Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 24 Nov 2010 (Wednesday) 00:26
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Comparison of 7D and cropped 5D2

 
Daniel ­ Browning
Goldmember
1,199 posts
Likes: 4
Joined Nov 2008
Location: Vancouver, WA
     
Nov 24, 2010 00:26 |  #1

A friend of mine shot some quick raw files to compare the 5D2 and 7D in the case where the 5D2 is cropped to the same angle of view as the 7D (such as in a lot of wildlife photography). Here is the analysis of the test (with raw files):

7D compared with cropped 5D2 (external link)

Some notes about the comparison:

  • The JPEG compression is very light, but if you prefer completely uncompressed PNG files, just remove "-jpg" from the URL.
  • The 100-400 and 100mm macro lenses were used, but I only ended up analyzing the macro shots in the above URL.
  • The color temperature was very low, 2800K, and white balanced back to neutral, so the blue channel has quite a bit of noise even at ISO 100.
  • Same 100mm f/6.3 settings on both.
  • There was a bit of a brightness difference that required equalization in the raw converter. I didn't bother to preserve highlights while brightening with nonlinear EC or highlight compressing curve.
  • dcraw was used to demosaic the files to ensure both were given exactly equal conversions.
  • In the first two sets of comparisons, I upsampled both cameras to 36 MP so that the effect of the upsampling wouldn't unfairly penalize the 5D2. In the third set, both are downsampled to 8 MP
  • ImageMagick was used for resizing and sharpening (same parameters for both).


Based on the comparison, I think I prefer the 7D for this type of circumstance. I hope you find it informative.

Daniel

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
jwcdds
Cream of the Crop
Avatar
14,925 posts
Gallery: 1738 photos
Best ofs: 5
Likes: 5627
Joined Aug 2004
Location: Santa Monica, CA
     
Nov 24, 2010 00:35 |  #2

Wow. The difference is more significant than I thought it would be. Thanks for taking the time and sharing your findings.


Julian
Gear/Feedbacks | SmugMug (external link) | Flickr (external link) | Blog (external link) | Instagram (external link) | YouTube (external link)
My Reviews | "The Mighty One" (external link) | "EF 85mm f/1.4 L IS Review" (external link)
Founding member and President of the BOGUS Photo Club (Blatantly-Over-Geared & Under-Skilled)

  
  LOG IN TO REPLY
Erik_L
Goldmember
3,160 posts
Likes: 1
Joined Oct 2009
Location: Minnesota
     
Nov 24, 2010 00:37 |  #3

neat stuff, but I still prefer the images from my 5D vs my 7D - to the point that I actually traded the 7D away. Good info though.


Canon EOS 1D III
Manfrotto 190X Pro B w/324RC2 "Action Head" | Canon 580EX II
Sigma 20 f/1.8 | Canon 35 f/1.4 L | Sigma 50 f/1.4 | Sigma 85 f/1.4 | Canon 135 f/2 L
Flick (external link)r

  
  LOG IN TO REPLY
themadman
Cream of the Crop
Avatar
18,871 posts
Likes: 14
Joined Nov 2009
Location: Northern California
     
Nov 24, 2010 00:37 |  #4

Pretty much the expected result to me, a 18MP APS-C sensor is way more dense than a 21MP FF sensor so when looking at a cropped 5D2 to a 7D, the 7D is going to have way more resolution!


Will | WilliamLiuPhotography.​com (external link) | Gear List and Feedback | CPS Member | Have you Pre-Ordered Your 3Dx Yet? | HorusBennu Discussion | In honor of Uncle Steve, thanks for everything! 10-5-2011

  
  LOG IN TO REPLY
spacetime
Goldmember
Avatar
1,276 posts
Joined Oct 2009
     
Nov 24, 2010 00:48 |  #5

Glad I got rid of my 5dII.




