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Forum: Welcomes and Introductions 10-10-2018, 05:40 AM  
Any updates on the K-50 aperature block problem?
Posted By Bigrob
Replies: 17
Views: 2,227
Just a quick update. I went back into the camera last night, and was able to fix it. There is a ribbon cable (actually might be mylar or something else) that had come partially loose during the assembly/disassembly process. This cable made the electrical connections from the top plate to the camera body. Re-seating it carefully brought the camera back to life. Thanks for the offers & suggestions for a K-5 or K-3, but I think I will now stick with the K-50 for as long as it lasts. Not quite sure how long the aperture fix will last.

Maybe I should get into the camera repair business? Just kidding.

Bob
Forum: Welcomes and Introductions 10-10-2018, 05:40 AM  
Any updates on the K-50 aperature block problem?
Posted By Bigrob
Replies: 17
Views: 2,227
Just a quick update. I went back into the camera last night, and was able to fix it. There is a ribbon cable (actually might be mylar or something else) that had come partially loose during the assembly/disassembly process. This cable made the electrical connections from the top plate to the camera body. Re-seating it carefully brought the camera back to life. Thanks for the offers & suggestions for a K-5 or K-3, but I think I will now stick with the K-50 for as long as it lasts. Not quite sure how long the aperture fix will last.

Maybe I should get into the camera repair business? Just kidding.

Bob
Forum: Welcomes and Introductions 10-08-2018, 08:13 PM  
Any updates on the K-50 aperature block problem?
Posted By Bigrob
Replies: 17
Views: 2,227
Thanks Steve. Good info on reliability. I still haven’t given up on repairing the K-50. Had it taken apart again today and found a lose ribbon cable that fixed a couple of functions, but the mode dial and delete button are still not working. Also did a firmware update. Will keep trying, but thinking of a used K-5 as a reasonable way to keep with My Pentax lenses.

You may well be right about major camera makers not fixing cameras off warranty. But it does leave me little disappointed.

Time to dust off my AE-1 :-)
Forum: Welcomes and Introductions 10-06-2018, 06:40 PM  
Any updates on the K-50 aperature block problem?
Posted By Bigrob
Replies: 17
Views: 2,227
Well, I tried to make the repair as suggested in many places on this and other forums. I had no trouble slowly and carefully taking the K-50 apart. I got to the aperture controller and carefully removed and filed it a bit. Then I carefully re-assembled the camera. Unfortunately I may have fixed the aperature controller but caused other problems. Pressing the flash button puts the camera into live view. Almost any selection of the control dial shows the camera in AV mode. I can take photos, but not delete them. I am now trying to figure out where I went wrong.

I would caution others about trying to make this repair on their own. I am fairly good at repairs in general. I am good with my hands. But, it appears I have fried my camera.

I was thinking of bailing on Pentax until I realized I have some nice lenses: DA 18-135 WR and DA 55-300 WR. I would like to put off switching to another system for a few years. Would you recommend a used K-5 or K-3? I would like to keep my investment under $300 if at all possible. Something about cutting my losses. The alternative for me is to bite the bullet and buy an MFT or Fuji camera. Sorry Pentax, but not owning up to the aperature block problem is unforgivable to me. I'm happy to buy used, but rather not give any $ to Pentax at this point.

I was so happy with my K-50 until this. Oh well, life goes on.

BigRob
Forum: Welcomes and Introductions 08-20-2018, 06:30 PM  
Any updates on the K-50 aperature block problem?
Posted By Bigrob
Replies: 17
Views: 2,227
My camera is about 3 years old with 5000 shots on it. After not using the camera for a month or so I found myself at the beach during an August thunderstorm with horizon to horizon double rainbows - and I helplessly shot 30 very, very dark photos. Ugh. After some research I discovered the problem, and a “sort of” solution - I mapped the fx button to optical preview, and I exercise the aperature controller daily. But I can never count on the first shot or two working, so can’t capture anything spontaneous.

Can I really order a new aperature controller from the web and install it? Are these parts reliable/reputable? Does the “filing” solution work? Less risk than busting out the soldering iron, I guess.

Anyway, haven’t seen a post in 2018 on this (or missed it) and wonder if more info is now available.

Thanks in advance for any news or ideas.

Bob rob

---------- Post added 08-20-18 at 06:52 PM ----------



Oops, posted this in the wrong place. Sorry folks.
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