Originally posted by kengoh Thanks guys for the nice comments.
Another shot from K1 + kit lens DAL 55-300 @300mm wide open F5.8
I'm coming to the conclusion that the 55-300 is a bit under-rated. It is not perfect, but when you attain focus and good exposure, the results are really quite good. My project to come soon is to compare static images from the M 400/5.6 and the 300/5.6 at 300, cropping the 300 to 400 field of view. Now that I am using the K-3 that replaced my K10, I am finding that cropped images hold up much better. That might have something to do with 24 Mpx vs 10 Mpx
I do know that the 55-300 is much faster to work with and it has fewer exposure errors using matrix. The focus throw on the M 400 is the worst problem I am finding. It takes a lot of cranking to change focus. I am not having problems attaining good focus with the stock K-3 focus screen, using the O-ME53 magnifier.
Exposure is a matter of green button settings. I am finding that the exposure is rather more consistent shooting at -2 EV and the CA is pretty well under control at f/11. I do have to make sure the meter is set to matrix (which defaults to center weighted). Spot metering is too reliant on where I have the lens aimed and can throw the exposure all over the map. The EV setting is not recorded in the EXIF for Manual Exposure, unfortunately.