Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version 81 Likes Search this Thread
05-18-2018, 11:18 AM   #91
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
QuoteOriginally posted by Auzzie-Phoenix Quote
Don't know about specific cases, but in my case I used the mechanism all the time with manual lenses. It failed before 4500 shots, just outside of the 2 year warranty.
What do you mean by "manual lens"? You set aperture on lens?

05-26-2018, 06:55 PM   #92
Veteran Member




Join Date: Sep 2014
Photos: Albums
Posts: 1,020
Original Poster
Yes, manual lens to me is any lens with a manual aperture ring. More specifically in my instance of failure an M28 f/2.8

QuoteOriginally posted by reh321 Quote
What do you mean by "manual lens"? You set aperture on lens?
05-28-2018, 05:00 PM   #93
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
QuoteOriginally posted by Auzzie-Phoenix Quote
Yes, manual lens to me is any lens with a manual aperture ring. More specifically in my instance of failure an M28 f/2.8
That is very disappointing. My understanding was that manual aperture rings would continue to function correctly even if the K-30/50 aperture control mechanism fails. That is important to me because my preferred backup solution is a pair of AF lenses with manual aperture control {my other backup solution is a pair of AdaptAll lenses, and I have determined how to disable the mechanism that would enable the K-30/50 to open the aperture - so they would always have the correct aperture - but they aren't AF, of course}.
05-28-2018, 07:21 PM   #94
Moderator
Not a Number's Avatar

Join Date: Mar 2012
Location: Venice, CA
Posts: 10,526
Which probably illustrates why Ricoh US treats each failure on a case by case basis. There may be more than one component failing. Didn't someone say they contacted RIcoh in his/her country and was told Ricoh would not cover the repair, and was told that no service alert or advisory had been sent out from Ricoh Japan?

05-29-2018, 10:24 PM   #95
Site Supporter
Site Supporter




Join Date: Apr 2015
Posts: 3,520
QuoteOriginally posted by Auzzie-Phoenix Quote
Don't know about specific cases, but in my case I used the mechanism all the time with manual lenses. It failed before 4500 shots, just outside of the 2 year warranty.

What do you mean with "mechanism"?
05-31-2018, 10:09 PM   #96
Veteran Member




Join Date: Sep 2014
Photos: Albums
Posts: 1,020
Original Poster
They still work. I was just stating that the aperture mechanism in my unit still failed despite using manual aperture a lot. I can to this day still use manual aperture and get fine exposures. I just can't stop down to meter if I set aperture to Auto.

QuoteOriginally posted by reh321 Quote
That is very disappointing. My understanding was that manual aperture rings would continue to function correctly even if the K-30/50 aperture control mechanism fails. That is important to me because my preferred backup solution is a pair of AF lenses with manual aperture control {my other backup solution is a pair of AdaptAll lenses, and I have determined how to disable the mechanism that would enable the K-30/50 to open the aperture - so they would always have the correct aperture - but they aren't AF, of course}.
06-01-2018, 03:47 AM   #97
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
QuoteOriginally posted by Auzzie-Phoenix Quote
They still work. I was just stating that the aperture mechanism in my unit still failed despite using manual aperture a lot. I can to this day still use manual aperture and get fine exposures. I just can't stop down to meter if I set aperture to Auto.
Since we don't know what causes this phenomenon, anything we say is purely speculation, but I would guess that using lenses in manual mode has no effect on progression of the "disease" {I.e., there is no evidence that the aperture control mechanism "wears out" ... if anything, "work" may be good for it}

06-02-2018, 01:44 PM   #98
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
Last weekend, my wife and I spent the three-day-for-us holiday at a Canadian NP; high on my agenda was taking some pictures in the swamp, which would require use of my Sigma 10-20mm lens {looking at my lenses with an aperture ring, the widest I can go is 28mm, which would be OK on most days, but not for this}. Each day, the first picture was dark, but every picture afterwards was OK, including the swamp pictures. So, I was expecting trouble today when we made a daytrip, but everything went OK today - even the first picture. I'm not sure what to make of what I'm seeing, so I'll just take pictures and let others "think".

Last edited by reh321; 06-02-2018 at 03:52 PM. Reason: add last sentence
06-02-2018, 04:49 PM   #99
New Member




Join Date: Jun 2018
Posts: 1
In my case, the aperture failure appeared out of nowhere. I tried most all recommendations (photo burst, batteries, etc.) to no avail. Ricoh was no help as they never responded to multiple inquiries (out of warranty, but figured I'd give it a try). I decided it was best to have someone do the repair instead of toying around with the electronics myself. I had the guy in Cali do the repair and am happy to say that my camera is back to its old self! Time will tell how permanent the repair is - but he does warranty the repair for a year. I am keeping a manual lens in my bag from now on just in case.
06-02-2018, 06:40 PM   #100
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
QuoteOriginally posted by _GW_ Quote
I am keeping a manual lens in my bag from now on just in case.
What kind of manual lens?
Did you use it while your aperture control wasn't working??
06-04-2018, 12:37 PM   #101
Junior Member




Join Date: Jun 2009
Location: Atlanta
Posts: 41
I first noticed my K30 started taking dark images last fall. Trying to take our annual family Halloween costume photo. It eventually started working after about 30 shots. Put it back in the case and had the same problem again around Christmas. (Not using it near as much these days). Took it out a week ago to get ready for my daughter's dance recital. Could not get it working. 50+ shots, a bunch of image previews. Finally read about the aperture solenoid problem. Took it apart and did some minor filing on the horseshoe, coated it in deoxit, it is working somewhat better, but I still get 5 or 10 dark images before it starts working.

