While there are exceptions, most lenses give their best optical performance
about two stops below their fully open setting. That's where you'll usually
get the best balance between overall resolution and minimum off-axis
aberrations.
Chris
*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
______________________________________________
Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
