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Canon Powershot G5 Blue Cast Problem

File Name: CRW_0027.CRW
Camera Model Name: Canon PowerShot G5
Shooting Date/Time: 7/18/2004 1:30:10 PM
Shooting Mode: Program AE
Photo Effect Mode: Off
Shutter Speed: 1/100
Aperture Value: 4.0
Metering Mode: Evaluative
Exposure Compensation: 0
ISO Speed: 50
Lens: 7.2 - 28.8 mm
Focal Length: 14.4 mm
Digital Zoom: None
Image Size: 2592x1944
Image Quality: RAW
Flash: Off
White Balance: Auto
AF Mode: Continuous AF
File Size: 5556KB
Drive Mode: Single-frame shooting
1: Edge of trim 2: Edge of bumper
3: Leaves against sky 4: Edge of telephone pole
Canon G5: In mid July 2004, I purchased a Canon G5 digital camera. Within a couple of days, I discovered that the G5 has a major blue cast flaw and returned the camera!

Example Image: In 10 out of 25 sample pictures that I took testing the camera (of casual everyday objects and people), I later discovered an obvious 'blue cast', or fringing, to bright objects. And this 'blue cast' was present in RAW image files, meaning the problem is with the Canon G5, because that blue is not present in the real world (is it the CCD sensor, lens, or something else?). Somehow the G5 is creating blue where there is no blue. Review the image to the right. If using Internet Explorer, hover over the image to the right to see images details in the tool tip popup.

A known problem: After searching the Internet, it appears that this problem is known as Chromatic Abberations. Searching Google on 'Canon G5 Chromatic Aberration' turned up a lot of articles relating to this known problem with the Canon G5. For example, on the highly respected Digital Photography Review web site, in their review of the Canon G5, they mention the G5 issue with Chromatic Abberations.

Canon dismisses the problem: When I sent in an email support question into Canon on this issue, with an example image, the response that I got back was a complete dismissal of the problem:
Thank you for contacting Canon product support. I'm sorry to hear that your images have a blue cast.

Unfortunately, we are unable to accept or review sample images.

As with standard film photography, a small amount of "tweaking" or color correction is usually required to make images look their best. With film photography, this color correction is completed as the images are printed, by adjusting the amount, duration, and color of light projected through the negative and onto the emulsion of the photo paper. Other factors, such as the temperature and age of the photo processing chemistry, the film type, and the lighting conditions under which the images were captured, can also affect color balance.

In digital photography, the "middle man" is eliminated, and the photographer also becomes the photo processor. In addition to adjusting the options available in the camera (i.e. flash, ISO, white balance), it is sometimes necessary to adjust the images after they are downloaded to your computer, particularly if you have a predetermined color balance in mind.

Another factor to consider is how and where the final images are being viewed. If the images appear properly balanced on the camera's LCD display, but not on your computer monitor or when printed, then it will be necessary to contact your PC and printer manufacturers for assistance with calibrating these devices properly.
Chromatic Abberration Your Choice: The choice is yours. Do you want to purchase a digital camera from Canon, that claims you must now become a digital "middle man" and edit most of your digital pictures due to a flaw in their camera. Or, better yet, just switch to a different vendor and digital camera that does not have this problem. Before choosing a Canon camera, keep in mind Canon's ridiculous digital camera support. I have used many different digital cameras over the years, and the G5 clearly has a problem other digital cameras do not have.

Digital SLR: Or better yet, if you are really serious about getting a high quality digital camera, get a semi-pro digital SLR camera -- but only one that is "Highly Recommended" on Digital Photography Review, like a Nikon D70.

Copyright © 2018 Jerry Jongerius