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Re: [OM] IMG: three new panoramas

Subject: Re: [OM] IMG: three new panoramas
From: Jan Steinman <Jan@xxxxxxxxxxxxxx>
Date: Thu, 25 Jun 2009 11:29:23 -0700
> From: Ralf Loi <enys_ybv@xxxxxxxxxx>
>
> <<
> I see the dark bands in the sky which look like the image is not well
> blended in those parts.
>>>
>
> I think that this problem is related (also) to vignetting of the lens,
> more visible on an uniform area like the sky.

Yea, such excrement occurs.

In the thread about DOF, I posted my panorama done with the Zuiko  
180/2.8. It took days to bring together.

What I ended up doing was taking a one-pixel horizontal slice of the  
sky, converting it to gray, replicating it across the image, then  
using it as a mask to a contrast/brightness adjustment layer. That got  
rid of most visible banding, but it was a pain in the but to do!

I also did a pano with the Zuiko 21/3.5 that was essentially unusable.

The best OM Zuiko for panos, IMHO? The 24/3.5 shift.


:::: When are you [the US] going to stop trying to export democracy  
and consider importing it? -- Andrew Fildes ::::
:::: Jan Steinman http://www.VeggieVanGogh.com ::::




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