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laurencea

Link Posted 27/12/2019 - 19:31
Hello all
My battered KS2 has developed a nasty habit of drastically underexposing the first shot of the day - so much so it's virtually black.

as i am poor... i got around this by taking a shot as soon as i had the camera out. problem fixed!

except not it has sussed what i am up to and the problem now occurs if the camera hasn't been fired for a littlw while (maybe 10 minutes). as i mainly shoot wildlife, it's a tad annoying to quickly get a shot of something, only for it to come out too dark to see.

so, what is the point in this, i hear you ask? Well, i gues i better start looking for a new camera!

I'm a bit out of the loop and haven't a clue as to the timeline of the last lot of DSLRs. I guess i've had this one for three or four years now.

I've looked at SRS and i'm not in a position to get a new one as most of my money has been spent on a trip to Norway in March (another reason for wanting a reliable camera). I'm tempted to get a 2nd hand one, but i still haven't a clue on some of those available.

can anyone give me suggestions on what i should look for and at what price?

any help gratefully received. thank you, merci, eskerrik asko, dziekuje, takk.

Benz3ne

Link Posted 27/12/2019 - 20:13
Have a look at the aperture block problem. It’s fixable for sure! The K-S2 is a great camera but if you’re dead set on getting a new camera the K-70 is ergonomically practically identical. Otherwise the KP seems to offer a huge amount of camera for not a monumental outlay!

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davidwozhere

Link Posted 28/12/2019 - 00:46
There are a couple of K5ii offerings on Ebay presently. Well worth a look if nothing more.
Both the *istDS and the K5 are incurably addicted to old glass

My page on Photocrowd - link

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Nigelk

Link Posted 28/12/2019 - 07:36
I also use a K-S2, lovely little camera. Sorry to hear your having this problem. You certainly want a reliable camera for your trip to Norway. Shame you can't stretch to the KP, looks like great value at the current £649. In your shoes I'd probably look for a second hand K-70 or as a second choice a K3.
London Camera exchange, Exeter have a low shutter count K70 at £430 they might accept an offer
Last Edited by Nigelk on 28/12/2019 - 08:03

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roberrl

Link Posted 28/12/2019 - 09:22
K70 new £359 at SRS now

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laurencea

Link Posted 28/12/2019 - 14:19
Benz3ne wrote:
Have a look at the aperture block problem.

cheers all

Odd how you ignore the obvious sometimes! I assume it to be a sensor issue, but it may be a lens issue... i will now check. Chances are, it is the camera as it has had a rather batttered life.

the K-70 has passed me by, somewhat. i shall investigate further, but it looks beyond my range at present.

i see SRS have some 2nd hand K5iis on their site. i did buy a 2nd hand job off them yonks ago and it lasted well beyond the warrenty period (it was still working when it was unceremoniously shunted into a box - it was a K-100 i think!)

L
Pentax k100d, k30d 18-55, Tamron 70-300, Tamron 500 mirror, pentax 10-17, 50 1:4, a manual 28, some extension tubes and a bagful of memory cards. That's all i need... and a load of film cameras too... that's it, honest.

Benz3ne

Link Posted 28/12/2019 - 14:48
laurencea wrote:
Benz3ne wrote:
Have a look at the aperture block problem.

cheers all

Odd how you ignore the obvious sometimes! I assume it to be a sensor issue, but it may be a lens issue... i will now check. Chances are, it is the camera as it has had a rather batttered life.

the K-70 has passed me by, somewhat. i shall investigate further, but it looks beyond my range at present.

i see SRS have some 2nd hand K5iis on their site. i did buy a 2nd hand job off them yonks ago and it lasted well beyond the warrenty period (it was still working when it was unceremoniously shunted into a box - it was a K-100 i think!)

L

It’s unlikely to be a lens issue in my opinion, but try with a manual lens and see if you get any dark images!

It is essentially a defunct solenoid which shouldn’t take a huge amount of effort to replace, but doesn’t resolve the issue permanently unless you’re fortunate enough to get an old ‘white’ solenoid as found in some of the early DSLR’s.

The K5ii doesn’t have the same aperture solenoid so doesn’t suffer with the infamous ‘aperture block’ issue.

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laurencea

Link Posted 28/12/2019 - 15:12
[/quote]
It is essentially a defunct solenoid which shouldn’t take a huge amount of effort to replace, but doesn’t resolve the issue permanently unless you’re fortunate enough to get an old ‘white’ solenoid as found in some of the early DSLR’s.

