Weird vignetting

Jan Brittenson

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May 7, 2005
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This has me stumped. On one of my rolls from India, every frame from the first to last (220) shows vignetting. But not just any old kind, it's in diagonally opposite corners -- lower left and upper right. The other two are just fine!

It's only on this roll. I used both the 43 and 150 lenses, swapped once or twice, and the shots all show it with no change between lens changes. All sorts of apertures. It's just too strange...

I'll scan a sample and post. But it really looks exactly like it sounds, like an object blocked diagonally opposite corners! No filters, just the plain plastic hoods. It all looks properly in focus under a 22x loupe, so doesn't look like the pressure plate was in the 120 position.

Any ideas?!
 
Jan, Sorry this is OT but, I tried to see your photos from India, but when I click on the link in your Sig a very dinky sub window opens to your gallery but as its only the size of your sig its pritty useless.. Perhaps you need to have a look at the HTML in your Sig.
Mike.
Nice Red dot.
 
Oh, wow that pretty wild looking! :) I'll see if I can fix it...
Update:
OK, it seems fixed now. FireFox though seems to stubbornly reuse the old version in its cache, and I can't find a way to force it to reload (I did the signature as an iframe, which is a separate frame loaded from my webserver, embedded into the parent page). Safari and IE (on Mac) follow the link correctly in the top window, but firefox is using the old version. If this is happening to you because your browser is using the old version of the sig, hold down the shift key while clicking the link and you should get a new window, always. Sorry about that...
 
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I don't suppose you had a rectangular lens hood that got rotated significantly? Nah... you would surely have noticed that in the process of shooting 20/21 shots...
 
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