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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 07 Mar 2010 (Sunday) 19:50
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1.3x shrinking

 
hpulley
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Mar 07, 2010 19:50 |  #1

Anyone else noticed that 1.3x is shrinking over time? I did a search but saw nothing. Sorry for the lack of formating/table:

1D 28.7 × 19.1 mm 1.25x
1D Mk II 28.7 × 19.1 mm 1.25x
1D Mk III 28.1 × 18.7 mm 1.28x
1D Mk IV 27.9 × 18.6 mm 1.29x

It looks like the Mark IV is finally close to 1.3x. I know the differences aren't huge but it is an interesting trend.

1.6x was going down but recently went back up a tad. It wasn't quite the drop in size that the 1D II to III had though. These are all pretty close to 1.6x.


Canon EOS 10D 22.7 x 15.1mm 1.59x
Canon EOS 20D 22.5 x 15.0mm 1.6x
Canon EOS 30D 22.5 x 15.0mm 1.6x
Canon EOS 40D 22.2 x 14.8mm 1.62x
Canon EOS 50D 22.3 x 14.9mm 1.61x
Canon EOS 7D 22.3 x 14.9mm 1.61x


flickr (external link) 1DIIN 40D 1NRS 650 1.4xII EF12II Pel8 50f1.8I 28-80II 17-40L 24-70L 100-400L 177A 199A OC-E3 RS-80N3

  
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mikeassk
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Mar 07, 2010 19:55 |  #2

Literally splitting hairs with that math. .5 MM is very small.


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toxic
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Mar 07, 2010 20:03 |  #3

The 5D sensor is 23.9x35.8mm. I actually wondered why no one got up in arms about not getting their money's worth...




  
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hpulley
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Mar 07, 2010 20:09 |  #4

toxic wrote in post #9748793 (external link)
The 5D sensor is 23.9x35.8mm. I actually wondered why no one got up in arms about not getting their money's worth...

Didn't want it to compete with the 1Ds Mark III's 36x24mm Real Full Frame(TM). But seriously, the Mark II is the same size. I was just pointing out a tiny, though real 'shrinkage' in the "1.3x" sensor size over time.


flickr (external link) 1DIIN 40D 1NRS 650 1.4xII EF12II Pel8 50f1.8I 28-80II 17-40L 24-70L 100-400L 177A 199A OC-E3 RS-80N3

  
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cristphoto
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Mar 08, 2010 19:07 |  #5

hpulley wrote in post #9748716 (external link)
Anyone else noticed that 1.3x is shrinking over time? I did a search but saw nothing. Sorry for the lack of formating/table:

1D 28.7 × 19.1 mm 1.25x
1D Mk II 28.7 × 19.1 mm 1.25x
1D Mk III 28.1 × 18.7 mm 1.28x
1D Mk IV 27.9 × 18.6 mm 1.29x

It looks like the Mark IV is finally close to 1.3x. I know the differences aren't huge but it is an interesting trend.

1.6x was going down but recently went back up a tad. It wasn't quite the drop in size that the 1D II to III had though. These are all pretty close to 1.6x.


Canon EOS 10D 22.7 x 15.1mm 1.59x
Canon EOS 20D 22.5 x 15.0mm 1.6x
Canon EOS 30D 22.5 x 15.0mm 1.6x
Canon EOS 40D 22.2 x 14.8mm 1.62x
Canon EOS 50D 22.3 x 14.9mm 1.61x
Canon EOS 7D 22.3 x 14.9mm 1.61x

That may be true but as I understand it the later sensors have "larger more efficient" pixels. Canon has found a way to eliminate the wasted space between pixels on the sensor so image quality goes up.


!DX MK II, 5D MKIV x2, 24L II, 35L II, 50L, 85LIS, 100LIS Macro, 135L, 300LIS, 16-35LIS, 24-70L, 24-105LIS II, 70-200LIS, 100-400LIS

  
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hpulley
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Mar 08, 2010 19:55 |  #6

Gapless microlenses and such help get more light into smaller pixels along with other things improving the noise in smaller pixels but the overall sensor size of the 1.3x sensors getting smaller was my main point.


flickr (external link) 1DIIN 40D 1NRS 650 1.4xII EF12II Pel8 50f1.8I 28-80II 17-40L 24-70L 100-400L 177A 199A OC-E3 RS-80N3

  
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bsaber
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Mar 08, 2010 20:22 |  #7

What?! My 5D isn't REAL full frame?! Interesting...




  
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hpulley
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Mar 08, 2010 20:34 |  #8

mikeassk wrote in post #9748751 (external link)
Literally splitting hairs with that math. .5 MM is very small.

30 mm^2 less area on the Mark IV compared to the Mark II(and Mark I). That's the size of a 1/2" sensor ;-)a


flickr (external link) 1DIIN 40D 1NRS 650 1.4xII EF12II Pel8 50f1.8I 28-80II 17-40L 24-70L 100-400L 177A 199A OC-E3 RS-80N3

  
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1.3x shrinking
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