I used only manual focus lenses here so expect most photos to be blurry and since they're single coated, exposure is very tricky in overly bright scenes resulting in low contrast photos. (Just found the solution today at:
Takumar 50mm F1.4 low contrast at narrow F-stops - PentaxForums.com.
I didn't post-process these photos so I can see what the camera recorded from the lenses. It will take me some time to learn to perfectly focus most of the time and to compensate for bright scenes.
The 6 below are the only ones out of 179 that I think are ok. And even then, they don't come close to the Nifty Fifty's sharpness when using AF. Again, these aren't the len's fault but rather the results of my less than a month experience with them.
See the others which I consider as failures at
UP Otaku Fest 2009 (Dec. 12) - a set on Flickr
A 3.352% success rate

I'll be happy if I could increase this to at least 25%. I better practice with stray dogs, me thinks