  
  LOG IN TO REPLY
pasm365
Member
Avatar
164 posts
Joined Nov 2010
     
Nov 24, 2010 01:48 |  #6

Daniel Browning wrote in post #11337335 (external link)
......so that the effect of the upsampling wouldn't unfairly penalize the 5D2. In the third set, both are downsampled to 8 MP......

You are comparing about 8mp from 5D2 with 18mp from 7D. Do you think that's fair?
Also, none of the results are directly from the camera, all cooked with some magic routine. Sorry, but your results are very flawed.


40D 70-200 f/4LIS

  
  LOG IN TO REPLY
mikeassk
Goldmember
Avatar
2,329 posts
Likes: 3
Joined Aug 2006
Location: San Diego/ San Fran/ Berkeley
     
Nov 24, 2010 02:01 |  #7

pasm365 wrote in post #11337529 (external link)
You are comparing about 8mp from 5D2 with 18mp from 7D. Do you think that's fair?
Also, none of the results are directly from the camera, all cooked with some magic routine. Sorry, but your results are very flawed.

He has gone at length to even the playing field, I think you need to re-read and analyze the work.


Stuff

  
  LOG IN TO REPLY
tancanon58
Senior Member
Avatar
965 posts
Gallery: 2 photos
Likes: 1
Joined Oct 2009
Location: southern california
     
Nov 24, 2010 02:09 |  #8

I have owned and sold 100-400 and 100L. To me I do not think these two lenses have a good match with 5D2. Too bad I did not have them anymore to test with 7D.


Bodies: 5D MkIII/ Oly ED-M5/ G10
Lenses: Tamron SP 24-70 2.8 Di VC /and some Panny and Oly lenses.
Flash: Canon600EX RT.

  
  LOG IN TO REPLY
AlanU
Cream of the Crop
7,732 posts
Gallery: 141 photos
Likes: 1457
Joined Feb 2008
Location: Vancouver, BC
     
Nov 24, 2010 02:13 |  #9

When I first viewed the photos I was thinking that theres some MA required on the 5dmk2.

I'm not certain if the methods here have provided proper grounds for comparison.

I think a good test is to shoot in the city and take photos of office buildings from a distance. This may be more challenging for achieving more details in a photo.

It is nice to have a built in 1.6x factor in the body :) I do think a full frame has its benefits too.


5Dmkiv |5Dmkiii | 24LmkII | 85 mkII L | | 16-35L mkII | 24-70 f/2.8L mkii| 70-200 f/2.8 ISL mkII| 600EX-RT x2 | 580 EX II x2 | Einstein's
Fuji - gone
Sony 2 x A7iii w/ Sigma MC-11 adapter | GM16-35 f/2.8 | Sigma 24-70 ART | GM70-200 f/2.8 |Sigma Art 24 f/1.4 | Sigma ART 35 f/1.2 | FE85 f/1.8 | Sigma ART 105 f/1.4 | Godox V860iiS & V1S

  
  LOG IN TO REPLY
sth_
Senior Member
Avatar
811 posts
Joined Mar 2008
Location: Europe
     
Nov 24, 2010 02:18 |  #10

Nice comparison to show the advantage of a crop camera for things like birding.

Also nice to have all the editing steps listed.


My completely outdated Flickr (external link) :: Gear

  
  LOG IN TO REPLY
pasm365
Member
Avatar
164 posts
Joined Nov 2010
     
Nov 24, 2010 02:31 |  #11

mikeassk wrote in post #11337537 (external link)
He has gone at length to even the playing field, I think you need to re-read and analyze the work.

His work is almost pointless. Forget about camera model, same view, 8mp vs 18mp, blown up, which one looks better? Isn't that obvious?


