Quote:
Originally Posted by anj026
My impression is that there is no harm in using a refractor with exit pupils larger then 7mm if you choose to do so.
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You will not come to physical harm if you choose to do so
but it is absolutely false to make a claim that you will not lose resolution by using a too large exit pupil , particularly for dim DSO objects as outlined below in my last post . To claim that it is not so in order to encourage people to buy more long focal length eyepieces that are not matched to their scope and eyes is an exercise in selling more eyepieces ? ...
If anyone doesn't understand the physiology of what I am pointing out then please ask for further clarification .