X-Pro1 - dust between sensor and glass filters?

Started May 28, 2012 | Discussions
(unknown member) Contributing Member • Posts: 710
X-Pro1 - dust between sensor and glass filters?

I've had my X-Pro1 for about two months now, and just aquired the 18mm lens. I am doing some landscape shots, and usually I'm using a Hoya NDX400 and F16 to get long shutter times during daylight.

I suddenly noticed a speck on my shots (very visible especially on blue skies or water which has been smoothed out because of long shutter times). So I thought I might have gotten some dust on my sensor and started cleaning:

1. Charged SensorSweep brush - no effect, did not remove the speck.

2. 2x PhotoGraphic Solutions SensorSwab's with Eclipse fluid (3 drops on each use) - no effect here either.

3. Manually triggered the cameras sensorcleaning capabilities about 10 times in a row. No effect.
4. Cleaned the lenses inside and out. No effect.

5. Used a light and thoroughly inspected the sensor, no visible dust at all (but I did not use a loupe - don't have one).

Changed the lenses, and the speck is almost invisible while using the 35mm, even at f/16. But there is a visible "shadow" there. On the 18mm however, the speck is very visible - even at f/11 (which I often use).

Could this be some dust that is between the sensor it self and the three glass layers that are in front of the sensor? Or a dead pixel? If so, is this covered by warranty?

Fujifilm X-Pro1
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LaFonte Senior Member • Posts: 2,877
Re: X-Pro1 - dust between sensor and glass filters?

by looking at sensor with naked eye, you can't really see dust that small for that tiny blob. And dust on lens will not create such sharp blob, in fact dust on lens would not do that much. For such clear blob it has to be very close the sensor. Could be under the glass.

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Clint Dunn
Clint Dunn Senior Member • Posts: 1,605
Re: X-Pro1 - dust between sensor and glass filters?

That's definitely dust on the sensor, not a burnt pixel. A burnt pixel will be a bright white or coloured spot the size of ....a pixel:)

Looks like the dust is trapped or otherwise can't be shaken off with the ultrasonic cleaner. I don't know whether that would be a warranty item or not??? It's certainly easy to fix in PS (spot healing tool), but that would be a pain to deal with on a frequent basis.

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OP (unknown member) Contributing Member • Posts: 710
Re: X-Pro1 - dust between sensor and glass filters?

I have tried wet cleaning as well - twice - as stated in my first post, and it didn't remove it.

Thus I think it is trapped behind the "glass filter" that is in front of the sensor.

I bought the X-Pro1 primarily to avoid post processing because I love it's jpeg output, so I am not interested in having to deal with a dust speck on every single photograph that I make... I'm gonna talk to the shop tomorrow, and if it's not covered by warranty or if I am not able to return the camera and get a replacement I'll basically dip the X-Pro1 body in salt water, leave it over night, and use my insurance (I paid a lot extra for 4 year insurance which covers anything - no questions asked - from the shop I bought the camera from).

I do not want to do what I wrote in the last sentence, but if it's not covered on warranty and if the shop isn't helpful, I don't want to be stuck with post processing every single photograph I make just to remove a dust speck that shouldn't be there in the first place!

Clint Dunn wrote:

That's definitely dust on the sensor, not a burnt pixel. A burnt pixel will be a bright white or coloured spot the size of ....a pixel:)

Looks like the dust is trapped or otherwise can't be shaken off with the ultrasonic cleaner. I don't know whether that would be a warranty item or not??? It's certainly easy to fix in PS (spot healing tool), but that would be a pain to deal with on a frequent basis.

ORothe Junior Member • Posts: 27
Re: X-Pro1 - dust between sensor and glass filters?

I had a X-Pro1 with a similar blob that was almost certainly under the glass filters. Proof: I sent it to Fujifilm for service and they cleaned the sensor, but the blob stayed there - twice. In the end I received a replacement.

So you are not alone.

The good news is: the dust is almost certainly covered by warranty. The sensor module is sealed (or should be) so any dust you find was already there when you received the camera. If it is much more visible with the 18mm lens and you only just bought one, that would explain why you did not notice the blob before.

OP (unknown member) Contributing Member • Posts: 710
Re: X-Pro1 - dust between sensor and glass filters?

Thanks for your reply.

I have spoken with the shop, and the shop I purchased it from has a sensor specialist employed apparently, which has proper education and certifications on sensor cleaning and analysis. So I am going down to the shop later today to deliver my camera which he will look at by monday with some special magnification equipment and stuff to see if the dust is under the cover glass on top of the sensor. If it is, it has to be shipped to the UK to be fixed as nobody in Norway has the correct equipment which is needed for a sensor replacement.

My biggest fear is that I have to live without the camera for a weeks Ironically I have a "super insurance" on the camera as well, so if I throw it to the ground and jump on it or drive my car over it I get a new camerabody on the insurance instantly... Sucks that being honest means that you get worse service! I mentioned this to the shop as well... And they said we could probably agree on something, but they would have to inspect the sensor first... So I hope they can be nice and just exhcange the camera for a new one, since I am travelling a lot this summer and I purchased the X-Pro1 specifically for this season...

How long did it take for you to get this fixed?

ORothe wrote:

I had a X-Pro1 with a similar blob that was almost certainly under the glass filters. Proof: I sent it to Fujifilm for service and they cleaned the sensor, but the blob stayed there - twice. In the end I received a replacement.

So you are not alone.

The good news is: the dust is almost certainly covered by warranty. The sensor module is sealed (or should be) so any dust you find was already there when you received the camera. If it is much more visible with the 18mm lens and you only just bought one, that would explain why you did not notice the blob before.

ORothe Junior Member • Posts: 27
Re: X-Pro1 - dust between sensor and glass filters?

borgein wrote:

How long did it take for you to get this fixed?

In my case they never fixed it. I sent it in (2x), they read something about "dust" in the error description, so they cleaned the sensor. Which would be OK, if they had checked afterwards whether the cleaning was succesful and the blob was gone. Unfortunately they did not do that. In the end local Fujifilm agreed to exchange my camera.

The actual turnaround time was very good, 2-3 weeks each. I was told that the X cameras have priority in the repair centre.

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