Originally posted by Metalwizards Ok, so I've been using an SMC M 50mm f1.7 for a few weeks now, and I really like the lens; when I can get the focus right the pictures are to die for. Unfortunately I am coming to the conclusion that manual focus is pretty challenging for me to use consistently and get results. Far more often than not pictures are out of focus when I was certain they were in focus and I am wanting to upgrade to something with Auto-focus.
It sort of pains me to hear of switching to autofocus referred to as an "upgrade". The problem isn't your lens....it's your focusing screen. In this era where it is taken for granted that everybody uses autofocus lenses all the time the screens are optimized for autofocus lenses. If you have ever looked through the viewfinder of a camera from the period when manual focus was your only option (because autofocus hadn't been invented yet) you no doubt saw some sort of focusing aid. The most common was a split prism in the middle of the screen, typically surrounded by a circle of micro-prisms. The rest of the screen was also typically of a higher contrast than modern screens.
Attempting manual focus on modern focusing screens is an exercise in frustration, as you have already learned. Fortunately, as has already been mentioned in this thread, you
do have an alternative. There are aftermarket screens you can install in your camera which make manual focusing a breeze. They range from low-priced models going for around $30 up to the top-of-the-line screens from
Katz-Eye.
When I bought my K20D, the first thing I did when I got home from the store was to sit down and order a Katz-Eye screen, as I use manual focus lenses almost exclusively (
almost 3,000 examples, if you're bored. I consider it such an absolutely essential item for manual focus that I actually ordered a screen for my K-5 three days
before I bought the camera.