On Apr 20, 2012, at 11:51 PM, Richard Ward wrote: > This line of questioning might seem a little simplistic, but I have a Leica > M8 and when I use my 75mm & 90mm lenses I am having trouble focusing them > with what I would consider to be precision. My first instinct is to seek out > an eye piece magnifier, but I have the feeling that would be a hasty step > without doing some checks first. The rub is: what would I check and how would > I check it? Heck: do I have to check this or that factor -and- get a > magnifier, too? > > I am drawing blanks trying to puzzle this through on my own. Realities to consider: 1. These longer lenses are harder to focus 2. Less DOF 3. Aging eyes? 4. Cleaning external rangefinder components always helps (a little) 4. The magnifiers do help (for me) a little 5. The magnifiers dim the view and lower contrast (those damn trade-offs) Regards, George Lottermoser george@xxxxxxxxxxx http://www.imagist.com http://www.imagist.com/blog http://www.linkedin.com/in/imagist ------ Unsubscribe or change to/from Digest Mode at: http://www.lrflex.furnfeather.net/ Archives are at: //www.freelists.org/archives/leicareflex/