Search results for 'sensor cleaning' - page 610
What is this? - unusual marks on Pentax-M 80-200 front element
Thanks for the reply David. I'm almost certain it's not fungus now after doing some more research - it looks the same as the photo of the lens in the following link. In the thread they think it could be oil on the lens or cement that somehow liquefied and then hardened on the element. A...
Posted by Blues_Breaker on 29/04/2012 - 13:51
lost fstop display on tamorn lens
If it's an Adaptall 2 mount you may need to clean the electrical contacts on the lens and the actual mount itself as that too is used as an electrical contact. this is a tamron AFaspherical LD[if] 28 -300mm macro Well, not Adaptall but still worth seeing if cleaning the contacts helps. Presume o...
Posted by JAK on 30/04/2012 - 12:44
lost fstop display on tamorn lens
cleaning contacts gave a f stop just for sec. lost when zoomed lens seems tight when mounted comes back when not zoomed
Posted by crashmars on 30/04/2012 - 13:03
No auto exposure with 100mm DFA with Kenko Teleplus
Sorry yes, forgot to add the WR. It is in fact working now after doing various things like cleaning the contacts, reseating it a few times etc. Have a feeling it might be intermittent but will have to test further. Thanks for the suggestions and perhaps panic over. Dave
Posted by dcweather on 01/06/2012 - 22:27
Will using acetone to clean a lens affect SMC coatings?
Hello all, Recently bought a job lot of cameras off of eBay for the huge sum of £15 plus postage(£20). I don't mean to gloat but I can't understand how I managed to get it so cheaply as it had been viewed 350 times and included the relatively rare FA 50mm f1.7 lens! :shock: Anyway the stuff c...
Posted by Blues_Breaker on 30/05/2012 - 23:14
Will using acetone to clean a lens affect SMC coatings?
Why not try taking some pictures with it first, see how much it affects the image! It may not be too noticeable. Not sure about the acetone but I think I'd try normal cleaning first.
Posted by doingthebobs on 30/05/2012 - 23:48
Will using acetone to clean a lens affect SMC coatings?
Keir - I'd go with John Riley's advice on this one! Isopropyl alcohol is the cleaning fluid of choice for getting rid of gunk on most electronics, as it is non-conductive (not that is matters in this instance), and evaporates without leaving a film of oil or some such. You may have to spend a couple...
Posted by steven9761 on 31/05/2012 - 08:19
Will using acetone to clean a lens affect SMC coatings?
I googled a bit and found that acetone can remove superglue from glass easily but melts plastics that it comes into contact with. Firstly, I am no lens cleaning expert. What I do know is that acetone is used to clean lens elements during the lens production process. Acetone is an excellent solvent c...
Posted by Mannesty on 31/05/2012 - 13:44
Will using acetone to clean a lens affect SMC coatings?
Wow, thanks for all of the replies! I haven't taken any real test photos with the lens yet but even if they were unaffected having that kind of mark on the lens would drive me nuts! Looks like i'll try the isopropyl first to see if that will shift it, thanks to all of those who suggested it. ...
Posted by Blues_Breaker on 02/06/2012 - 07:07
K5 AF and warranty
This may sound like a silly question but have you taken test pics in both landscape and portrait orientation- if so are the results the same? Now,it's late and I have probably been hit with a stupid stick but ,ho,ho- have you tried taking same test pics with the camera upside down or with the focus ...
Posted by Gary Hickin on 03/06/2012 - 02:17
Hot shoe not working
Charlotte, it shouldn't make any difference whether you have manual tubes fitted or not. I would also suggest cleaning the contacts on your lenses and on your camera's mount as it sounds as though there may be a short-circuit somewhere between the camera and lens / tubes. Regards David
Posted by davidstorm on 03/06/2012 - 15:20
Cleaning
Has anyone attempted to take a Sigma 17-70 apart for cleaning, I have mold in mine and cant justify the cost of sending it away. I did the 50-500 without any dramas but I cant see where to unscrew this one.
Posted by 08tiger on 04/06/2012 - 10:53
Sensor Spots
Ok, not so much of a trouble shooter really but my questions are: a) should I have a go at cleaning my Kr and K200d sensors myself; and b) if so, what tips recommendations do other forum members have? Thanks, Andrew
Posted by AndrewA on 20/06/2012 - 08:14
Sensor Spots
here you go my friend is not that bad to do
Posted by generator on 20/06/2012 - 09:40
Sensor Spots
Yes clean them yourself. Don't use a blower - you can blow crud into the body. Someone even managed to damage their sensor with one I believe. I use an Arctic Butterfly to clean mine. They cost a lot but are a good investment imho. Alternatively buy something like and go the wet route. M...
Posted by Gwyn on 20/06/2012 - 09:58
Sensor Spots
I finally bit the bullet and did mine, and I was quite pleased at how simple it was. I bought a set of ten cleaning pads and liquid off Amazon for about a tenner, followed the supplied instructions, and it was fine. I never got the camera to lift the mirror when using standard batteries, I had t...
Posted by droopsnoot on 20/06/2012 - 10:33
Problem with smc DA 50-200mm f/4.0-5.6 ED WR
Try cleaning the contacts on the camera mount and the lens mount, using a soft, dry cloth to remove any traces of dirt or grease. Then remount the lens, making sure it seats positively with a click. Also, check the AF lever on the camera is firmly set to AF and not caught half way between AF a...
Posted by johnriley on 20/06/2012 - 15:27
Problem with smc DA 50-200mm f/4.0-5.6 ED WR
Try cleaning the contacts on the camera mount and the lens mount, using a soft, dry cloth to remove any traces of dirt or grease. Then remount the lens, making sure it seats positively with a click. Also, check the AF lever on the camera is firmly set to AF and not caught half way between AF a...
Posted by Rowdy on 20/06/2012 - 17:36
Pentax Kr issue
As you are in Bali (beautiful part of the world!!), could it be that you've been in proximity ot the sun-kissed beaches there, and you've somehow got a grain or two of sand inside the housing? Maybe you were changing lenses on or near the beach, and a light breeze has carried this sand inside your c...
Posted by steven9761 on 03/07/2012 - 13:25
Pentax Kr issue
So I did the sensor cleaning and still no change, had a good look inside, looked nice and clean and clear. So a couple of weeks ago i took the camera back to currys. Their knowhow team didn't seem to know a lot at all about camera's and haven't filled me with confidence. They have sent it off to the...
Posted by bondys on 23/07/2012 - 14:44
