Re: [PanoToolsNG] Gigapan & Canon G9 examples
- Bernhard Vogl wrote:
> I didn't use RAW files. My cards are 8GB which is too small to shootI think the vignetting might also be amplified by the image processing
> Gigapixels in RAW mode.
> I could de-vignette the images with PTLens before feeding them to the
in camera. I don't have my G9 yet and don't feel like mucking around
with CHDK on the A640 to test this, but it seems like the vignetting in
the sky only happens in featureless frames.
My theory is that the JPEG processing is turning up the contrast when
presented with a featureless image, thus making the corners darker.
- That should be obvious.. heh.
Prime versus zoom.
The problem, is 28 isn't really wide enough to be really useful for a lot of
interior work, and composition without zoom and difficult to say the least,
since you often don't have placement luxury.
As an exterior lens, I'm sure it's a great lens to have.
I've always wondered how the MK2 stacks up against, the 10-22, since you
aren't using the outer parts of the lens with the 10-22.
Southern Digital Solutions LLC
From: PanoToolsNG@yahoogroups.com [mailto:PanoToolsNG@yahoogroups.com] On
Behalf Of Matthew Rogers
Sent: Tuesday, September 23, 2008 12:05 PM
Subject: Re: [PanoToolsNG] Re: Visible image degadation
Well I've tested the 28 f1.8 and 28 f2.8 against the 16-35 MKI/MK2 and
even the 28 f2.8 easily beats the 16-35 @28 for resolution and
sharpness. The 28mm f1.8 kills it.
On 23 Sep 2008, at 15:50, Sacha Griffin wrote:
> I thought the resolution displayed on the landscape was "decent".
> The shot
> was just a little fuzzy, most likely due to the obvious aberration
> all over the image.
> From what I've heard the 16-35 canon zoom, (canon, zoom, even wider)
> is a
> real hummer of a lens and a different beast altogether than this
> The portrait was a good display of the highlight priority perhaps.
> The landscape wasn't a good example of anything really.
> Sacha Griffin
> Southern Digital Solutions LLC
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