Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-31-2016, 06:13 AM   #1
New Member




Join Date: Aug 2016
Posts: 3
Transient issue with viewfinder not matching image

Hi folks, wasn't sure whether to put this here or in troubleshooting so hope it's OK here... New to the forum too, so greetings to all!

I have had my trusty K-50, my first DSLR, for just over 2 years. Shutter count around 18500. Whilst out on a photo walk recently, I had a brief issue with it which I haven't had before.

All of a sudden the viewfinder image was shifted up compared to the actual image captured. This happened several times, until the camera froze up. On/off did nothing so had to take battery out. When I turned it back on, it was back to normal.

It was a hot day, around 90 degrees, but have been out several times a week this summer in these temps and not encountered this problem before. Plus it is within stated operating temperatures.

Has anyone else encountered this issue? Is it the beginning of the end? Really hope not...

(I have also had one occasion before where aperture change and AF didn't work and image super dark, not had it since though so hoping these are both one offs...)

Thanks!



08-31-2016, 06:39 AM - 1 Like   #2
Senior Member
dwinnert's Avatar

Join Date: May 2007
Posts: 107
I'm just guessing, but it sounds like the mirror did not fully seat back in its ready position, causing the image viewed to be shifted.
08-31-2016, 06:44 AM   #3
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,840
QuoteOriginally posted by Lillibet Quote
Has anyone else encountered this issue? Is it the beginning of the end? Really hope not...
Welcome to the Pentax Forums!

My friend's K-50 failed in this manner. The mirror was not properly returning to its resting position and there were also problems with controlling the aperture. The fix required a trip to the service center.


Steve
08-31-2016, 07:25 AM   #4
New Member




Join Date: Aug 2016
Posts: 3
Original Poster
Uh oh 😢 Looks like I'd better get saving then... Fingers crossed its got a bit of life left in it yet- Love that little camera!

Thanks both!



08-31-2016, 01:10 PM   #5
Site Supporter




Join Date: Apr 2016
Location: Toronto
Photos: Gallery
Posts: 94
My k-50's viewfinder is a bit out of alignment with the actual image. This isn't sudden or intermittent, and it wasn't always this way. At first I blamed myself for composition errors. Then I shot very carefully and reviewed the images immediately after shooting them and realized that there is a misalignment. I've been compensating by using focus lock and re-framing the picture. The misalignment is consistent and doesn't seem to affect the function of the camera. I've had the camera for about 6 months now. I've had one dark frame and one shutter seems to stick half way - though the latter was likely due to an error on my part.
09-01-2016, 09:36 AM   #6
New Member




Join Date: Aug 2016
Posts: 3
Original Poster
Aah that actually sounds familiar about being out of alignment. I had wondered if it was off a bit over the last year, as have been occasions where the horizons have come out crooked, or something's been cut off slightly more than I recalled composing. But I just put it down to me holding my head crooked! (I've been told I do this by opticians). Wonder if it's related to the sudden viewfinder error then too...

Overall it's not looking too positive really 😢 Oh well, if it died tomorrow I'd certainly have got my money's worth from it, and it still produces great images regardless. Will just have to view it as an opportunity to upgrade if and when it does go!

09-02-2016, 08:03 AM   #7
Pentaxian
The Squirrel Mafia's Avatar

Join Date: Jan 2015
Posts: 785
This has happened a couple of times on my black & red K-50. It's basically the same camera as the K-30. I'm thinking that it has something to do with the SR not moving the image sensor back into place or just getting stuck. Like I'll shoot a picture & I know exactly where I had framed it & BAM! You look at the LCD screen & things are cut off. What the heck? So I pull out the battery, turn the on/off switch a few times, put the batter back in, & shoot again. Problem solved.

Both of them have also frozen on me a few times. I've had to pull the battery out to get them to unfreeze. I guess it's "normal" for these cameras even though it shouldn't be. They both have the latest firmware too. I've had them for about 1 year & 8 months. Outside of those rare occasions, they have both worked very well.

