LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)

Started Dec 8, 2008 | Discussions
f_stops
Contributing MemberPosts: 565Gear list
Like?
LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
Dec 8, 2008

Just picked up my 5dII, and sure enough, I see black dots out of the box.

At iso 400 and iso 6400, with a 50/1.8 and 85/1.2L II. I took a few dozen shots, and they are easily duplicated.

I then turned the settings to "Disable" for highlight tone priority, lighting optimizer and noise reduction.

No black dots.

I have only had the camera for an hour, but hopefully this solves the problem. Any other 5dII owners - please give it a try.

200%
Default settings top iso 6400/400
optimizer/noise reduction disabled iso 6400/400
dng> CS3

 f_stops's gear list:f_stops's gear list
Leica M9
RichW
Forum ProPosts: 12,759Gear list
Like?
Great job, now which one causes the problem?....
In reply to f_stops, Dec 8, 2008

It can't be all three can it be??

Rich

 RichW's gear list:RichW's gear list
Canon EOS 5D Mark III Canon EF 17-40mm f/4.0L USM Canon EF 20mm f/2.8 USM Canon EF 24-70mm f/2.8L USM Canon EF 24-105mm f/4L IS USM +5 more
Reply   Reply with quote   Complain
LeviBuzolic
Junior MemberPosts: 41
Like?
Re: LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
In reply to f_stops, Dec 8, 2008

Nice work, I had a feeling the fix would be pretty simple, everybody just got a little to excited about the whole thing.

Reply   Reply with quote   Complain
grammieb14
Senior MemberPosts: 2,035Gear list
Like?
Re: Great job, now which one causes the problem?....
In reply to RichW, Dec 8, 2008

Try turning them on one at a time & see what happens when taking a photo of lights. Sort of like feeding a baby one new food at a time to see if one causes allergies.
--
One day I'll learn how to post photos. I am 61 & technically challenged.

 grammieb14's gear list:grammieb14's gear list
Canon EOS 5D Mark III Canon EOS 100D Canon EF 20-35mm f/3.5-4.5 USM Canon EF 24-105mm f/4L IS USM Canon EF 35mm f/2.0 +18 more
Reply   Reply with quote   Complain
fredlord
Senior MemberPosts: 2,315
Like?
Re: LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
In reply to f_stops, Dec 8, 2008

You're a hero, dude. Good work!

I guess we'll try all the fixes until it's isolated.

Reply   Reply with quote   Complain
TenSafeFrogs
Junior MemberPosts: 29
Like?
Re: Great job, now which one causes the problem?....
In reply to RichW, Dec 8, 2008

yeah, do you have to turn off all 3? could you re-enable each of those selectively and figure out what the exact cause is?

Reply   Reply with quote   Complain
GeorgeML
Contributing MemberPosts: 574
Like?
Re: LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
In reply to fredlord, Dec 8, 2008

fredlord wrote:

You're a hero, dude. Good work!

+1.
LOL.

Reply   Reply with quote   Complain
uphillslide
Regular MemberPosts: 290
Like?
Re: LOOK MA, THEY'RE GONE!
In reply to fredlord, Dec 8, 2008

Nice work. Wow

Reply   Reply with quote   Complain
submagination
Senior MemberPosts: 1,078
Like?
So the remaining question is...
In reply to f_stops, Dec 8, 2008

If it can be tracked down to a single feature (or even the interaction between a few), can/will Canon identify the conflicting software logic and release a fix in a future firmware update?

Here's hoping.
--

Website: http://mikebrum.com/
Photoblog: http://submagination.com/
Filckr: http://www.flickr.com/photos/mikebrum/

Reply   Reply with quote   Complain
slerman
Regular MemberPosts: 182
Like?
Re: LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
In reply to f_stops, Dec 8, 2008

I shot ISO 2000 images at around f5.6 at 1/125th in Times Square on Friday night and had no black spots or other odd artifacts. Highlight tone priority, lighting optimizer, and noise reduction were all off.

Reply   Reply with quote   Complain
stuart melnikoff
Regular MemberPosts: 269
Like?
Re: LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
In reply to slerman, Dec 8, 2008

Great job tracking down the problem.

slerman wrote:

I shot ISO 2000 images at around f5.6 at 1/125th in Times Square on
Friday night and had no black spots or other odd artifacts. Highlight
tone priority, lighting optimizer, and noise reduction were all off.
--

Reply   Reply with quote   Complain
Oak and Acorn
Veteran MemberPosts: 6,124
Like?
It's a really darn shame
In reply to f_stops, Dec 8, 2008

that it took so much detail robbing noise removal to accomplish however.

f_stops wrote:

Just picked up my 5dII, and sure enough, I see black dots out of the
box.

