Quote: An observation form the other thread:
QuoteOriginally posted by jhmos :
I have reproduced the fault under 1.03:
Didn't take long, 1768 shots. I also did 1000 shots yesterday without fault before I decided to upgrade from V1.02. I also decided to change to one of the prime lenses Amy used, in case it made any difference. Tried to make camera settings close to what Amy reported.
The other thing is I deliberately did is not charge the battery beforehand. It had taken over 1000 frames the day before.
Same camera as my first report, SN 4860588.
The values for Battery and temperature extracted by exiftool (version 9.54) were:
First frame of first interval session
111_0313/IMGP8029.JPG
Body Battery State : Full
Body Battery Voltage 1 : 6.76 V
Body Battery Voltage 2 : 6.54 V
Camera Temperature : 21 C
Camera Temperature 2 : 22.0 C
Camera Temperature 3 : 22.0 C
Last Frame recorded before lockup:
114_0313/IMGP9706.JPG
Body Battery State : Running Low
Body Battery Voltage 1 : 6.42 V
Body Battery Voltage 2 : 6.21 V
Camera Temperature : 27 C
Camera Temperature 2 : 31.8 C
Camera Temperature 3 : 31.8 C
I am going to repeat this with a fully charged battery each 500 shots to see if that makes any difference.
End of quote
Something I noticed right away in the data above is the battery voltage.
The Pentax Li-ion batteries usually have a 7.2v nominal value, discharged. That is 3.6v per cell. Charged they should be at atound 8v or 4v per cell.
Just for the fun of it, I went and measured a full battery out of the charger with a voltmeter and measured 7.98v (pretty close to full).
Then threw the battery in the K-3 and took a pic.
Readings are:
Camera Temperature : 22 C
Power Source : Body Battery
Body Battery State : Full
Body Battery Voltage 1 : 7.37 V
Body Battery Voltage 2 : 7.09 V.
I assume that your battery was full before your 1000 frames right?
For the records, I use Pentax batteries only and got the same readings from both. My K-3 has never had an episode of this mirror panic thing or a lockup. (knocking on wood).
Read more at:
https://www.pentaxforums.com/forums/172-pentax-k-3/254464-k3-crazy-mirror-sic...#ixzz2vrCrTtqg