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09-11-2014, 04:00 PM   #16
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QuoteOriginally posted by alexbird Quote
Hi there. I just bought a used (but in mint condition, just purchased in one month less than 2000 clicks) K-3, after test tens of clicks I upgraded its firmware from 1.00 to 1.11. After that till now (only 2 weeks), I've met 4 times of failures in 2 kinds, within around 3000 clicks (most in burst mode to shot some basketball plays and my daughter) . One of them seems not ever be reported here (or I missed it in searching), so I report here in a new thread. Any suggestion will be appreciated gratefully.

This is the basic info of my K-3:
Manufacture Date : 2014:03:10
Production Code : 2.1
Internal Serial Number : 7044085
Power Source : Body Battery

1. K-3 stuck in review mode, it didn't response to any operation, even turning the power level to OFF. At last I've got to pull the battery out, and after I pushed it back and power on again, all the settings I modified during the stuck session and pictures in the buffer was lost.

This failure happened twice. Once I was checking pictures while it was storing pictures (SD led was light), after took around 10 clicks during burst mode . After I check couple of pictures, I found I couldn't move forward or zoom in out anymore. Then I tried to half push shutter or turn off the power level, nothing happened, it was still show the same picture. At last I had to pull the battery out and push again, then all the 10 pictures were disappeared.

Settings was in AF.C, all auto focus, matrix meter, H drive mode, TVs F5.6 1/250, no flash, FA*85/1.4, white Toshiba 16G class 10 SDHC card in slot1, JPG L high.

The second time happened to FA*24/2 lens in AF.S, single drive mode, similar condition. The most difference from first time is this failure also happens in single drive mode / focusing mode. At that time there was only one picture in buffer.

2. The other kind of failure I met is mirror lockup while burst mode for less than 1 second, then camera reset internal. I even didn't notice this failure, until it got wrong exposure next click, because the settings I modified was lost during internal reset. Similar settings with first failure. The info of last saved exif is:




I cann't tell whether this failure is same as the Mirror Lockup issue in this forums, since my mirror was just locked less than 1 second, and camera reset itself.

Hoping this will help to Pentax to solve it.

Best regards,
I checked my reported battery voltage on one of my pictures. I used the EXIFTool. My battery voltage was reported as:
Body Battery State: Full
Body Battery Voltage 1: 7.41 V
Body Battery Voltage 2: 7.13 V

My advice would be to recharge the battery and check if its anywhere near those levels. If not try another battery if you have it or replace it. I have never had mirror flop issues or anything else odd happen. I've had my K3 for since November last year.

09-11-2014, 06:02 PM   #17
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QuoteOriginally posted by Fauxton Quote
I checked my reported battery voltage on one of my pictures. I used the EXIFTool. My battery voltage was reported as:
Body Battery State: Full
Body Battery Voltage 1: 7.41 V
Body Battery Voltage 2: 7.13 V

My advice would be to recharge the battery and check if its anywhere near those levels. If not try another battery if you have it or replace it. I have never had mirror flop issues or anything else odd happen. I've had my K3 for since November last year.
Thanks, I'll recharge and test again.


QuoteOriginally posted by stevebrot Quote
What "Mirror Lockup" issue are you referring to? I own a K-3 and am active on this forum and am unaware of a mirror lockup issue. There is a runaway/crazy mirror issue and a system freeze issue, but no Mirror Lockup.

What you are describing sounds like a system freeze/lockup. It has been reported multiple times on this forum and has been speculated to be associated with power issues. I have had it happen a half a dozen times since I took delivery in April, all with the original battery and none with the battery at low charge. There is a note in the owner's manual that indicates static electricity as possible cause, but that would be hard to establish. It is possible that the SD card may be at fault I suppose. I am using a Lexar Platinum II 32GB UHS-I card.

I would suggest communicating with Ricoh/Pentax regarding your problems. They may be able to provide some guidance including possible options for repair if there is a service bulletin for your problem.


