= 1.45” this is an 80mm diffraction limit.
The 1600 is at 1.3”/pixel while the 183 is at 0.83”/pixel. From an optical stand point, you’re not really loosing much with the 1600 against the 183.
When you get into larger apertures seeing conditions become larger than diffraction and you also tend to get more into faster focal ratios (8” F/4-5 Newtonian for instance) which mean that you’re diffraction limit and imaging scale are further apart."
Um that means nothing to me but numbers and gobbledygook (no offense )Can you explain diffraction limits in laymans terms?
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