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-   -   Wolfgang has posted more stills/videos comparing FX7 & A1 (https://www.dvinfo.net/forum/general-hd-720-1080-acquisition/82118-wolfgang-has-posted-more-stills-videos-comparing-fx7-a1.html)

Rick Hensley December 19th, 2006 08:43 PM

Wolfgang has posted more stills/videos comparing FX7 & A1
 
http://translate.google.com/translat...language_tools

comparison still pictures, videos, including full zoom camparison videos
and A1 presets example stills

Your comments should be interesting...

Rick Hensley December 20th, 2006 04:09 PM

When I capture a still from his zoom test movies, I see this:

canon: magenta halos on left side of vertical lines (color under-sampling?)
sony: black lines on left of vertical lines ( too high sharpening?)

also the sony image seems sharper with more resolution (too much?)

Anyone else notice these things? or is it just my computer? I realize that i am far from the original source bits at this point.

Again one wonders if either camera is set up optimally.

Dave F. Nelson December 23rd, 2006 10:04 AM

Quote:

Originally Posted by Rick Hensley
When I capture a still from his zoom test movies, I see this:

canon: magenta halos on left side of vertical lines (color under-sampling?)
sony: black lines on left of vertical lines ( too high sharpening?)

also the sony image seems sharper with more resolution (too much?)

Anyone else notice these things? or is it just my computer? I realize that i am far from the original source bits at this point.

Again one wonders if either camera is set up optimally.

No this is not your computer. The red and green fringing you see in the A1 clips and footage is a characteristic of the Canon's lens. I own an XL-H1 with exactly the same problems. The Canon XH-A1, XH-G1 and XL-H1 all use essentially the same lens and therefore have the same red and green fringing problems.

This is a lens issue. Most people call this Chromatic Aberration. I am a shooter so I'm not interested in what it is called. I am interested in ways to minimize it in my shots. Whatever you call it, it is prominent in most Canon footage.

Canon has introduced a new 6X lens for the XL-H1 which appears to have much less of this red and green fringing. I am considering this lens. The problem is that for very little more than the cost of the lens, I can buy a V1.

When I use the Canon XL-H1 for important shots, I try not to use the wide or long ends of the zoom range, and I stay away from anything below f3.6. I tend to shoot in the middle of the lens's zoom range (the sweet spot) where this red and green fringing is minimal.

The Sony V1U has this same red and green fringing characteristic, but to a lesser degree, at least in the photos and clips I have seen so far. I am waiting to get more photos and clips and I want to see what the reviewers say about the V1.

So far the anecdotal evidence indicates that the Sony V1 has less problems than the Canon with red and green fringing. However only time will tell as more clips and photos appear and the reviews come out.

Raymond Toussaint December 24th, 2006 08:38 AM

May I say that Wolfgangs blog (look at any page on his blog) is completely directed to Sony equipment? For him Canon is strange. The highway Canon shot is way over top with Gain, that is why you see so much surrounding. It can be done much better.


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