Originally posted by ivanvernon Perhaps I am incorrect on this. I was only parroting what Adam told me when I asked this question.
Originally posted by ffking I've been a little critical of the FA*400mm f/5.6 on digital - it felt at times like it couldn't handle the pixel density of the K-3, but I'm wondering if slightly higher ISOs are the way to go - I was more pleased by the sharpness of this sparrowhawk visiting our garden in rather poor light, hence ISO1000, than with some of my other shots at lower ISOs.It might be something entirely else, but worth exploring.
Originally posted by stihlmania My experience with shake reduction on a telephoto, my A*400 f2.8 only. I have tried various "lens" settings on my K-3II with this lens. With and without the 1.4-XL and the AF1.7. All on a rather heavy and stable Bogan tripod, with and without SR enabled. Always with a wired remote. So far SR seems to produce better results, but not always. Operator error is usually the case there! Last night I spent about 3 hours reviewing many SR discussions and recommendations, something I should do more often. There seems to be no set in concrete answer for older telephotos and SR so I just experiment with my equipment to see what works best for me. Against the advice of more experienced users and Ricoh/Pentax, I have SR on most of the time with my tripod. I recently, for the first time, tried the 400 on my equally beefy and sturdy Bogan monopod. That I may not try much, the lens is like a nose heavy 13 pound weight on a stick, even though I have a camera strap and a lens strap [attached to the lugs] for safety! I was overly careful, which was not enjoyable! But the SR worked well on the monopod with the lens and AF 1.7 length set at 550. Next time I dare to try the monopod I will set the lens length at 700. This is my experience, others will no doubt vary. On a side note, I had to decide what my first shot with my new camera was.... Haha!
It's been my recent experience, shooting at focal lengths up to 700mm, that as long as your hands are on the camera - even when mounted on a tripod - SR ON is the way to go.
Having just migrated from a K-5 II (16 MP, AA filter) to a K-3 II (24 MP, no filter) I've found I need to increase shutter speed by 1/2 stop or so when photographing critters. When photographing something perfectly static, like a large tree, I can keep the shutter speed as low on my K-3 II as I did on the K-5 II, but once the birds are involved, the higher-specified camera is more demanding. Just my .02