Well, it does say that those factors 'contribute', not 'solely responsible'. It looks like several people have issues with the 75-300, even tho it doesn't meet the 'stereotype' mentioned in the other article I linked...
http://forum.keypublishing.co.uk/arc...p?t-46507.html
Quote:
|
The Canon 75-300 can be had for around £100 second hand, and should cost no more than £150 new. It's light, pretty sharp, suffers badly from flare and chromatic aberration (purple fringing of highlights). If you buy the (optional!) lens hood you will have less problems from flare but the purple fringing is a pain to post-process out of your shots.
|
http://www.paintedstork.com/digiblog...-300-lens.html
Quote:
|
You can almost be sure about images turning out with purple fringing if you are shooting something with sky as the background.
|
Some websites suggest it is a combination of factors, some are convinced it is a "sensor density/voltage leak problem", some are convinced it's the lens, but none of those people are real experts, so they are really just making assumptions based on their own personal experience. I'd be careful about blaming the lens alone, I guess the only way to be sure is as the post mentions above, try to take some test shots with a REALLY good lens and see if the problem persists. The problem is getting your hands on one without buying it, just to find out that wasn't the problem after all...