G1 magenta cast to pictures

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Dave Lewis

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Well, yesterday and today, I used my G1 along a woodsy trout stream for the first time. This was one of the first real field tests since I got the camera a month ago. I found out two things today. First the ISO 50 sensitivity setting for a shady trout stream is not sufficient, especially with a polarizer in place. Most of my shots were at full aperature and 1/50 of a second or slower. That was not sufficient to prevent camera shake and many of the shots were simply not up to the sharpness I am used to with the G1. Yesterday, I went a little earlier in the day and didn't use the polarizer and the shutter speeds were fast enough to avoid camera shake. Unfortunately many of those shots were a little over exposed, though with just a -1/3 compensation setting. Today's shots were a little better with -2/3.

Second observation is that many of the shots had some magenta cast to them. I think I remember reading someone else's posts on here confirming some magenta problems with the G1. I know some of that was chromatic aberration related, but some was just there for no apparent rason. Yesterday I used auto white balance. Today I used bright sun. Has anybody tried another white balance setting that will avoid the magenta cast under most outside light circumstances.
 
See my previous post. All white balance settings on the G1 not accurate. I leave mine on daylight all the time for consistency, then apply the solution as described the other post off-camera.

http://www.dpreview.com/forums/read.asp?forum=1010&page=2&message=1043570

Michael
Well, yesterday and today, I used my G1 along a woodsy trout stream
for the first time. This was one of the first real field tests
since I got the camera a month ago. I found out two things today.
First the ISO 50 sensitivity setting for a shady trout stream is
not sufficient, especially with a polarizer in place. Most of my
shots were at full aperature and 1/50 of a second or slower. That
was not sufficient to prevent camera shake and many of the shots
were simply not up to the sharpness I am used to with the G1.
Yesterday, I went a little earlier in the day and didn't use the
polarizer and the shutter speeds were fast enough to avoid camera
shake. Unfortunately many of those shots were a little over
exposed, though with just a -1/3 compensation setting. Today's
shots were a little better with -2/3.

Second observation is that many of the shots had some magenta cast
to them. I think I remember reading someone else's posts on here
confirming some magenta problems with the G1. I know some of that
was chromatic aberration related, but some was just there for no
apparent rason. Yesterday I used auto white balance. Today I used
bright sun. Has anybody tried another white balance setting that
will avoid the magenta cast under most outside light circumstances.
 
I had a really bad case of the magenta cast. So bad that I sent the camera along with photos unedited and edited to Cannon along with photos from a cheap Agfa cl30 and a Nikon 880 so the could see the difference and how awfull a picture it produced. I had tried everything everyone had suggested and had no success. I am very dissapointed in canon for this as to find out it is lots more common then we know and Canon reply seems to be that this is normal and the pics will need editing. I should hear more from them in a day or two and will let you know the conclusion. All I can say is Canon seems to be getting cheaper cameras and thicker wallets at our expense. If they cannot fix it then I will swear off Canon products for ever as this is not my first bad experience with Canon products.
Well, yesterday and today, I used my G1 along a woodsy trout stream
for the first time. This was one of the first real field tests
since I got the camera a month ago. I found out two things today.
First the ISO 50 sensitivity setting for a shady trout stream is
not sufficient, especially with a polarizer in place. Most of my
shots were at full aperature and 1/50 of a second or slower. That
was not sufficient to prevent camera shake and many of the shots
were simply not up to the sharpness I am used to with the G1.
Yesterday, I went a little earlier in the day and didn't use the
polarizer and the shutter speeds were fast enough to avoid camera
shake. Unfortunately many of those shots were a little over
exposed, though with just a -1/3 compensation setting. Today's
shots were a little better with -2/3.

Second observation is that many of the shots had some magenta cast
to them. I think I remember reading someone else's posts on here
confirming some magenta problems with the G1. I know some of that
was chromatic aberration related, but some was just there for no
apparent rason. Yesterday I used auto white balance. Today I used
bright sun. Has anybody tried another white balance setting that
will avoid the magenta cast under most outside light circumstances.
 
http://www.qbeo.com as mentioned in my other post. Make sure to download MAC version.

Michael
See my previous post. All white balance settings on the G1 not
accurate. I leave mine on daylight all the time for consistency,
then apply the solution as described the other post off-camera.

http://www.dpreview.com/forums/read.asp?forum=1010&page=2&message=1043570
Thanks, Michael. How do I get photogenetics and will it work in a mac.
 
I'm surprised to hear that Photogenetic doesn't work for you. Are you sure you done it right? It works for me in just about every situation. Not only correcting magenta cast but other color problems and well. If you need help, let me know.

Michael
Well, yesterday and today, I used my G1 along a woodsy trout stream
for the first time. This was one of the first real field tests
since I got the camera a month ago. I found out two things today.
First the ISO 50 sensitivity setting for a shady trout stream is
not sufficient, especially with a polarizer in place. Most of my
shots were at full aperature and 1/50 of a second or slower. That
was not sufficient to prevent camera shake and many of the shots
were simply not up to the sharpness I am used to with the G1.
Yesterday, I went a little earlier in the day and didn't use the
polarizer and the shutter speeds were fast enough to avoid camera
shake. Unfortunately many of those shots were a little over
exposed, though with just a -1/3 compensation setting. Today's
shots were a little better with -2/3.

