EOS 1D Mk2 custom white balance problem

[Guest]

Archived from groups: rec.photo.digital (More info?)

Hi,

I use an Expo Disc to set custom white balance on a 1D Mk2 in my white
high-key studio. Once a custom white balance is set I would assume all shots
taken on that setting are using the same colour temperature.

This morning I've been testing different raw converters and I've found some
'interesting' problems. Capture One and RawShooter seem to have different
white balances when choosing 'as shot' for different images i.e. several
shots using the same custom white balance have different colour temps. The
shots are also very 'cold'. Bibble does a better job of producing more real
colours when using 'as shot'. Canon's Digital Photo Professional seems to
have consistent colour temps for all shots and importantly the colours look
correct on my calibrated screen. This leads me to think Capture One,
RawShooter and to a lesser extent Bibble are not using the custom white
balance information correctly.

I've seen lots of comments about Canon's DPP software being less capable
than these 3rd party converters. But my tests today do worry me.

Has anyone else tested this or seen similar problems.

For outdoor shots using auto colour balance then Capture One does a great
job. But I'm now having doubts about it's colour accuracy. I have noticed
previously that the colour temperature for the same image as reported by
these raw converters is different for each tool. This can't be right??!!

Thanks,
Graham.

------------------------------

Graham Russell Photography - www.grahamrussell.info
ProSportPhotos - www.prosportphotos.com

 

[Guest]

Archived from groups: rec.photo.digital (More info?)

>In the meantime you might want to browse the C1 user
>forums at www.rawworkflow.com for a lot more info

Graham, here are more direct links to the User Forums where this is
being discussed ...

http/www.pictureflow.com/forum/index.php ... look for the "Putting
all the 3.6 bugs in one basket" thread ... this is the Forum run by
Michael Tapes.

http/www.phaseone.com/content/support/forums.aspx ... this is the
Phase One site with links to several forums, including one directly
answered by Phase One and also Michael's English speaking Forum, which
has more participants.

Bill

 

[Guest]

Archived from groups: rec.photo.digital (More info?)

>Graham Russell writes ...
>
> I use an Expo Disc to set custom white balance on a 1D Mk2 ...
>
> Capture One and RawShooter seem to have different
> white balances when choosing 'as shot' for different iimages ...
>
>Has anyone else tested this or seen similar problems.

I use the 1D M II and both Capture One and RawShooter ... this is a
known bug with the latest version of C1 (V 3.6) and with RSE 1.1.
Basically Canon "hides" the custom white balance tag and these programs
didn't locate it properly, so you cannot use the custom white balance
feature with them, unfortunately.

> For outdoor shots using auto colour balance then Capture One does a
> great job.

I agree, which is why I use it. Supposedly the V3.7 release in May
will fix this. In the meantime you might want to browse the C1 user
forums at www.rawworkflow.com for a lot more info on this issue, which
is a real pain for many users.

Bill

 

[Guest]

Archived from groups: rec.photo.digital (More info?)

Bill, thanks for the info. At least I'm not doing something wrong!!

I'll just stick with Canon's DPP for now then. I'm very happy with the
images it produces. A nice addition would be the ability to see clipped
blacks and white when you adjust the end points of the histogram and the
dynamica range adjustment. Perhaps I've missed something with the tool, but
I haven't found it so far.

Graham.


"Bill Hilton" <bhilton665@aol.com> wrote in message
news:1111858105.628621.145120@g14g2000cwa.googlegroups.com...
> >In the meantime you might want to browse the C1 user
>>forums at www.rawworkflow.com for a lot more info
>
> Graham, here are more direct links to the User Forums where this is
> being discussed ...
>
> http/www.pictureflow.com/forum/index.php ... look for the "Putting
> all the 3.6 bugs in one basket" thread ... this is the Forum run by
> Michael Tapes.
>
> http/www.phaseone.com/content/support/forums.aspx ... this is the
> Phase One site with links to several forums, including one directly
> answered by Phase One and also Michael's English speaking Forum, which
> has more participants.
>
> Bill
>