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Old 21-11-2013, 12:43 PM
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Shiraz (Ray)
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Shiraz is offline
Join Date: Apr 2010
Location: ardrossan south australia
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Originally Posted by avandonk View Post

It would be quite informative if manufacturers actually published the MTF of the optic they are selling.

Don't think it's going to happen Bert. Can you imagine for example the maker of a Riccardi Honders scope publishing data that shows that it's MTF performance is roughly equivalent to that of a similar sized unobstructed scope with about 1/2 a wave of SA? That would imply that the RH is no good (which it isn't), but how would you explain why it is OK - it would be a marketing nightmare..

Agree though that MTF would make a lot more sense than the geometrical spot diagrams that seem to be carelessly misused by some makers, as shown in the original post.

Last edited by Shiraz; 21-11-2013 at 04:11 PM.
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