Mamiya 645 PRO TL - Manual (Page 25)

Focusing
While looking through the viewfinder,
turn the lens Focusing Ring until the
most important subject part appears
sharp and clear.
Focusing with the Standard Focusing Screen N Type E
1. The camera comes equipped with
a bright, Type E, Rangefinder/Micro-
prism Focusing Screen. It features a
center, split-image rangefinder spot
and the subject is in sharp focus
when the split images combine into
one.
2. The microprism ring around the
split-image center further facilitates
focusing. The microprisms disappear
only when the subject is in sharp
focus.
3. The rest of the ground glass area
can also be used for focusing.
* I n t e r c h a n g e a b l e F o c u s i n g
Screens
There are five additional focusing
screens available for specialized
applications. They are easy to
interchange and come with in-
structions.