Thanks Steve,
I wasn't sure how large the boundary was on the MI-60 I still think the "cross hairs" can help line up the target better than the standard K3 focusing screen, I guess I'll just have to fork over the money to find out after my Tamron SP AF 70-200mm F2.8 Di LD [IF] Macro comes in. Thanks again
Larry
Originally posted by stevebrot The center bracket area on the MI-60 is the same dimensions as on your stock focus screen. On both screens it traces the boundaries of the spot metering zone. While the cross hairs may help guide your eye for tracking*, there may be additional ways to tune your technique. Airport approach is not something that I do, so I am not much help on specifics.
Steve
* The "cross hairs" on the MI-60 are intended to estimate scale for close-up and macro work.