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All other DSLR's and Four Thirds, 4/3 All DSLRs excluding Canon and Nikon mounts ie Sigma, Pentax, Olympus, Sony, Leica R Back DSLRs and 4/3 System

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Old October 29th, 2010, 12:04 PM
Doug Kerr Doug Kerr is online now
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Default Mama Miya!

A fascinating announcement by Mamiya:

http://www.dpreview.com/news/1010/10...mamiyarz22.asp

This fascinating camera, the Mamiya RZ22, with a 48 x 36 mm, 22 megasensel sensor (clearly "larger than full frame" - how can that be?), is available at an announced US price of $11,499.00. Will, you can certainly afford that.

Now lets see - its crop factor would be about 0.72. That is, if we took the sensor of a full-frame 35-mm size digital camera, 36 x 24 mm in size, and cropped out of it a portion 48 x36 mm in size . . .

Oh, well, algebra confuses me.

Best regards,

Doug
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Old October 30th, 2010, 03:53 AM
Asher Kelman Asher Kelman is offline
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Quote:
Originally Posted by Doug Kerr View Post
A fascinating announcement by Mamiya:

http://www.dpreview.com/news/1010/10...mamiyarz22.asp

This fascinating camera, the Mamiya RZ22, with a 48 x 36 mm, 22 megasensel sensor (clearly "larger than full frame" - how can that be?), is available at an announced US price of $11,499.00. Will, you can certainly afford that.

Now lets see - its crop factor would be about 0.72. That is, if we took the sensor of a full-frame 35-mm size digital camera, 36 x 24 mm in size, and cropped out of it a portion 48 x36 mm in size . . .

Oh, well, algebra confuses me.

Best regards,

Doug
Doug,

For RZ owners, they already know and love the wonderful lenses and the versatile bellows for product and fashion. It's not really an expensive jump in price and an easy decision. The lenses are certainly in the highest echelon of choices for the pro and can be obtained used at good prices. For me, it's just too heavy! Still, it's really meant to be used on a tripod and then is without peer.

Asher
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Old October 31st, 2010, 07:47 AM
Will Thompson Will Thompson is offline
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Quote:
Originally Posted by Doug Kerr View Post
A fascinating announcement by Mamiya:

Now lets see - its crop factor would be about 0.72. That is, if we took the sensor of a full-frame 35-mm size digital camera, 36 x 24 mm in size, and cropped out of it a portion 48 x36 mm in size . . .
Hi doug.

Well actually in that camera system grouping 60 x 60 mm is usually considered full frame since it is medium format.
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Old October 31st, 2010, 07:07 PM
Doug Kerr Doug Kerr is online now
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Hi, Will,

Quote:
Originally Posted by Will Thompson View Post
Well actually in that camera system grouping 60 x 60 mm is usually considered full frame since it is medium format.
Then a Mamiya RB677 (56 x 76 mm) would be an 0.97x MF camera.

And that makes my EOS 40D a 2.2x MF camera!

Now, how big is full frame in an LF camera?

Best regards,

Doug
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Old December 30th, 2010, 07:11 PM
Maris Rusis Maris Rusis is offline
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Quote:
Originally Posted by Doug Kerr View Post
Hi, Will,



Then a Mamiya RB677 (56 x 76 mm) would be an 0.97x MF camera.

And that makes my EOS 40D a 2.2x MF camera!

Now, how big is full frame in an LF camera?

Best regards,

Doug
A quick peek in my latest Kodak catalogue shows a familiar large format film listed as 20.3cm X 25.4cm. By the time the film goes into the camera the rebates in the film holder reduce the picture area to 19.6cm X 24.7cm. I wonder where these values fall on the "MF scale" of camera magnitudes.
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