Subject: | Re: [OM] Visited Macau |
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From: | "Jeff Keller" <om-list@xxxxxxxxxxx> |
Date: | Sun, 15 Aug 2010 09:26:16 -0700 |
Hi Piers, :) yes, I briefly thought about my American frame of reference but I was tired ... Jeff -----Original Message----- From: Piers Hemy [mailto:piers@xxxxxxxx] Subject: Re: [OM] Visited Macau Ah, you mean a *rugby* football shaped aperture. I was confused for a moment... ;-) Piers -----Original Message----- From: Jeff Keller [mailto:om-list@xxxxxxxxxxx] Subject: Re: [OM] Visited Macau Hi Michael, I don't know if you've come across this: many LF cameras have the corners of the focus screen clipped off so that when everything is set up including the aperture stopped down you can look through the corners to see if the aperture is round. If your focus screen has clipped corners you should be able to see any mechanical vignetting show up as a football shaped aperture. --snip -- _________________________________________________________________ Options: http://lists.thomasclausen.net/mailman/listinfo/olympus Archives: http://lists.thomasclausen.net/mailman/private/olympus/ Themed Olympus Photo Exhibition: http://www.tope.nl/ |
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