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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 17 Jul 2012 (Tuesday) 09:55
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5D3 Image file size and sharpness.

 
KarlGB77
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Jul 17, 2012 09:55 |  #1

A short while back, someone had posted this link to Ken Rockwell 5D3 user guide.
As one who is always open to learning all I can with regards to best using my new 5D3, I saw this.

http://kenrockwell.com …iii/users-guide/index.htm (external link)

Please feel free to comment on this as I find it interesting and useful.

---------------

Image Size

No one needs 21MP. All it does is slow everything and clog your hard drive.

Try shooting your 5D Mark III at its M (11MP) or S (5MP) settings. If you look at your images at 100%, you'll see that the lower resolution shots are sharper pixel-by-pixel!

When I'm photographing family and friends, I shoot at SMALL JPG. Even SMALL is good enough for great 20x30" prints.

The smaller-sized images out of the 5D Mark III are spectacular. They are much, much sharper and cleaner than images from cameras on which that is their native resolution. When you start with over 20MP, it looks pretty good if you use all those to make 11MP or 5MP.

Why? Because they use less, or no, Bayer interpolation. No digital camera really resolves its rated resolution; they cheat and interpolate up, so at 100% at its rated resolution, no digital camera image is as sharp as a true scan from film.

At the 5MP setting, you have 100% R, G and B pixels, exactly as if you were using a Sigma Foveon sensor. If Sigma was selling this, they'd sell the 5MP (S) setting as if it were 15MP (also a lie).

What this means is that the lower resolution settings actually pack away lot more detail than you think. The S (5MP) setting of the 5D Mark III is a lot sharper than any 5MP camera.

M looks almost as good as L for the same reason.

If you're testing lenses, sure, shoot at L, but for everything else, try the settings for yourself, You'll probably get what you need at the smaller settings. For instance, the 11MP setting of the 5D Mark III has way more detail than any of the 12MP (native) Nikon cameras.

The resolution advantage of the 5D Mark III is obvious, even at lower settings. Try them.


Canon 5D Mark III, 5D Mark II, T2i (2), 24-105 f4LIS, 17-40 f4L, 70-200f4L IS, 70-200 2.8L IS II, 100 2.8, 85 1.8, 50 1.4, 50 1.8, 15-85 f4-5.6 IS, 60 2.8, 18-55 IS, 55-250 IS, 430 EX II, 580 EX II, Manfrotto 055XPROB Tripod w/ 498RC2, Calumet 8121 Tripod, Manfrotto 679B Monopod w/ 234 RC2 head

  
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gonzogolf
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Jul 17, 2012 10:11 |  #2

Ken isnt well regarded around here because, well he sometimes says stupid stuff.




  
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KarlGB77
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Jul 17, 2012 10:13 |  #3

LOLOL

OK

Does this qualify?


Canon 5D Mark III, 5D Mark II, T2i (2), 24-105 f4LIS, 17-40 f4L, 70-200f4L IS, 70-200 2.8L IS II, 100 2.8, 85 1.8, 50 1.4, 50 1.8, 15-85 f4-5.6 IS, 60 2.8, 18-55 IS, 55-250 IS, 430 EX II, 580 EX II, Manfrotto 055XPROB Tripod w/ 498RC2, Calumet 8121 Tripod, Manfrotto 679B Monopod w/ 234 RC2 head

  
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LV ­ Moose
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Jul 17, 2012 10:14 as a reply to  @ KarlGB77's post |  #4

I'd be interested to see this tested. Note to self: Buy 5DIII for test. :D


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Phrasikleia
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Jul 17, 2012 10:15 |  #5

KarlGB77 wrote in post #14729172 (external link)
LOLOL

OK

Does this qualify?

Yes.


Photography by Erin Babnik (external link) | Newsletter (external link) | Photo Cascadia Team Member (external link) | Facebook (external link)

  
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David ­ Arbogast
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Jul 17, 2012 10:38 |  #6

"No one needs 21MP. All it does is slow everything and clog your hard drive." - Ken Rockwell

So, Ken says no one needs 21MP. No one. Not one single person in the entire world needs a high resolution image. Right.:rolleyes:

If I had even the smallest shred of respect for Ken's evaluations before, I have none now. His blanket statement is not only false in terms of what people need, but factually false as he is referencing a 5D II statistic (21MP) in a 5D III article (which delivers a 22MP image).

Ken might have more success conjuring donations to his web site if he didn't regularly make blunderously pathetic statements like that...he could then use the increased funds to grow an even bigger family and buy modern computer equipment and greater hard drive capacities, which would solve his problem of little 21MP files slowing everything down and clogging his hard drives.


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rrblint
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Jul 17, 2012 10:45 |  #7

KarlGB77 wrote in post #14729067 (external link)
Image Size

No one needs 21MP. All it does is slow everything and clog your hard drive.

Try shooting your 5D Mark III at its M (11MP) or S (5MP) settings. If you look at your images at 100%, you'll see that the lower resolution shots are sharper pixel-by-pixel!

When I'm photographing family and friends, I shoot at SMALL JPG. Even SMALL is good enough for great 20x30" prints.