The K5ii doesn’t have the same aperture solenoid so doesn’t suffer with the infamous ‘aperture block’ issue.[/quote]

i did not know this was a thing!

is it similar to the ME/Super winding issue, in that everyone knows, but you only find out when it happens to your camera? although the winding issue does produce some interesting photos!
Pentax k100d, k30d 18-55, Tamron 70-300, Tamron 500 mirror, pentax 10-17, 50 1:4, a manual 28, some extension tubes and a bagful of memory cards. That's all i need... and a load of film cameras too... that's it, honest.

OldTaffy

Link Posted 28/12/2019 - 23:41
Sorry to hear of your problem, Laurence. I also experienced this aperture fault on my K-S2 many months ago. It developed slowly and I realised what was wrong just after the two-year guarantee expired. Nevertheless the wizards at SRS took it in and somehow persuaded the Ricoh/Pentax repair unit to fix it under guarantee. From what you wrote, Laurence, it sounds as though you are impossibly long out of warranty.

The aperture block or aperture motor problem has been around for a long time. There was a brisk discussion on it starting in 2014 and still going on this year. See: The dreaded K30 aperture motor failure strikes again

Repairs can be rather uneconomical if it's out of warranty.

Martin
A few of my photographs in flickr.
Lizars 1910 "Challenge" quarter-plate camera; and some more recent stuff.

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laurencea

Link Posted 29/12/2019 - 13:37
Cheers Martin.

i guess my camera has had a good innings, but i do get fed up of the limited lifespan of modern cameras - then again, i guess they need to sell new models!

At the moment the problem isn't great, but getting worse and i don't want to be in a wonderful place with a broken camera, so i'll have to bite the bullet and look at a replacement.

L
Pentax k100d, k30d 18-55, Tamron 70-300, Tamron 500 mirror, pentax 10-17, 50 1:4, a manual 28, some extension tubes and a bagful of memory cards. That's all i need... and a load of film cameras too... that's it, honest.

davidtrout

Link Posted 30/12/2019 - 00:01
roberrl wrote:
K70 new £359 at SRS now

Yes I got one recently from SRS in a Black Friday deal for that price. It replaces my now defunct K30 and it performs really well. Good image quality.
David
PPG: http://www.pentaxphotogallery.com/artists/davidtrout

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jeallen01

Link Posted 30/12/2019 - 20:49
Another "recommendation" for a K-70 from SRS - paid about 30 quid more last Jan and have been very pleased with it - lot more modern than the K-30 and KS generations with a 24 Mp sensor and usuable at higher ISO and with "pixel shift" = virtually a cutprice KP (and without those potentially "notsuitable" exchangeable grips). And it has a "flippy" rear screen, which has been quite useful on a number of occasions, notably when the camera is on a tripod.

PS: at the SRS Pentax 100 yrs event, one of their staff called it something like an "incredible bargain".

PPS: later spent around £45 for a "white" solenoid = "just in case" it ever suffers "aperture block" (although "received evidence" from the US Pentaxforums tends to indicate that that this is far rarer with the K-70 than in earlier models - but, should that ever happen, I am hopeful that Asahi Photo in Brentford can do the replacement )
K-3 II, K-3 and a K-70 from SRS (having now relegated the K-30 /"K-50" to a backup body) , & some Sigma and Pentax lenses (and a lot of old 35mm gear!)
Last Edited by jeallen01 on 30/12/2019 - 20:54

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HarisF1

Link Posted 31/12/2019 - 00:19
Here's a bit of an interesting point for me - I've seen people refer to the issue as 'aperture block failure' and also 'aperture block'. Now which of these is correct and intended?

I've always thought the former was correct as I've seen the part called the 'aperture control block'. A quick Google search shows both uses (and the second form can sometimes be taken both ways too).

Jonathan-Mac

Link Posted 31/12/2019 - 09:37
It's a failure of the aperture block in the camera, specifically the solenoid that provides the movement.
Pentax hybrid user - Digital K3 & K200D, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X digital
Fan of DA limited and old manual lenses

laurencea

Link Posted 31/12/2019 - 15:18
eeeek! in a moment of, possible, madness, i went for a 2nd hand K-5ii.

There were various reasons - one being that i had fancied a K-5ii when they came out, but another being that, as lovely as the K70 is, there is a possibility of the aperture block returning (ok, i'll have a 2 year guarantee) and there is a new model on the horizon.

Part of me just wants one of the big guys of the camera scene and after a K30 and the KS2 i feel the quality has been a bit lacking in the lower models.

if the worst comes to the worst, i still have an ME Super as backup!

cheers for all the info and advice, Very much appreciated.
Pentax k100d, k30d 18-55, Tamron 70-300, Tamron 500 mirror, pentax 10-17, 50 1:4, a manual 28, some extension tubes and a bagful of memory cards. That's all i need... and a load of film cameras too... that's it, honest.
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