At the f/stop you are choosing, you will be entirely diffraction limited. Even a reasonable piece of Coke (TM) bottle glass would work just as good as the best NASA optics if it weren't for the green cast. (Just a little hyperboli there, but not much...) Get f/2 or better optics if you want to focus better.
Regards, Bob... -------------------- "Let us contemplate our forefathers, and posterity, and resolve to maintain the rights bequeathed to us from the former, for the sake of the latter. The necessity of the times, more than ever, calls for our utmost circumspection, deliberation, fortitude, and perseverance. Let us remember that 'if we suffer tamely a lawless attack upon our liberty, we encourage it, and involve others in our doom.' It is a very serious consideration that millions yet unborn may be the miserable sharers of the event." - Samuel Adams, 1771 From: "Leon Altoff" <[EMAIL PROTECTED]> > On Mon, 28 Jan 2002 14:11:48 -0800, Bob Blakely wrote: > > >Have you considered divesting yourself if the converter entirely and using a 24 or >28mm > >lens backwards? > > I did play with this at one point but found that it was a bit dark in > the viewfinder. I might try it again before I buy a new lens. But > that brings up the question which 28mm? > > Leon - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
