Focus mode was AFS with focus priority. Definitely strange AF behaviour. 3rd body behaves a little better with some glass but still focus behavior can be described as erratic.
---------- Post added 08-03-16 at 01:17 AM ----------
Originally posted by Tas Is your description above what is being shown in the photo by 'gryhnd' in the sixth post down on this thread page?
https://www.pentaxforums.com/forums/190-pentax-k-1/319873-post-k-1-bugs-issue...-ricoh-18.html
If this is what you've seen, then yes I've had this problem, and I mostly experience it when pressing live view when the drive mode is set to mirror lock up; though not exclusively as I've had it occur whilst in other drove modes. When it's happened to me the mirror is down in live view instead of flipping up and it looks just like the image in that thread.
I'd certainly like to hear if you've got the same issue or something different please.
Tas
Yes that is exactly the behaviour I'm seeing - and it has happened a number times when I least wanted it to act up.
I have a video that I sent into Ricoh Canada over a week ago, so far I have not heard anything back - I've attached it to this thread in the hope that it will get some attention or some other users will pipe up with the same issue.
Please ignore my voice over (I mixed up liveview on/off and shutter [ I do know the difference!] ), I was hacked off that the camera had done this (yet again) during the wedding when I needed it and just muddle my words under pressure.
Note that this time in the video the camera resets itself immediately after pressing live view on/off. On more than one occasion it has taken a number of attempts.
---------- Post added 08-03-16 at 01:28 AM ----------
Originally posted by stevebrot Three observations:
I don't use the FocusTune software, but based on the report and the online video, I would question your methodology. My understanding is that there are supposed to be ten images per adjustment point (X-axis) such that there is a distribution of points on the Y-axis to account for system precision.
The report indicates AF-S release priority, meaning that the shutter will release regardless of whether focus has been attained. If that was truly the case, the possibility exists that you did not attain focus for one or more of the points. Focus priority would be appropriate.
I know it is not part of the LensAlign protocol, but what was your control to rule out lens defect, i.e. a lens that cannot be focused using the AF drive and/or manual ring? (I would suggest CDAF followed by manual focus with magnified live view.)
Steve
Hi Steve,
A number of things - AF focus priority should mean that the camera only releases the shutter once it has acquired lock. The camera was on a tripod, and shutter was released with remote timer delay of 3 seconds (to rule out the chances of me introducing shake).
The video from Michael Tapes is actually bang on and a slight 'erratic' nature to the graphs would be expected as the camera uses both information from off sensor PDAF AND also lookup tables to derive what it believes to be the correct focal point.
I checked each lens for defects and tested on a K3ii, there are no obvious decentering issues etc....
The FA limited 31 and 43 do exhibit pretty bad coma close to wide open and this is where I tested the lenses - I did not buy fast glass to shoot at F8 all the time
The K1 in live view could focus accurately. Note again that the 3rd body is better in many respects to the 2nd body from an AF perspective so I'm confident that it is not a glass issue.