Originally posted by aurele Check the settings to make sure you don't have something like focus priority on shutter release (body can prevent shutter activation if focus is not done).
I tried that whe I was trying to do some 'trouble shooting' did not change a thing.
---------- Post added 12-16-18 at 10:24 ----------
Originally posted by landofcourtness On my K-1 I flip the 'mode' on the dial (camera to video picture)... if that makes sense. I don't think there's another way to activate video (?). On my K-5 you rotate the mode dial to video, and it's a little bit more reliable to start/stop. In terms of circumstances... it does appear to be start easier during better lighting, but I think this is more because it's easier to find focus (which feels lika a requirement before a video can start). I've tried it with different lenses, and the performances is generally the same. I normally use it with a Tamron 24-70 2.8. Sigma 35 1.4, since these are normally what I have on... For more Telephoto, like Tam 70-200 2.8 (during events), it rarely starts the video. It will just search through the focusing, but never settling on a focus and never beginning... if that makes sense?
Currently with my Education Program, and I'll try these once I get a chance. Thanks to all those who give, continue to give feedback
I think that there is some problem with your K-1. do check that is is updated to latest firmware. I'll check my DFA*70-200 if it changes a thing. I'll actually do a little video today with it anyway.
thing to try. Set camera to M mode, switch to video. Set smallest aperture or atleast f 2.8. and shutter around 100 th of a second. Mine works well higher and lower. try it with MF and AF with focus close or exactly at bright good contrast object, both the same. And if it won't start, then there is problem with camera. Yesterday I did try with DFA 15-30, DA*55 and FA 77. I'm shooting video anyway these days for my project, so I'm happy to try it out too..
oh and I'm doing this at my workshop, which I can make dim or bright. I'll try some video out with snow(little or no contrast, same with sky ect.). if I could make my camera to hunt more to see if it will begin video, when it struggles.