My old 10MP CCD Sony A200 DSLR was 100% rock solid reliable & I got about 90,000 images out of it. Never froze, never had IBIS issues, & worked perfectly for the 6 years that I used it. Then again, we are talking about a very large company with deeper pockets that made that camera. From reading a lot of reviews & comments about Pentax, it seems like they don't really spend time on their lower models & QC can vary at times. Their cameras tend to work well for the most part, though. One thing is for sure. Every camera company has their issues. Nikon & Canon are too expensive. Sony is really pushing the E-mount & ignoring the A-mount. Pentax will suffer from QC at times.

I really do enjoy using my K-50 & I would like to stay with Pentax. As far as I know, the K-3II hasn't had any issues & the K-3 got a few issues resolved with firmware. They're both pretty rock solid. I'm thinking of replacing my K-50 bodies with a K-3II later this year or waiting to see what the next APS-C flagship will bring. I also don't have a problem with switching to another camera brand if push came to shove. I'd probably move to Nikon if I had to.
04-26-2017, 04:51 PM   #8
New Member




Join Date: Dec 2015
Posts: 3
I'm noticing that my K50 has a similar issue. I actually noticed it when I first got the camera and was shooting El Capitan in Yosemite, but I figured since I had never used a DSLR, that it was user error! In the viewfinder, I was framing El Capitan with a good amount of sky visible above it's highest point. However, the actual captured image was cutting off the top. I simply adjusted my aim, putting a lot more sky in the viewfinder, and that worked. I was just noticing the issue again as what I saw in the top of the viewfinder was getting cut off in the photo. I compared to my husband's K50 and his is fine. When I attempt to center something using Live View, it is just right. So, I'm just wondering if anybody else has had or heard of this issue and if there is a solution? I've turned it on and off, and even switched to a fresh battery with no improvement. I purchased it from Adorama 10/2016, so probably out of warranty.

04-26-2017, 06:25 PM   #9
Pentaxian
The Squirrel Mafia's Avatar

Join Date: Jan 2015
Posts: 785
^ Maye the SR in your K-50 is stuck. There is a section in the main menu where it has a Dust Removal option. It's under the "wrench" option. Click on the Dust Removal so that the sensor shakes. That might set it back to normal.
04-26-2017, 06:58 PM   #10
Site Supporter




Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 2,878
QuoteOriginally posted by The Squirrel Mafia Quote
^ Maye the SR in your K-50 is stuck. There is a section in the main menu where it has a Dust Removal option. It's under the "wrench" option. Click on the Dust Removal so that the sensor shakes. That might set it back to normal.
Love2kwilt's experience, having this issue when using OVF but not when using LV, would say problem is with mirror, not with SR, especially if other users observe the same thing.
04-26-2017, 07:43 PM   #11
Loyal Site Supporter




Join Date: Apr 2008
Location: Upstate NY, USA
Posts: 256
QuoteOriginally posted by reh321 Quote
having this issue when using OVF but not when using LV, would say problem is with mirror, not with SR
If the sensor is not being correctly positioned by the Shake Reduction system, I would still expect the image in Live View to match the photo, as the same sensor is being used for both framing and taking the picture. The user would not notice that the camera is actually pointing slightly off center when taking the photo.

I have not studied the optical path fully but I suspect that if the mirror was not returning correctly, the phase detect auto focus would also be off when taking a photo with the Optical View Finder. Perhaps this is not significant enough to be noticed under normal circumstances?
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
hope, image, issue, issue with viewfinder, k-30, k-50, pentax k30, pentax k50, times, viewfinder
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Issue with 16 bit Pixel Shift Stacked image btnapa Pentax K-1 37 06-08-2016 04:46 PM
f-stop & ss not matching using flash amp Flashes, Lighting, and Studio 8 12-17-2015 05:44 PM
Screen not matching Sensor focus plane tempelorg Pentax DSLR Discussion 9 06-20-2015 05:05 AM
issue with EV meter bar, but only in viewfinder sholtzma Pentax K-5 3 05-29-2015 12:25 PM
Slide Duplication: Image is tack sharp in viewfinder but captured image is not. MD Optofonik Film Processing, Scanning, and Darkroom 15 05-12-2014 05:18 PM



All times are GMT -7. The time now is 03:39 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top