Are there any replaceable focusing screens available?
In addition to the standard type, two types of focusing screen are available (types L, and M). Type L: This screen has a grid pattern to be used to check the balance or level of composition. Type M: This screen will be handy for photographers who use manual focus often, because a focus peak or blur is more visible on this screen than on the standard type. This type is suitable for using F2.8 or brighter lenses. (If you use this screen with a darker lens than F2.8, the finder becomes dark.) Note: When you purchase or replace a focusing screen, please contact a Sony dealer, or a Sony help desk that specializes in digital single-lens reflex cameras.