At iso 400 and iso 6400, with a 50/1.8 and 85/1.2L II. I took a few
dozen shots, and they are easily duplicated.

I then turned the settings to "Disable" for highlight tone priority,
lighting optimizer and noise reduction.

No black dots.

I have only had the camera for an hour, but hopefully this solves the
problem. Any other 5dII owners - please give it a try.

200%
Default settings top iso 6400/400
optimizer/noise reduction disabled iso 6400/400
dng> CS3

Reply   Reply with quote   Complain
Michael Mohrmann
Senior MemberPosts: 2,117
Like?
Re: Great job, now which one causes the problem?....
In reply to grammieb14, Dec 8, 2008

grammieb14 wrote:

Try turning them on one at a time & see what happens when taking a
photo of lights. Sort of like feeding a baby one new food at a time
to see if one causes allergies.

That may isolate it, or it may be that a combination of settings is needed to produce the problem. Given the available options for each of the three functions (highlight tone priority, lighting optimizer, noise reduction), it may take several tests to actually track down the combination(s) that cause the problem.

Reply   Reply with quote   Complain
Steve Galle
Regular MemberPosts: 101
Like?
Re: LOOK MA, THEY'RE GONE! (How to Eliminate Black Dots)
In reply to f_stops, Dec 8, 2008

This is fantastic; if it's an interaction between these features it will be possible to fix in firmware. Or, just avoid. I've had no black dots so far, I'll turn on the apropriate features and see if I can reproduce them.

I'd love to see the looks on the faces of anyone who canceled orders over this... DOH!

Thanks for digging into the problem.

-- hide signature --

Steve

Reply   Reply with quote   Complain
Rick Knepper
Veteran MemberPosts: 9,598Gear list
Like?
Thanks, I never intended to use any of that stuff anyway. nt
In reply to f_stops, Dec 8, 2008
n/t
 Rick Knepper's gear list:Rick Knepper's gear list
Nikon D3X Nikon D800E Canon EOS 5D Mark III Canon EOS 6D Canon EF 100mm f/2.8L Macro IS USM +16 more
Reply   Reply with quote   Complain
Oak and Acorn
Veteran MemberPosts: 6,124
Like?
Ah, I see what you did now - excellent find on the fix!
In reply to Oak and Acorn, Dec 8, 2008

Sorry, missed the difference in the two sets of shots. Awesome discovery on the fix.

Reply   Reply with quote   Complain
Kagetsu
Regular MemberPosts: 250Gear list
Like?
Unlikely to be Noise reduction, most likely Highlight priority, or Optimiser. NT
In reply to f_stops, Dec 8, 2008

None of that text here.

 Kagetsu's gear list:Kagetsu's gear list
Sony RX100
Reply   Reply with quote   Complain
commangor
Regular MemberPosts: 314
Like?
Re: Unlikely to be Noise reduction, most likely Highlight priority, or Optimiser. NT
In reply to Kagetsu, Dec 8, 2008

Glad to hear this news, almost collected my 5d2 last week but have to say sorry to the dealer because of this issue, looks like the fix is coming very soon..

-- hide signature --

No hesitation when capturing moments.

Helping other is doing good for yourself, and treating the earth a little better will help the next generation.
http://moments.zenfolio.com

Reply   Reply with quote   Complain
Rcihardc
Contributing MemberPosts: 873
Like?
something is wrong
In reply to f_stops, Dec 8, 2008

how come one of the images looks so processed? plus NR and ALO have no effect on RAW you can disable them in DPP, the black dots are in RAW data

f_stops wrote:

Just picked up my 5dII, and sure enough, I see black dots out of the
box.

At iso 400 and iso 6400, with a 50/1.8 and 85/1.2L II. I took a few
dozen shots, and they are easily duplicated.

I then turned the settings to "Disable" for highlight tone priority,
lighting optimizer and noise reduction.

No black dots.

I have only had the camera for an hour, but hopefully this solves the
problem. Any other 5dII owners - please give it a try.

200%
Default settings top iso 6400/400
optimizer/noise reduction disabled iso 6400/400
dng> CS3

-- hide signature --

Richard, NC
Never comment on something you don't know about

Reply   Reply with quote   Complain
Fovea
Contributing MemberPosts: 747
Like?
We need some other testers...
In reply to f_stops, Dec 8, 2008

Great job. How come nobody else found the workaround though?

I guess it's because most of us worried posters don't own the camera yet

So please lucky owners, post some confirmations!

Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum MMy threads