chhayanat,
All shots were with the K10 on a tripod (of course) with shake reduction turned off. I always use a Pentax cable release when I use this lens. I have a KatzEye focusing screen and I doubt I would be able to get some of these shots without it. I found focusing manually with the original screen very difficult.
I use the K10 and shoot RAW and jpeg. All images uploaded into Photoshop and I don't have the metadata.
Some but not all were sharpened but I can't recall which. Trough trial and error I found shooting on a bright day that ISO 100 and an f-stop somewhere between f 11 and f22 gives good results. Basically I follow the old sunny sixteen rule.
http://en.wikipedia.org/wiki/Sunny_16
I just took a look at the lens and it was set at f22 for the first Robin shot. I seldom shoot wide open as the DOF is too shallow for most nature shots. Shutter speed varies from a low of 1/50 sec to 1/125th sec on average. I normally start in this range and take a look at the result. If I'm not satisfied I adjust speed or f stop as lighting conditions dictate. It is a lot of trial and error but these settings should get you in the ballpark.
Hope this helps. Looking forward to seeing some of your shots soon. There don't seem to be many of us in the M 400 Club. I’ve only had this lens a short while but it looks like a keeper.
Tom G
Last edited by 8540tomg; 03-17-2009 at 04:45 AM.
Reason: typo