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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 04 Dec 2008 (Thursday) 20:21
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5d mark II strange black dots?

 
Bill ­ Boehme
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Dec 05, 2008 19:45 |  #151

TheHoff wrote in post #6819742 (external link)
I suppose there is a small gyro in the camera so it knows which way you're holding it and it rotates the file appropriately, but I'll say that very likely the spots will appear on the top if you hold it the "typical way" with the shutter button rotated up and your right hand over the camera.

:lol:

A gyro would add a few K to the cost of a camera, not to mention that a gyro system wouldn't work on a camera anyway -- well, you could make it work, but first it would take a couple minutes to complete gyrocompassing and then compute local level. A gyro is an inertial instrument so it must keep track of latitude so that it can constantly update local level as the earth rotates.

The camera uses something that is very effective and cheap to handle orientation -- a simple switch operated by a pendulous weight. That is why the camera gets confused and doesn't know if it is in portrait or landscape mode when pointed towards the zenith or when pointed nearly straight down.


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str8six
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Dec 05, 2008 19:55 as a reply to  @ Bill Boehme's post |  #152

Do the cameras experiencing 'the problem' all have the same firmware? I read somewhere here on POTN that at least some 5DII's come with version 1.0.6 installed?


Regards, Len B
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Photon ­ Phil
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Dec 05, 2008 19:59 |  #153

This is all a shame. Can we stop the Nikon trial a rollin'?
This is not the holiday gift that Canon needed. Kind of like the store that charges your card $112 dollars for a $1.12 item. Oops!


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WillOPhotos
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Dec 05, 2008 20:30 as a reply to  @ Photon Phil's post |  #154

damn this forums gonna love this one! :p


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slitherjef
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Dec 05, 2008 20:33 |  #155

This makes me think twice about the 5DmkII. Right now, one of the reasons for me to have the camera would be long exposure astrophotography. Stars overexpose doing this and with using high-ISO (I usualy use 800 with my 20d), this would make the 5DmkII pretty much worthless for astrophotography.

Then to spend a nice chunk of change on a camera only to have to manualy fix problems that it should not have in the first place, to me, is just dumb.

I hope they get things fixed. Its probably a glitch where the software sees more then a value of 255 for the area in question and records a value of 0


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Tsmith
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Dec 05, 2008 20:56 |  #156

Kinda like the err 99 and 01 issues with the 50D when it was released.




  
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SlowBlink
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Dec 05, 2008 21:23 |  #157

When my toilet is acting up I jiggle the handle...anyone tried that?:rolleyes:


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Bill ­ Boehme
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Dec 05, 2008 21:32 |  #158

SlowBlink wrote in post #6822147 (external link)
When my toilet is acting up I jiggle the handle...anyone tried that?:rolleyes:

Yep, I tried it, but this thread ain't goin' down. :D


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x2x3x4x5x
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Dec 05, 2008 22:16 |  #159

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'

iso3200.

I think mine looks fine! :lol:



  
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str8six
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Dec 05, 2008 22:25 |  #160

I dunno about that! Even I'm starting to see black dots now ;)

Mine is in, and I'm picking it up tomorrow. 6 to 8 weeks for Grip and Batteries!?


Regards, Len B
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x2x3x4x5x
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Dec 05, 2008 22:30 |  #161

Mine is fine, otherwise. No black dots (and I shot over exposed street lights to check).

Grats Len. It's one hell of a camera.




  
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John
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Dec 05, 2008 22:35 |  #162

Glad your camera doesn't show this behavior. I would definitely look into it more though because there was someone in this thread that said that he couldn't replicate it with every shot.

Scary examples here:
http://submit.shutters​tock.com …topic.php?p=766​835#766835 (external link)

Even in the smaller version, you can make out the black spots on the white overblown lights.


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Nortelbert
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Dec 05, 2008 23:24 |  #163

str8six wrote in post #6822484 (external link)
I dunno about that! Even I'm starting to see black dots now ;)

Mine is in, and I'm picking it up tomorrow. 6 to 8 weeks for Grip and Batteries!?

Did you get yours from Saneal's in Calgary?




  
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MikeTheTeacher
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Dec 06, 2008 01:19 as a reply to  @ Nortelbert's post |  #164

PHOTOBUCKET EMBEDDING IS DISABLED BY THIS MEMBER.
Photobucket sends ads instead of embedding photos from their free galleries.
Click the link (if available) below to see the image in a gallery page.

http://i102.photobucke​t.com …zleT/Astronomy/​037aaa.jpg (external link)


I just got the black dots in this and other astrophotographs I took about an hour ago. ISO 6400 seems to produce most frequently.

These are the three stars in Orion's belt. The image has been rotated 90 degrees left so they appear as they would to eye in northern hemisphere.

Black dots/pixels/magic moonbeams evident in the three stars in the belt, and others.

Posted on Flickr if you want all the stats



  
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FlyingPhotog
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Dec 06, 2008 01:20 |  #165

bill boehme wrote in post #6822190 (external link)
Yep, I tried it, but this thread ain't goin' down. :D

<Reaches For Plunger>


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5d mark II strange black dots?
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