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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 22 Nov 2018 (Thursday) 00:34
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EOS R Sensor Hotspot?

 
slr_noob
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Nov 22, 2018 00:34 |  #1

I just received my EOS R to replace my aging, yet still handy EOS M. While waiting for the EF-EOS R adapter to arrive, I decide to fire it up to at least setup a few small things and ended up with an unusual discovery.

I noticed there were a couple hotspots with the body cap still on. Doesn't matter if I look at the screen or EVF. Has anybody experienced this?


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TeamSpeed
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Nov 24, 2018 07:35 |  #2

Put it in manual sensor clean mode for about a minute with no lens attached and just body cap on, then power cycle it and see if they go away.


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gjl711
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Nov 24, 2018 08:44 |  #3

TeamSpeed wrote in post #18757426 (external link)
Put it in manual sensor clean mode for about a minute with no lens attached and just body cap on, then power cycle it and see if they go away.

I wonder if this trick still works. :) To the OP, you need to define hot spot a bit more. I think T-Speed and myself are thinking hot pixels (random pixels turned on full blast), but a hot spot can be a much larger area with fuzzy edges. Individual pixels are normal and most post processing sfw takes care of that. A failing shutter can create a hot spot though usually it looks more like an arc.


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slr_noob
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Nov 25, 2018 01:29 |  #4

gjl711 wrote in post #18757451 (external link)
I wonder if this trick still works. :) To the OP, you need to define hot spot a bit more. I think T-Speed and myself are thinking hot pixels (random pixels turned on full blast), but a hot spot can be a much larger area with fuzzy edges. Individual pixels are normal and most post processing sfw takes care of that. A failing shutter can create a hot spot though usually it looks more like an arc.

I finally got the adapter, so I'll play with the camera if the hotspot shows up while on a photo and report back. The hotspot I noticed was only looking at the display, the same thing happens when looking at the EVF too


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TeamSpeed
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Post edited over 2 years ago by TeamSpeed.
     
Nov 25, 2018 05:37 |  #5

gjl711 wrote in post #18757451 (external link)
I wonder if this trick still works. :) To the OP, you need to define hot spot a bit more. I think T-Speed and myself are thinking hot pixels (random pixels turned on full blast), but a hot spot can be a much larger area with fuzzy edges. Individual pixels are normal and most post processing sfw takes care of that. A failing shutter can create a hot spot though usually it looks more like an arc.

Yes it still works (for individual pixels) . In fact if the lcd in the viewfinder develops spots, ie not on the sensor, the same process maps them out. We had a big thread on this on FM, and a canon tech put this info forth. We didnt believe it but after a few testimonies on FM and Dpreview, it seems to be valid.


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slr_noob
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Nov 29, 2018 00:12 |  #6

Well, I tried the camera a little bit and didn't seem to notice anything odd. I also made a quick call to Canon tech support to see what is their opinion of my observation. They say it's not a huge deal as the hardware "trying to find light that makes sense" when the body cap is on and pitch black unless I have a dead pixel when I take a picture. It's safe to say problem solved now.


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EOS R Sensor Hotspot?
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