Steve
I mean this one:
https://www.pentaxforums.com/forums/172-pentax-k-3/254464-k3-crazy-mirror-sic...ours-here.html
Looks similar, but I'm not sure.


QuoteOriginally posted by Adam Quote
It happened once with my K-5 when I was shooting bursts in AF-C mode. Keeping your battery properly charged and avoiding third-party batteries is recommended for optimal performance.



Anything with a 10Mb/s speed or higher is considered a "high speed" card, so don't settle for that alone. Look for the UHS-I logo and see below.

A 45Mb/s write speed or higher is what I'd recommend, but the K-3 can actually take advantage of even faster UHS-I cards such as the Sandisk Extreme Pro 90Mb/s series.

Also, always format your cards in-camera rather than elsewhere just in case.
Thanks Adam. I'll change a real "high speed" card like these.
09-12-2014, 06:59 AM   #18
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QuoteOriginally posted by alexbird Quote
Looks similar, but I'm not sure.
If your mirror is not cycling continuously, you are not experiencing that problem.


Steve
09-12-2014, 07:29 PM   #19
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QuoteOriginally posted by alexbird Quote
K-3 stuck in review mode,
FWIW, I had this bug happen on me a few weeks ago.

I was shooting a car rally (battery grip attached [Auto], Sigma 70-200 HSM II, AF.C, can't remember if Pentax batteries or not, firmware up to date at the time), and after about 1 hour of shooting everything was going OK.

While there was a break in the action, I decided to review my recent shots, so hit the 'play' button and started to review my images. After quickly scanning about 20-30 images, play stopped working, refusing to display the next image, the shutter button wouldn't work, and the power switch did not turn the camera off or on. I waited for a few minutes, but the camera stayed frozen in 'play'.

Despite the fact that the camera was covered in fine dust and crud, I had to remove the grip from the camera, remove the battery from the body and replace it again in order to bring the camera back to life. Since I thought the grip may have contributed to the problem, I left it off.

Over the next few days I took many hundreds of shots at the same event without incident, but this bug was annoying and directly resulted in a sequence of missed shots.

09-12-2014, 11:24 PM   #20
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QuoteOriginally posted by rawr Quote
FWIW, I had this bug happen on me a few weeks ago.
It happened again today, while I was checking a single picture in 100% zoom and panning several times, then it froze. I waited for more than 5 minutes but nothing happened. I had to pull battery again.

I still used the same SD and battery as my first post. I've ordered a sandisk card and will test it next week.
09-13-2014, 07:22 PM   #21
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QuoteOriginally posted by rawr Quote
FWIW, I had this bug happen on me a few weeks ago.
I think it has happened to most of us and you are not the only one who has lost shots. I view it as fairly benign, but would be pleased if Ricoh could find a fix.


Steve
09-13-2014, 08:01 PM   #22
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I wish cameras like the K-3 had the ability to record crash or fault logs on the SD card. It would be a very handy feature to make bug tracking/ solving easier.

I'd be very surprised if this wasn't a feature already built into the firmware of any recent Pentax, but is simply not exposed as an accessible option to end users. I'm sure the lab techs, and firmware beta testers perhaps, work with cameras that have full debug level logging turned on.

Of course you can read some useful diagnostic data from image EXIF immediately before the crash, but it's hard to figure out from the EXIF which element of the internal systems died first and triggered the lockup.
09-14-2014, 12:12 AM   #23
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QuoteOriginally posted by rawr Quote
I wish cameras like the K-3 had the ability to record crash or fault logs on the SD card. It would be a very handy feature to make bug tracking/ solving easier.
Yes, it would be nice if all we had to do was to plug the USB into the computer and use some sort of software to pull the error stack and paste that into an e-mail to send to Pentax. OTOH, having such a feature would lead to all sorts of silly threads on Internet forums.


Steve

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