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Archive 2012 · 5d mk2 liveview sensor?
  
 
mjeffbr
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p.1 #1 · p.1 #1 · 5d mk2 liveview sensor?


Hello friends, little help here

Since I bought my 5d mk2 I noticed it shows a lot of blobs/specks/dots when I look through the viewfinder, did the sky test - immaculate

so I figured it was only inside the liveview and kept going, today I noticed a speck in liveview, but it does not show in the picture, and when I zoom in live view it is always at the same place, even if I move the image around

so, is there anything like another sensor, a liveview secondary sensor to accumulate dust ?





Oct 26, 2012 at 01:49 AM
mjeffbr
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p.1 #2 · p.1 #2 · 5d mk2 liveview sensor?


well, just found out it shows in videos, in a slightly different place, but not in pictures


Oct 26, 2012 at 01:58 AM
curious80
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p.1 #3 · p.1 #3 · 5d mk2 liveview sensor?


Your description is confusing. First you said that you see the dust through the viewfinder and then you said you see it on live view. Which one is it? The viewfinder view does not come through the sensor so if there is dust visible there then it is either in the viewfinder itself or in the lens. The live view on the other hand comes through the sensor so if you see a spot there then it could be dust on the sensor or a stuck pixel on the sensor or a stuck pixel in the LCD itself.




Oct 26, 2012 at 02:03 AM
Mescalamba
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p.1 #4 · p.1 #4 · 5d mk2 liveview sensor?


Secondary sensor.. funny idea.

Actually Sony made dSLRs like this.

No, LV is directly from your main sensor. If you see specks on LV and not on final photos, maybe you have them mapped out. Canon does have this function.



Oct 26, 2012 at 02:03 AM
mjeffbr
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p.1 #5 · p.1 #5 · 5d mk2 liveview sensor?


I am confused here too, changed the lens, same thing

I had an issue like that with a nifty fifty a long ago, but I could see it in the lens

let me organize the facts:
1- it does not show in pictures, at f1.4 or f10
2- it shows in video, but I just tested, two videos one at f9 it shows a fixed white mark; at 2.8 nothing...



Oct 26, 2012 at 02:08 AM
RobDickinson
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p.1 #6 · p.1 #6 · 5d mk2 liveview sensor?


As you stop down marks on the sensor and on the lens wil become more apparent.

Video will probably show things more than stills at the same view size.


The viewfinder (TTL) gets dirt o the focus screen, be careful when you clean this

Pictures, movies and live view will show dirt on the sensor.



Oct 26, 2012 at 02:12 AM
 

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mjeffbr
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p.1 #7 · p.1 #7 · 5d mk2 liveview sensor?


RobDickinson, that is what I thought, but I was also afraid it colud be in the lens (more expensive to clean) or worse - a dead pixel !




Oct 26, 2012 at 02:16 AM
Ian.Dobinson
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p.1 #8 · p.1 #8 · 5d mk2 liveview sensor?


mjeffbr wrote:
I am confused here too, changed the lens, same thing

I had an issue like that with a nifty fifty a long ago, but I could see it in the lens

let me organize the facts:
1- it does not show in pictures, at f1.4 or f10
2- it shows in video, but I just tested, two videos one at f9 it shows a fixed white mark; at 2.8 nothing...


It's likely to be DUST on the sensor. It will notice more and more as you stop down.
Go out and shoot a plain sky at various fstops and you should see it more prominent as you get to the much smaller fstops .

And just to clear up a few points above.

Anything you can see thru the OPTICLE viewfinder won't be seen in the image (unless its on the lens )
Canon have only 1 imaging sensor . Its used for still, video and live view.



Oct 26, 2012 at 07:14 AM
ytsaelee
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p.1 #9 · p.1 #9 · 5d mk2 liveview sensor?


only a few places to check: viewfinder, focusing screen, mirror, lens (front/back), filter, sensor. any i missed?


Oct 26, 2012 at 08:17 AM
zeljko
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p.1 #10 · p.1 #10 · 5d mk2 liveview sensor?


...Monitor, eyes...


Oct 26, 2012 at 09:34 AM
Monito
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p.1 #11 · p.1 #11 · 5d mk2 liveview sensor?


Sensor dust shows up as dark spots, not white.

If it shows up on the LCD in the same spot, no matter where you zoom in or zoom around, then it is a spot on the LCD, not the sensor.



Oct 26, 2012 at 10:20 AM
Monito
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p.1 #12 · p.1 #12 · 5d mk2 liveview sensor?


OPTICLE

OPTICAL



Oct 26, 2012 at 10:20 AM





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