Go Back   Steve's Digicams Forums >

LinkBack Thread Tools Search this Thread
Old Jan 9, 2004, 9:29 AM   #1
Junior Member
Scae's Avatar
Join Date: Jan 2004
Posts: 3
Default Purple Fringing: IXUS 400 (S400) vs IXUS II (SD100)

Um, I really hope I got the camera names right.

I'm looking to buy one of these: But the 400 is out of my price range (by 50) and the IXUS II is considerably cheaper.

My question is that is purple fringing that the II apparently suffers from very noticable? Is the 400 any better, better enough to warrant the extra 130 is seems to cost.

Essentially I want to know what is the difference between these camera's: Their specs seem to suggest that there's a 0.8mpixel difference and that's it

I hope that's specific enough as per the 'Re: "The Worst Question"' thread ^.^
Scae is offline   Reply With Quote
Sponsored Links
Old Jan 11, 2004, 8:43 AM   #2
Senior Member
voxmagna's Avatar
Join Date: Aug 2002
Posts: 2,162

You will see purple fringing on most compacts. Some manufacturers like Nikon and Minolta have special lenses to reduce it and it worked on a Minolta I bought - but there were really good features on the Canon I liked, in the end I put up with the minusus of the Minolta for its lens.

Chromatic Abberation (or CA), is difficult to quantify on a scale, camera to camera. Its prominence can vary with the type of scene and lighting. For example, shoot a line of trees against a flat grey sky, look at the tree branches and you'll probably see it at 100-200X in Photoshop. Over expose to clip the sky and get a silhouette look on the trees - and you probably won't. Personally I didn't like it 'cos I think it destroys the edge resolution you think you're getting with high Mpix. Whilst there are some masking tricks you can do with PS, they don't bring back the edge sharpness and it's a painful process to fix lots of pics.

For small prints CA will probably not be that noticeable. But if you're looking at over 3Mpix cameras for larger or cropped, prints then it may be.
voxmagna is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 5:31 PM.