The smaller-sized images out of the 5D Mark III are spectacular. They are much, much sharper and cleaner than images from cameras on which that is their native resolution. When you start with over 20MP, it looks pretty good if you use all those to make 11MP or 5MP.

Why? Because they use less, or no, Bayer interpolation. No digital camera really resolves its rated resolution; they cheat and interpolate up, so at 100% at its rated resolution, no digital camera image is as sharp as a true scan from film.


If you're testing lenses, sure, shoot at L, but for everything else, try the settings for yourself, You'll probably get what you need at the smaller settings. For instance, the 11MP setting of the 5D Mark III has way more detail than any of the 12MP (native) Nikon cameras.

If it is so much sharper at low-rez settings, why would I use high-res for lens testing?:rolleyes:


Mark

  
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bent ­ toe
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Jul 17, 2012 10:50 |  #8

Well, i'm a beginner at photography but i've read numeros articles about the megapixel race and that everything above 15mp to this date is not needed.
I have no idea really, but it still seems valid since a 15mp photo compared to a 20mp photo have small or no significant differances. Atleast to my untrained eye..

AF, ISO and FPS together with a good komposistion is way more important than mp.


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NinetyEight
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Jul 17, 2012 10:59 |  #9

A lot of people managed with 6, 8 or 10Mp cameras a few years ago . . .

Mind you KR does come up with some crazy comments sometimes - probably for all the publicity he gets from posts on forums like this ;-)a


Kev

  
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KarlGB77
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Jul 17, 2012 11:05 |  #10

So this comment is totally off base?

--------------

The smaller-sized images out of the 5D Mark III are spectacular. They are much, much sharper and cleaner than images from cameras on which that is their native resolution. When you start with over 20MP, it looks pretty good if you use all those to make 11MP or 5MP.

Why? Because they use less, or no, Bayer interpolation. No digital camera really resolves its rated resolution; they cheat and interpolate up, so at 100% at its rated resolution, no digital camera image is as sharp as a true scan from film.


Canon 5D Mark III, 5D Mark II, T2i (2), 24-105 f4LIS, 17-40 f4L, 70-200f4L IS, 70-200 2.8L IS II, 100 2.8, 85 1.8, 50 1.4, 50 1.8, 15-85 f4-5.6 IS, 60 2.8, 18-55 IS, 55-250 IS, 430 EX II, 580 EX II, Manfrotto 055XPROB Tripod w/ 498RC2, Calumet 8121 Tripod, Manfrotto 679B Monopod w/ 234 RC2 head

  
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Rabid
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Jul 17, 2012 11:11 |  #11

Ken must limit himself to 2"x3" prints.


If you want my expert opinion ask me about synthesizers. If you want my professional opinion ask me about computers. If you want an amateurish but enthusiastic opinion ask me about cameras.

  
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pyrojim
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Jul 17, 2012 11:12 |  #12

bent toe wrote in post #14729390 (external link)
Well, i'm a beginner at photography but i've read numeros articles about the megapixel race and that everything above 15mp to this date is not needed.
I have no idea really, but it still seems valid since a 15mp photo compared to a 20mp photo have small or no significant differances. Atleast to my untrained eye..

AF, ISO and FPS together with a good komposistion is way more important than mp.

Ever see a fashion shoot?

Or a studio shoot?

Ever read through a fashion magizne, or a fine art book? Canon and Nikon are the low end equipment used....


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EL_PIC
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Jul 17, 2012 11:14 |  #13
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KarlGB77 wrote in post #14729494 (external link)
So this comment is totally off base?

--------------

The smaller-sized images out of the 5D Mark III are spectacular. They are much, much sharper and cleaner than images from cameras on which that is their native resolution. When you start with over 20MP, it looks pretty good if you use all those to make 11MP or 5MP.

Why? Because they use less, or no, Bayer interpolation. No digital camera really resolves its rated resolution; they cheat and interpolate up, so at 100% at its rated resolution, no digital camera image is as sharp as a true scan from film.

Not total off base ... just off the Rockwell Planet ...
http://www.kenrockwell​.com/nikon/d800/vs-d800e.htm (external link)


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bent ­ toe
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Jul 17, 2012 11:20 |  #14

pyrojim wrote in post #14729535 (external link)
Ever see a fashion shoot?

Or a studio shoot?

Ever read through a fashion magizne, or a fine art book? Canon and Nikon are the low end equipment used....

I was talking out of a consumer viewpoint.. or are we talking professional $200.000 equipment? Because then i know it's important for..example a 25 feet large billboard or something.


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Bsmooth
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Jul 17, 2012 11:28 as a reply to  @ bent toe's post |  #15

It makes perfect sense, and If you were only going to print smaller images 10 or even 5Mp would be fine, and probaly killer from this camera.
But then at the same time, why pay all that money and only use 50 or even 75% of its capabilities
Now If you can make a 10Mp camera that has all the features of the 5D3, and sell it for around $1200.00 or so I might even buy one. Why because I don't need 22Mp.


Bruce

  
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5D3 Image file size and sharpness.
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