Quote:
Originally Posted by xelasnave
Dropping the focal length is a confident move well done.
I got to thinking do you or others consider one could make a 2.2 fl?
Every one will probably say impossible but I wonder could you pull it off?
I mean ever one does a hand ground mirror with long fl s but a really fast mirror...It would be good if you could pull off such a feat.. the tube wont mind☺.
Then a fastar configuration?
Maybe you could send it someplace for final figuring so if its best that way it should become apparent.
I wonder ????
Alex
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I reckon it is possible!!!If you can make a mirror, then you should be able to make any f ratio!