Re: [PanoToolsNG] Re: correction of optical flaws [was: Cozumel, Mexico pano]
- Thanx for thr link!!!!
I updated the page...
----- Original Message -----
From: Carl von Einem
Sent: Wednesday, August 30, 2006 7:56 AM
Subject: [PanoToolsNG] Re: correction of optical flaws [was: Cozumel, Mexico pano]
I find it sometimes difficult to follow a thread that moves away more
and more from what the subject indicates. Hope my interpretation of a
suitable subject line is ok.
My understanding of the principle differences between (perfect, prime)
fisheye and wide angle lenses is that a fisheye shouldn't suffer from
vignetting but has a moving NPP while a wide angle has a fixed NPP and
may show vignetting (on SLRs due to design needs to get enough space for
I don't adjust my scans (8mm FE Nikkor on film SLR, 12 and 15 mm wide
angle lenses on 35mm viewfinder camera, 20 mm equivalent on 6/7
viewfinder camera, also a 20 mm wide angle on film SLR) before stitching
but have enough overlap and a 16 bit workflow. That seems to be enough
for enblend to output nice panoramas.
So maybe these problems discussed can be minimized with just shooting
some more frames in smaller incriments to get more overlap (hey, most of
you work with a DSLR, I can do it with film!) or there is some other
problem like a real bad FE design or the "common idiot error" that is
described in the wiki. BTW I have to also sign that page
since I was stupid enough to mount the sun shade of my 12 mm wide angle
turned 90 degrees so that the part designed to protect the longer sides
of the frame shaded the shorter sides. Oooops... have to provide a
picture for it so one can see why this can technically happen.
Posted by: "Rick Drew"
> Actually it looks like the images need to be adjusted before stitching. The
> shot of the sign needs a lot more adjusting than the buildings. I'd correct
> them in photoshop side by side, then stitch, then adjust again if needed.
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