Search results for 'back focus' - page 2153
Sigma 70-200 f/2.8 lens- have to push down to get it to work
Hi, I have a Sigma 70-200 f/2.8 lens, which I love. Recently when connected, the top lcd screen flashes F-- and it won't focus. I have to push the lens down to get it to work. Any idea what the problem could be please? Thanks, Pa.
Posted by dinneenp on 01/09/2022 - 19:55
Pentax LX mirror dings when returning
Hi all, I recently got hold of a nice condition LX that seems to work fine, I just had to put in new mirror bumpers. Before I put in the bumpers I made quite a "ding" sound when firing (I didn't initially realise there was no bumper) but I thought the cause of the sound was the lack of bumper. ...
Posted by Jonathan-Mac on 06/09/2022 - 08:43
Sigma lens repair - where to go?
Hope y'all can help. I'm waiting to hear back from Fixation but meanwhile are there any other reliable repairers for Sigma lenses - in this case it's a 17-50mm f2.8 lens that is possibly having HSM problems. AF often doesn't work, but in AF mode if I half press the shutter while gently focusing, the...
Posted by davidxgreen on 23/09/2022 - 07:31
Sigma lens repair - where to go?
Just wanted to end the thread by mentioning how fast and professional the sigma repair team was. They fixed the lens in a day or two and got it back today already. Itemised list of the repairs, well packaged, 1 hour time slot with DPD for delivery. And the price of £119 for this lens was listed on t...
Posted by davidxgreen on 30/09/2022 - 13:35
K5 iis - Diopter Adjustment Lever Missing
An update - after telling me the lever was no longer available, John Pye got back to me and said they had located some stock in Europe. A few days later it arrived and was fitted in 30secs and the diopter adjustment is now back to like new. Happy days!
Posted by Cayman on 10/08/2025 - 12:57
K5 iis - Diopter Adjustment Lever Missing
An update - after telling me the lever was no longer available, John Pye got back to me and said they had located some stock in Europe. A few days later it arrived and was fitted in 30secs and the diopter adjustment is now back to like new. Happy days! Thanks for the update - that's what you call a ...
Posted by LennyBloke on 10/08/2025 - 13:15
Low battery icon for old Pentax Optio E60
also says: "If the batteries have been removed from the camera for a long time, when they are reinserted and the camera is turned on, the message [Battery depleted] may appear. This can also happen when using the camera for the first time; however this is not a malfunction. Turn the camera off, wai...
Posted by Hunsta on 16/10/2022 - 09:59
A funny line in my image
I'll give a test and get back with the results.
Posted by Spad on 19/10/2022 - 23:04
k3 ii acting up this week
I suppose I'll have to send it in for repairs but thought I'd ask if anyone knows what's going on here. Focusing starting getting a bit hit and miss with various lenses (which work fine on my back-up camera). Also the lighting was doing strange things last night on a shoot. I'd set the flash and ...
Posted by davidxgreen on 26/10/2022 - 16:31
k3 ii acting up this week
That's the screw-drive AF coupler. It should be retracted as per your K3 when the body is set to MF and protrude as per your K3ii when the body is set to AF (or at least that's what happens on my K3 :wink:). In the AF position, pushing a lens onto the camera pushes the coupler into its hole then it ...
Posted by Lubbyman on 26/10/2022 - 17:47
k3 ii acting up this week
Thanks a bunch, Lubbyman. I'll check if it retracts when in AF vs MF. Didn't know about that! I'll also look into properly cleaning the contacts. The only other thing I forgot to mention, which made me think it was beyond my skills. When I had the Sigma 17-50mm lens on it. The lens has a lock switch...
Posted by davidxgreen on 26/10/2022 - 19:15
k3 ii acting up this week
aha! so the lens needs to be at 17mm to be able to use the zoom lock (which I will never need). so that means it's also not related to the exposure/focus problems I was having. I did a thorough clean of the contacts yesterday. The micro fibre cloth had enough black grease/dirt areas on it that I've ...
Posted by davidxgreen on 27/10/2022 - 07:46
Lens not functioning in manual mode
Just adding: I can by hand manipulate the slider and see the aperture change inside the lens. But it doesn't jump back to fully closed as another lens I have. Perhaps a spring broken/fallen off?
Posted by Morten on 29/10/2022 - 10:58
Lens not functioning in manual mode
I've done a few of them, complete disassembly to get to elements that had residue on them from fogging up, this is the guide I've followed. https://www.flickr.com/photos/fluffyrazor/albums/72157630944498102/ I think in your case, you'll not even have to take the metal mount off (avoid this sin...
Posted by rick on 29/10/2022 - 15:44
Lens not functioning in manual mode
Yep, those ones, the back plastic cover will then lift out, it's got like a inner collar on it. It can only go back on one way because of the window for the aperture lever.
Posted by rick on 29/10/2022 - 16:07
dust spots on stacks
Dust on the sensor tends to be OOF ,these are in focus like a stuck pixel I wondered if it is a dead pixel moving around due to lens breathing while refocussing the stack. John
Posted by DOIK on 17/02/2023 - 16:08
K-3 II Astrotracer Weirdness
really hoping someone can help with this: K-3II with Asahi Takumar SMC 200mm F/4 lens. so, calibration "appeared to have gone well", but the resultant image [F/4, iso800, 20sec] appears to have "doubled" every star in the image. strange though, because I next took a quick capture of the Moon [F/22,...
Posted by brenski on 27/03/2023 - 22:41
k1 help
Thanks for all the help but was unable to fix so its gone back to ice under warranty
Posted by reso on 11/04/2023 - 13:00
Payment
Best thing to do is make a report and the appropriate person will be able to get back to you and respond to your comments. Hope that helps!
Posted by johnriley on 28/04/2023 - 22:00
Pentax DA* 50-135 SDM
Put it on the camera body, cap on. Hold the AF button to force the lens to focus while at the same time turn the focusing ring back and forth. You should see the AF light turn on while this happens. After a while, there's a chance the SDM will become free and so the lens will start to focus co...
Posted by HarisF1 on 01/07/2023 - 13:36