So, I bid/won an auction for a $29 shipped *ist DS body today. Hopefully I get one that has two white solenoids.
06-07-2018, 02:30 PM   #102
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
QuoteOriginally posted by billx2 Quote
I first noticed my K30 started taking dark images last fall. Trying to take our annual family Halloween costume photo. It eventually started working after about 30 shots. Put it back in the case and had the same problem again around Christmas. (Not using it near as much these days). Took it out a week ago to get ready for my daughter's dance recital. Could not get it working. 50+ shots, a bunch of image previews. Finally read about the aperture solenoid problem. Took it apart and did some minor filing on the horseshoe, coated it in deoxit, it is working somewhat better, but I still get 5 or 10 dark images before it starts working.

So, I bid/won an auction for a $29 shipped *ist DS body today. Hopefully I get one that has two white solenoids.
I have now had my K-30 for 37 months, roughly 3100 on the shutter count. I took ten or so pictures last Saturday; today, after roughly five days rest I took a picture of our cat resting on the piano - first image was black, second {allegedly same settings} was OK. "Folklore" suggests that these cameras don't like time off. The five day rest mine had took one shot to recover from; the longer one yours had was more of an issue. I'll see whether mine needs less rest, or more "warmup"/"recovery" over time.
06-07-2018, 05:49 PM   #103
Senior Member




Join Date: Oct 2014
Location: DFW, TX
Posts: 121
QuoteOriginally posted by reh321 Quote
I have now had my K-30 for 37 months, roughly 3100 on the shutter count. I took ten or so pictures last Saturday; today, after roughly five days rest I took a picture of our cat resting on the piano - first image was black, second {allegedly same settings} was OK. "Folklore" suggests that these cameras don't like time off. The five day rest mine had took one shot to recover from; the longer one yours had was more of an issue. I'll see whether mine needs less rest, or more "warmup"/"recovery" over time.
I had similar situation at the beginning of "disease", when first few shots were dark, later ones were normal (usually shooting a burst "cleared" the issue for a while). Unfortunately, it is only a step on the road to death of this mechanism - already ordered KP and till then using my aperture ring lenses.

Oh well... 18220 not too bad for my camera, my K200D has less, I think. Unfortunately, my K200D is in different country, and my K30 was perfectly working a week ago, otherwise I would have asked my mom to pass the K200D through my colleague who was coming. Another not fun part is that I have some shooting this weekend (luckily - only for me), and only a few autofocus aperture ring lenses, all of which overlaps in focal range (50-500, 70-300 and 90). I hope I won't need wide end often, as my eyes has difficulties with manual focus...

Did hope to wait through till Photokina, though.
06-09-2018, 07:33 AM   #104
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,180
QuoteOriginally posted by Evie Quote
I had similar situation at the beginning of "disease", when first few shots were dark, later ones were normal (usually shooting a burst "cleared" the issue for a while). Unfortunately, it is only a step on the road to death of this mechanism - already ordered KP and till then using my aperture ring lenses.

Oh well... 18220 not too bad for my camera, my K200D has less, I think. Unfortunately, my K200D is in different country, and my K30 was perfectly working a week ago, otherwise I would have asked my mom to pass the K200D through my colleague who was coming. Another not fun part is that I have some shooting this weekend (luckily - only for me), and only a few autofocus aperture ring lenses, all of which overlaps in focal range (50-500, 70-300 and 90). I hope I won't need wide end often, as my eyes has difficulties with manual focus...

Did hope to wait through till Photokina, though.
From my perspective, 18,220 is very good; most failures seem to occur from under-use {too much time off} rather than over-use.
06-09-2018, 08:17 PM   #105
Veteran Member




Join Date: Sep 2014
Photos: Albums
Posts: 1,020
Original Poster
Congratulations, this thread is now a sticky! I contacted adam last night. Now we don't have to worry about the thread disappearing in the page listings.
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!
aperture, aperture block failure, block, camera, change, couple, dark frame, date, diagnosis, failure, issue, k-30, k-50, lens, lenses, pentax, pentax k30, pentax k50, people, repair, shutter, step, test, tutorial, unit, warranty

Similar Threads
Thread Thread Starter Forum Replies Last Post
K-30 or K-50 on TV fgaudet Pentax DSLR Discussion 22 11-09-2014 08:14 PM
For Sale - Sold: Focusingscreens.com EE-S Screen for K-3, K-5, K-5II, K-7, K-30, K-50 & K-500 Aperturae Sold Items 6 10-06-2014 06:49 AM
Pentax K-30 Problems. Won't turn on. steezylistic Troubleshooting and Beginner Help 8 07-13-2014 10:45 AM
K-500 or K-30/50 Rayak Pentax K-30 & K-50 6 06-11-2014 01:15 AM
For Sale - Sold: KatzEye Split-Prism Focusing Screen - for K-3, K-5, K-5II, K-7, K-30, K-50 & K-500 Eyewanders Sold Items 7 04-15-2014 08:35 PM



All times are GMT -7. The time now is 03:19 PM. | 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