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Old 29-04-2012, 11:12 AM
clive milne
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clive milne is offline
 
Join Date: May 2011
Location: Freo WA
Posts: 1,443
Quote:
Originally Posted by bmitchell82 View Post
Okay now im lost!

On one hand people are saying that commercially made optics are just fine as all this PV measurements are just a load of horse whooharr

Could somebody put it in terms that are quantifiable and not in high end optician language?

My feeling is that good quality optics are worth the extra cost.
If you are using the scope as a visual instrument, then it's an absolute no brainer.
For imaging the merit function is a little different, but let me put it to you like this.... Just as an example, if you wish to get something around the 12" mark using a 16803 chip, the mount is going to cost you $10-20K, the camera a similar amount (you are up around the $20-40K mark already) The cost differential between OTA's is such that it isn't that much extra to go for something decent in the overall scheme of things.

The mechanical stability of the higher end products is probably worth more than anything else.

But you know... let's dispense with the idea that stratospheric strehl ratios quoted for instruments with large
central obstructions is anything other than an exercise in marketing hype.

Last edited by clive milne; 29-04-2012 at 11:25 AM.
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