The only problem is the mirror size with a larger than full 24 x 36 mm format. Clearance with the rear element is an issue. Coverage of the circle of confusion is not the issue here. The lenses will cover anything up to 36 x 36 mm. But mirror clearance is the issue as I see it and the larger the mirror the slower the max. shutter speeds.
Dave----- Original Message ----- From: "Steve Barbour" <kididdoc@xxxxxxx>
To: <leicareflex@xxxxxxxxxxxxx> Sent: Monday, December 03, 2007 5:30 PM Subject: [LRflex] Re: a 4/3 sensor to match the 36mm size?
On Dec 3, 2007, at 4:19 PM, David Young wrote:Philippe wrote:Do you mean that current R optics provide a larger circle than needed for the 35mm format?Yes. The diagonal of a 24x36mm frame is 43.27mm ... so any lens capable of covering a 35mm format, must have an image circle greater than 43.3 mm. Thus, current optics would easily cover a 27mm by x36mm sensor.This would destroy many claims made here that with 35mm format you use them to the full.Well, you do, but there is a wee bit more in them!very, very clever David... :-) Steve--- David Young, Logan Lake, CANADA Wildlife Photographs: http://www.telyt.com/ Personal Web-pages: http://www3.telus.net/~telyt Stock Photography at: http://tinyurl.com/2amll4 ------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: //www.freelists.org/archives/leicareflex/------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: //www.freelists.org/archives/leicareflex/ -- No virus found in this incoming message.Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.16.13/1167 - Release Date: 12/3/2007 12:20 PM
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