Hi all! I was recently comissioned my biggest job to date, a set of 50 photos that depict the work of a local FM radio. Some pictures are photojournalistic in style, others are more formal portraits. The budget was tight, so I had to work with available light in the radio station. No strobes, no flash. Just available light, since it was impossible for me to interrupt the normal flow of the radio work. Since most of my work has been used on the internet, I never really had to worry too much on image sharpness. Most *decent* images when shrinked to normal screen viewing resolution (smaller than 1800 x 1600) look flawless. BUT, now some of my work may be used for printing, so I needed to check much more carefully the images, and I'm really shocked at what I found. Many of the images have soft focus. For instance, I was looking at a series of portraits taken at something like 2 meters, just beside a well lit window, f:4.0 at 1/80s with Canon EF 50mm f:1.8 (a lens well known for its good optics). A lot of them (and I mean it) had soft focus, I don't think it's motion blur since speeds around 1/80 (which should be enough to freeze normal human movement in such a small place as a radio booth). Could it be something regarding autofocus accuracy? Right behind the main subject there was a wall, but the main subject filled something like 70% of the frame, so I guess it should still focus correctly. And with a 50mm lens (equivalent to 80mm on APS-C) working at 1/80 I guess I'm on the safe zone regarding body movement when taking the picture. I'm puzzled about this. What are your opinions? PS: Let me tell you a little about me. I've been taking pictures with some *serious* interest for the last 4 or 5 years. I started with a Canon S2IS P&S camera, moved to an EOS 400D (Rebel XTi) DSLR and since last year I've been working with film in B&W (rollei 35, EOS film body, etc). I've bought several photography books, joined a photo club, studied B&W techniques (development, printing), taken photography lessons, read, read an read more on the internet and forums, etc. Some of my pictures have been published on internet magazines, and artist's flyers. So, you get the idea regarding my background and knowledge.