Originally posted by Barso This could be why I've noticed a few not so sharp ones with the 50mm f1.8 and 40mm XS pancake at the indicated shutter speeds, the 16-85 seems ok though. I'll put my Canon flash on and try some tests.
Hmmm it might do better with heavier lenses like hte 16-85.
Maybe this is the reason why, a few months ago, I was doing some comparisons between my DA 35 2.4 and my Tokina 19-35 at 35mm, and the Tokina seemed sharper even comparing both at f4.5! I'm pretty sure the shutter speeds were around 1/60s or so, this was in my basement. And this was on my K-r, which is also a light weight body with that same shutter - if the K-x has this issue the K-r does too, but I haven't thought I had any issues with my K-r until I learned about these issues with the K-S1 and K-x. I use a somewhat heavy flash mounted on the K-r most of the time (AF280T), especially during more critical shoots like family events, and that's usually when I see that the pictures always seem sharp enough.
Quote: *Update: tried a few with the 50mm 1.8 between 1/60 & 1/250, with or without the flash attached the images were virtually the same,
Yes, but were they good, or were they blurry?
Quote: however the images seemed sharper in live view.
Which ones seemed sharper, with or without flash? Looking sharper in live view probably just means you were holding it more steadily, I assume when the flash was on.