In this case I was using it for other purposes and for ƒ8.0 it was still showing. The oil was so bad I couldn't get it removed ergo the trip(s) to CPS. Only thing positive (if you can spin it that way ) was their feeble cleaning attempts must have loosened the spots up a bit since I was finally able to get them cleaned off myself.
schlotz wrote:
In this case I was using it for other purposes and for ƒ8.0 it was still showing. The oil was so bad I couldn't get it removed ergo the trip(s) to CPS. Only thing positive (if you can spin it that way ) was their feeble cleaning attempts must have loosened the spots up a bit since I was finally able to get them cleaned off myself.
What I found if you don't clean it regularly it burns on the sensor and takes a lot more effort to remove. I would recommend cleaning every 30,000 clicks. Then again, the more you clean the sensor the higher the probability of scratching it and it will happen eventually...
Pius Sullivan wrote:
What I found if you don't clean it regularly it burns on the sensor and takes a lot more effort to remove. I would recommend cleaning every 30,000 clicks. Then again, the more you clean the sensor the higher the probability of scratching it and it will happen eventually...
That's why I had commented that oil spread is not part of the normality user should have to accept even if you don't always shoot at f 8 or higher. As you say, the more often you need to clean the sensor the higher the risk to scratch it accidentally sometime. You cannot send the camera to the CPS after each extensive use either. Unfortunately I don't see how to deal with the issue rather than in fact to live with it and hope for not damaging the sensor.
As said above, over the years my 1Dx II had less oil deposits and need for cleaning. I don't know if this was caused by the lubricant becoming more viscous.
I don't think the sensor coating is as delicate as people fear. I can't speak to the sticky pull up type of cleaning method but the wet method with the correct size swabs has been problem free for me.
I have been reading this thread and feeling pretty good about my camera re": oil spots but I decided to shoot at F22 and look at the sensor. Holy cow- I have dozens of oil spots in RUC of image ( ie LLC on sensor). I rarely shoot higher than f 9 so it does not affect my shooting per say but still very unnerving to see the problem. I never had any issue with my 1Dx 1.
I guess I have to live with it. Will send camera in for sensor clean before major trips and otherwise try to forget about it.
Chez,
I'm really not very knowledgeable on this subject--but just 2 days ago I googled "sensor dust oil spots" to learn more about how to tell dust spots from oil spots. fwiw, As a canon shooter I've heard about oil spots on sensors for years--I thought it was only a canon thing. My google results listed a LOT of posts by nikon shooters, several of whom asked "if we keep getting oil on our nikon sensors does anybody ever wonder how canon manages not to have the oil on sensor problem?" so I guess lubricating mirror linkages is just a problem across the board....who knew--I didn't.
fgphoto wrote:
I have been using mine since Feb 14 (two of them) and have had no oil spot issues at all. In fact I haven't had any dust problems either. At least up to this point they seem like they attract less dust and crud than the mk II.
Just like in the thread regarding the oil splatter issue with the 1DX Mark II, I'll ask anyone who says they don't have the issue to prove it.
Please provide a RAW photo at f/10-16 which has a plain, even-lit, background (like the sky).
My experience of collecting RAWs from over 40 1DX Mark II's showed that every single camera exhibited the problem.
p.2 #10 · 1 Dx Mark III, oil spots - experiences ?
WJaekel wrote:
That's why I had commented that oil spread is not part of the normality user should have to accept even if you don't always shoot at f 8 or higher. As you say, the more often you need to clean the sensor the higher the risk to scratch it accidentally sometime. You cannot send the camera to the CPS after each extensive use either. Unfortunately I don't see how to deal with the issue rather than in fact to live with it and hope for not damaging the sensor.
As said above, over the years my 1Dx II had less oil deposits and need for cleaning. I don't know if this was caused by the lubricant becoming more viscous.
It's outrageous to claim that this isn't an issue on any of the 1DX-series camera bodies. Even if you don't notice the issue because of your shooting style (for example, using Super Whites at their maximum wide-aperture), the fact remains that oil has still accumulated on the sensor and will need cleaning off at some point, thus increasing the risk of damage.
I had to have my 1DX Mark II sensor replaced because of a sensor cleaning gone wrong at my local camera dealership. Sensor replacements are not fun, and they are not cheap ($1,700 CAD). After the sensor replacement, I decided to always send my camera into Canon Canada for future cleanings -- that also cost me a ton, and I had the added worry of shipping my expensive camera across the country each time.
Canon Canada and Canon USA were made well aware of this issue. I spoke to both Canon USA and Canon Canada numerous times, sent them RAWS from over 40 different cameras, and even sent my 1DX Mark II in so they could run tests on it. In the end, after dealing with CPS for months, I gave up and decided to sell the camera. Canon was not going to (and will likely never) acknowledge the problem.
It was a difficult decision for me to sell the 1DX Mark II. I miss the functionality of the 1D-series; there's no better or faster focusing cameras Canon makes, and the ergonomics are the best in the biz, but I got sick of the ongoing cleaning expense and risk accompanied with sending it in constantly.
I'm sorry to hear that this problem persists on the Mark III now. I'm glad I didn't pre-order it.
p.2 #11 · 1 Dx Mark III, oil spots - experiences ?
Just to be clear, many with big oil spots don't know it. People who don't shoot bright sky shots at f22 for example. This is a problem I saw way back in the 1DmkIII days. Bought a body from a great seller with great feedback. Turned out it had an oil spot half the size of the sensor. Didn't complain to the seller. Sent it to Canon, problem solved.
) was their feeble cleaning attempts must have loosened the spots up a bit since I was finally able to get them cleaned off myself. 