Second observation is that many of the shots had some magenta cast
to them. I think I remember reading someone else's posts on here
confirming some magenta problems with the G1. I know some of that
was chromatic aberration related, but some was just there for no
apparent rason. Yesterday I used auto white balance. Today I used
bright sun. Has anybody tried another white balance setting that
will avoid the magenta cast under most outside light circumstances.
 
Having said that Photogenetic works, I still agree with you that Canon did a terrible job in this regard. My previous cam Toshiba PDR-M70's auto color balance is 100 times better. Nevertheless, pictures from G1 after Photogenetic correction is far better those from PDR-M70 (which is poor in details like having a soft focus lens on all the time and this cannot be corrected by any software - thus I returned it).

Michael.
Well, yesterday and today, I used my G1 along a woodsy trout stream
for the first time. This was one of the first real field tests
since I got the camera a month ago. I found out two things today.
First the ISO 50 sensitivity setting for a shady trout stream is
not sufficient, especially with a polarizer in place. Most of my
shots were at full aperature and 1/50 of a second or slower. That
was not sufficient to prevent camera shake and many of the shots
were simply not up to the sharpness I am used to with the G1.
Yesterday, I went a little earlier in the day and didn't use the
polarizer and the shutter speeds were fast enough to avoid camera
shake. Unfortunately many of those shots were a little over
exposed, though with just a -1/3 compensation setting. Today's
shots were a little better with -2/3.

Second observation is that many of the shots had some magenta cast
to them. I think I remember reading someone else's posts on here
confirming some magenta problems with the G1. I know some of that
was chromatic aberration related, but some was just there for no
apparent rason. Yesterday I used auto white balance. Today I used
bright sun. Has anybody tried another white balance setting that
will avoid the magenta cast under most outside light circumstances.
 
Michael
See my previous post. All white balance settings on the G1 not
accurate. I leave mine on daylight all the time for consistency,
then apply the solution as described the other post off-camera.

http://www.dpreview.com/forums/read.asp?forum=1010&page=2&message=1043570
Thanks, Michael. How do I get photogenetics and will it work in a mac.
Thanks a bunch, Michael. I'll give it a try.
Dave
 
See my previous post. All white balance settings on the G1 not
accurate. I leave mine on daylight all the time for consistency,
then apply the solution as described the other post off-camera.

http://www.dpreview.com/forums/read.asp?forum=1010&page=2&message=1043570

Michael
OK, I played with it just a little bit. My first feelings are that it is a little too much like voodoo. In most cases it does about what Auto Levels in Photoshop does - adjust contrast and brightness, midtone gamma, and tweak colors a bit. Clicking through samples to get the best one doesn't let me end up with anything definable. Now those genotype combinations Michael speaks of might well be very handy, though. I didn't have the opportunity to try them. I didn't download the trial version because it is over 5 mg for the mac and would take forever with this dialup connection. I think maybe I would be best to set up an action in Photoshop to deal with the magenta cast. Actually I have one I set up to deal with chromatic aberration and it works pretty well on the magental cast as well.
 
photogenetics is ok... there was also another proggie that was called something like dcenhance... can't remember it's name for the life of me... had it on my laptop before the reformat and it worked kinda ok... did pretty much the same thing photogenetics did...
I think http://www.photobox.co.uk are offering the full version of
Photogenetics 2 for free at the moment. I download my full version
from there, the address is:

http://www.photobox.co.uk/pg2

if memory serves correct. I think Windows and Mac versions are
available.
Looks like it's free if you order something from PhotoBox. You can
get the free 30 day trial version from there or from the home site,
though.
 
photogenetics is ok... there was also another proggie that was
called something like dcenhance... can't remember it's name for the
life of me... had it on my laptop before the reformat and it worked
kinda ok... did pretty much the same thing photogenetics did...
It's called Intelihence. I've tried it too. It worked well with my scanned images before I got the digitals. I have since learned much more about Photoshop and don't need it. It was a Photoshop plug in.
 
photogenetics is ok... there was also another proggie that was
called something like dcenhance... can't remember it's name for the
life of me... had it on my laptop before the reformat and it worked
kinda ok... did pretty much the same thing photogenetics did...
way to go, pasha!

if you want to get the most out of your images you can't just rely on "cheap" tricks or plug ins. go the extra mile. learn and get some digital darkroom skillz. every picture you take will be different and requires individual treatment.
in fact, you may even benefit from that minor G1 mangeta glitch ...
 
Hate to admit but there's some truth to that. I learned a great deal about color & digital darkroom thing because of this magenta mess. A "Cheap" trick does get you to the ballpark very quickly though. From then you can fine tune to perfection, according to your taste that is. There's no need to spend the labor unnecessarily. Steve Digicam states in his review "every digicam owner should own Photogenetic" beginner or expert alike, and I fully agree.

Michael
photogenetics is ok... there was also another proggie that was
called something like dcenhance... can't remember it's name for the
life of me... had it on my laptop before the reformat and it worked
kinda ok... did pretty much the same thing photogenetics did...
way to go, pasha!
if you want to get the most out of your images you can't just rely
on "cheap" tricks or plug ins. go the extra mile. learn and get
some digital darkroom skillz. every picture you take will be
different and requires individual treatment.
in fact, you may even benefit from that minor G1 mangeta glitch ...
 

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