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35mm FORMAT MODE

carrot
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carrot Apprentice

carrot

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The manual says that "35mm Format Mode" changes the aspect ratio to 35mm 3:2.

I tested this out with the same photo, first in L3:2 Mode, then in 35mm mode.

The L3:2 photo EXIF data showed an image size 11,648 x 7,768.  The 35mm Mode photo EXIF data showed an image size 9,552 x 6,368.

Firstly, not sure why the L3:2 wasn't 11,648 x 8,736 per the manual ... any ideas anyone?

Secondly, why is the 35mm mode shot completely different ... any ideas anyone?

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  • 4 weeks later...
brianco Rookie

brianco

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The sensor is 43.8mm x 32.9mm. A 35mm negative is 36mm x 24mm.  36mm/43.8mm * 11,648 pixels = 9573. 

35mm mode just crops to the middle of the sensor in a section that's the size of a 35mm negative. This would be the area that "full frame" lenses are designed to cover. I assume it would be useful if you adapt a lens designed for "full frame" and don't want the vignetting that happens where the medium format sensor is larger than the lens was designed for.

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  • 1 year later...
alfonso batalla Newbie

alfonso batalla

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Hi,

I have read in the forums that changing aspect ratio wont afect the raw file, and only when shooting raw+jpg ACR, Lightroom and other software 3:2 crop will be shown

I have quite the opposite issue...

I have found that (after posibly lending my camera to a partner) it has shot plenty of pictures in raw mode (not raw+jpg) in 35 mm (9552x6368) ratio.

I thought that that didnt affect raw files that should be original 4:3 (11648x8736), but, in fact both ACR and Lightroom import the raw file in 3:2 crop!!!

Is anything I can do to recover original files?

Thanks

 

Alfonso

 

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alfonso batalla Newbie

alfonso batalla

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Posted

Well, I found the reason for this issue.

It seems that (possibly after firmware upgrade) under the Shooting Setting (not IQ) menu there is a 35mm FOMAT MODE (on, off, auto) that, if set to AUTO, changes to 35mm as soon as the camera detects a 35mm lens!

I was using Canon TSE lenses and have never had this issue. I discovered it by chance shooting wothout a lens and later checking format in lightroom for Fugi lenses.

I guess you should bear this in mind. The option may be aceptable, but how it appeared in my camera with no further notice isnt.

BTW: I am still unable to recover those raw files to 4:3 format.

Any hint?

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  • 2 weeks later...
man-overboard Contributor

man-overboard

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On 3/29/2022 at 5:59 AM, brianco said:

The sensor is 43.8mm x 32.9mm. A 35mm negative is 36mm x 24mm.  36mm/43.8mm * 11,648 pixels = 9573. 

35mm mode just crops to the middle of the sensor in a section that's the size of a 35mm negative. This would be the area that "full frame" lenses are designed to cover. I assume it would be useful if you adapt a lens designed for "full frame" and don't want the vignetting that happens where the medium format sensor is larger than the lens was designed for.

That makes total sense to me.

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man-overboard Contributor

man-overboard

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Posted
On 5/24/2023 at 11:50 AM, alfonso batalla said:

Well, I found the reason for this issue.

It seems that (possibly after firmware upgrade) under the Shooting Setting (not IQ) menu there is a 35mm FOMAT MODE (on, off, auto) that, if set to AUTO, changes to 35mm as soon as the camera detects a 35mm lens!

I was using Canon TSE lenses and have never had this issue. I discovered it by chance shooting wothout a lens and later checking format in lightroom for Fugi lenses.

I guess you should bear this in mind. The option may be aceptable, but how it appeared in my camera with no further notice isnt.

BTW: I am still unable to recover those raw files to 4:3 format.

Any hint?

That is an interesting question I hope you get a resolution I would like to see that.

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