Originally posted by osv it's not just about mirror vibration, and digitalrev isn't the only site making claims about k-1 vibration issues:
"Also includes a StdRes shot at f/9 for comparison to SuperRes at f/9, which by serendipity shows Pentax K1 shutter vibration problems. This confirms a serious image quality issue (at 77mm!) already discussed in Pentax K1 Shutter Shake Evaluated at 140mm, Siemens Target.
I am dumbfounded that Pentax would use an EFC shutter in the K1 for SuperRes mode, but not offer the feature in StdRes single-shot mode. Maybe a firmware update will fix it, and maybe not. It is stupefying in its juxtaposition to the ground-breaking sophistication of pixel shift technology. How is it even possible for one camera to combine such contradictory approaches to image sharpness?"
diglloyd: PENTAX SMCP-FA FA 77mm f/1.8 Limited Aperture Series: Mosaic (Pentax K1 SuperRes) The shutter shake is there OSV, it's just that they refuse to see it. It has to be there, without an EFC shutter it can not be banished, no matter how good the shutter.
The K1 is nice but could do with a menu option for EFC in live view, heck, we know they can do it, it's in the pixel shift mode.
Just like my 645z, my K1 will experience exactly the same issues with shutter shake, on lenses over 90mm with shutter speeds between roughly 1/20 and 1/200, the danger zone for any lens with a normal shutter.
All I need now is a K1v with an EVF, no mirror, on sensor AF and full time life view with EFC shutter. Oh how good that would be.
---------- Post added 05-28-16 at 04:45 AM ----------
Originally posted by Wheatfield Shucks.
My past experience with Pentax SLRs is that if they are going to have a bounce problem, it is going to be in the range of 1/15 to 1/60th of a second. This is something that has held true for me from the 1980s and the Super Program film camera (more bounces than the Pump Roadhouse on a Saturday night) to the K5, which I had some bounce problems with in that speed range.
I've used the K1 both on and off the tripod at a variety of speeds within this range, and have seen ZERO evidence of either mirror or shutter induced vibration.
I'm not ruling out the possibility, but at this point, I would ask the OP, who apparently now owns a K1, to post some images showing that his camera has a vibration problem.
I think you would find that it would be there, it kinda has to be there (shutter shock that is) because of the fact that there is a shutter and no EFC. It might be small, but it will be there. Will it ruin a photo, maybe not, but there might be some combinations of FL and shutter speed and orientation that will cause it to show its ugly head.
---------- Post added 05-28-16 at 04:47 AM ----------
I must say though, after using the K1 for a bit, although the shutter shake will be there, I doubt it will ruin a photo (I say doubt because I have yet to test a 70-200 lens or longer to see)