40D 70-200 f/4LIS

  
  LOG IN TO REPLY
NatDeroxL7
Goldmember
Avatar
1,254 posts
Gallery: 9 photos
Best ofs: 1
Likes: 509
Joined Dec 2009
     
Nov 24, 2010 02:33 |  #12

I'm not sure that people who are looking for more reach, or consistently use super telephotos, would ever really find themselves having this debate in the first place. I could have told you that the 7D is better at getting more reach for a given focal length than the 5DII without any tests at all.


How about this test:

100mm on the 7D,
70-200 zoomed to 160mm on the 5DII.

I think the results would be a little bit different than with this test.

If you want more reach, APS-C is a clear choice, sports, wildlife, astronomy....

Now lets see a test comparing 35mm on a 7D, cloned onto a canvas sized to match the FOV you get from 35mm on a 5DII ;)


https://www.instagram.​com/nd14411 (external link)
https://natedphoto.myp​ortfolio.com/ (external link)

  
  LOG IN TO REPLY
themadman
Cream of the Crop
Avatar
18,871 posts
Likes: 14
Joined Nov 2009
Location: Northern California
     
Nov 24, 2010 02:35 |  #13

pasm365 wrote in post #11337569 (external link)
His work is almost pointless. Forget about camera model, same view, 8mp vs 18mp, blown up, which one looks better? Isn't that obvious?

He is simply showing under certain circumstances, there is a benefit to APS-C sensors over FF. At a given focal length and given distance from subject, the APS-C sensor has more resolution if we assume that is the framing we want over the FF framing.

Once they make a camera with a FF sensor with the same pixel density as the 7D, then the test should yield the same result for both. But by then, they will no doubt make a APS-C sensor that is even denser.

NatDeroxL7 wrote in post #11337572 (external link)
Now lets see a test comparing 35mm on a 7D, cloned onto a canvas sized to match the FOV you get from 35mm on a 5DII ;)

Wouldn't this clearly favor the 5d2 since you are now comparing 21MP to 18MP?

I think the point is frequently the lens you have is the lens you have and the distance you have is the distance you have, if you can't change these two factors (which you frequently can't in situations where the 7D excels like birding or sports) the 7D is the winner since you would have to crop the 5D2.

Regardless of what people think about the test, I think this is a good way to show FF is not the holy grail of photography. I think the reason APS-C gets hated on is due to a bunch of photographers (most likely previous film shooters) spouting their gospel online.


Will | WilliamLiuPhotography.​com (external link) | Gear List and Feedback | CPS Member | Have you Pre-Ordered Your 3Dx Yet? | HorusBennu Discussion | In honor of Uncle Steve, thanks for everything! 10-5-2011

  
  LOG IN TO REPLY
pasm365
Member
Avatar
164 posts
Joined Nov 2010
     
Nov 24, 2010 02:52 |  #14

themadman wrote in post #11337579 (external link)
I think the reason APS-C gets hated on is due to a bunch of photographers (most likely previous film shooters) spouting their gospel online.

FF and APS-C are just different formats, I doubt anyone would "hate" APS-C. APS-C has more pixels for the save FOV, it's preferable in certain situations. For a casual shooter, the difference of FF and APS-C are not as meaningful as to a professional, for whom every single bit of performance counts. Pictures from FF are slightly punchier.


40D 70-200 f/4LIS

  
  LOG IN TO REPLY
artyman
Sleepless in Hampshire
Avatar
14,411 posts
Gallery: 17 photos
Likes: 73
Joined Feb 2009
Location: Hampshire UK
     
Nov 24, 2010 02:58 |  #15

Will this interminable contest between the 7D and 5D2 never end, both are excellent cameras and I daresay a 16x12 print from each would be indistinguishable to 99.9% of viewers, isn't it time we dropped these silly arguments.


Art that takes you there. http://www.artyman.co.​uk (external link)
Ken
Canon 7D, 350D, 15-85, 18-55, 75-300, Cosina 100 Macro, Sigma 120-300

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

15,448 views & 0 likes for this thread
Comparison of 7D and cropped 5D2
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Irony
789 guests, 273 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.