Reading mode: Light Dark

7D Image Detail at 1600 (images)...what do you see?

Go to last post
V

Vance Zachary

Veteran Member
Messages
5,168
Reaction score
2
Location
San Antonio, TX, US
Folks, I am not a camera tester. I just love photography. Like you, I just want the equipment I use to give me the best image quality for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I own both cameras and did a quick and dirty test. It was not as carefully performed and analyzed as Phil's analysis but...what do you think? Do you think that there is a big difference between 7D and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
 
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
 
I like the second pic more. It has less color noise in the shadow part.

BTW, Vance, how noisy and fast is the 20D AF without USM? Doe is really make a lot of difference?

Oliver
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
 
Vance Zachary said:
One of the images below is shot with 20D and the other with 7D. I
Click to expand...
Actually when you think about it, it's amazing that you can take a shot at ISO 1600 and have so little noise in the shot. I doubt very much you could do that with any type of film.

But if I had to choose I would go for camera B. It has noticably less chroma noise, less jpg artifacts and the contrast tone is more pleasing to my eye.

So do tell ... which is which? :-)

Michael
 
I am doing this little test in between meeting clients here at the studio so the test is really quick. I had Anti-Shake off and used the jpgs for posting. I also had noise reduction turned off on the 7D. It's back to work for me. See you later.
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
 
They both have good detail.

Camera A has more contrast and shadows, which makes me think the lighting was somewhat different than for camera B, yet the shadows of both are identical.

The tiny chip at 1:00 o'clock above the ear is equally evident in both pictures. The curls look about the same

I'd say this test would indicate that the level of detail captured by both cameras is about the same (even though one appears larger than the other, probably due to 8 vs 6 Megapixels).

Of course this test doesn't count, cause in both of them the Queen looks like she needs a shave. (grin)

DP

--
Fiat lux.
 
Hi Vance,

Like the others I prefer the picture from cam B for the same reason.

But I think your comparaison is not very fair for cam A, the focal is shorter so there is less detail to see and the speed is higher so the picture is darker and the more noises can be seen.

My 2 cents.
Ludovic
Vance Zachary said:
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
 
Dennis Phillips said:
They both have good detail.
Click to expand...
Agreed...but on this monitor, it looks like the paper texture on the lower photo is pretty much gone as compared to the upper photo. Could the lighting have also done this, or just a difference in focus, or would it be internal processing?

--
Tricia
 
There is a huge difference between them, the 20D is a lot better. Its easy to spot the blotch blue channel of the D7D. (be funny if I have this the wrong way!)



Note, this doesnt NOT have to mean the sensor is noiser. The in camera jpgs algorithm is not optimised for high ISO. DiVu does worse if anything.

Output from dcraw or C1 gives much more grain like noise, which is easier to filter if you want to, wheich means you can clean it up and retain more detail.

Andrew
 
...

... The top one is the 7D's, and I like it more due to the higher contrast, which I think made it show slightly more noise at the coin's shadow. It also shows a bit more details in the text and paper.
The lower one ( 20D's ) looks washed out to me, maybe due to a bit overexposure.

... Lucas
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
--

KM Maxxum 7D, Tokina 17/f3.5, Tamron 24-135/f3.5-5.6, KM 100-300/f4.5-5.6 APO(D), KM 50/f1.7, Sigma 50/f2.8 macro, Oly TCON17 1.7x, KM A1
 
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
 
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
 
Well, if they are 100% crops then 20D is the one with greater resolution :)

They are very different: different contrast in the first place so it’s not fair to judge anything.

But, if I must choose one, which I prefer then I vote for the second one for better balanced contrast

Happy shooting

p.s.

two question Vance. Can you comment one more time the battery life of each camera? And one stupid question but I can’t forget that .. do you miss top LCD on 7D ? If someone offer you that WB thing or top lcd what would you choose? :)

--
7D dedicated website http://www.dyxum.com
 
Firstly because of the DOF difference one would think that the first comes from D7D and second from 20D.

Also second one have lesser contrast and sharpness, so looks a Canon flatness already (with default settings)

Which i prefer ? The first one because of the increased contrast which makes more appealling.

Exif showes that too.

------------------------------
Giannis Koutroulas
Greece
 
Phil's tests, if viewed in detail, indicate that the 7D smooths out the noise at the expense of detail rendition. On his review, the difference seems quite clear.

However - while it's almost impossible to tell definitively from a JPEG posted to the web - I'm surprised that the two are as close as they are. My guess would have been that image B was from the 20D - but I just can't be sure!

I agree that image A seems to have more contrast and more chroma noise than image B - and perhaps for that reason, it appears to have slightly more noise in the shadows and in the darker parts of the coin.

There is also the fact that, in order to make the two images appear to be the same size when posted, the image from the 7D would have to be posted at a slightly larger size than the one from the 20D.

Bottom line is - I can't tell for sure - and that's the important part of my answer.
I'd be pleased with either image, at ISO 1600.

Bill Hansen

Bill Hansen
 
The above posters are right. The focal length and the exposure varied slightly: the 7D was at 1/10th of a second at f8 and the 20D was at 1/8th of a second at f8. The focal length of the 7D is 75 while that of the 20D is 65. I tried not to move the tripod so the distance and focal plane should be the same.

I used the default camera settings for sharpness, contrast, color which may vary according to the camera. I shot these as if I were photographing one of my clients except that I used AWB. I did not correct for differences 1.6 vs 1.5 focal multgiplier and I didn't adjust for 8 MP vs 6 MP file size. I did apply auto levels to both. There was no change in the lighting which was incandescent available light.

The thing that I take away from this exercise is that:

comparisons of this nature are so complex that we are left considering apples and oranges rather than apples and apples without taking extreme measures to control all variables

both samples are something I could easily live with; neither is so bad that it would be enough as a sole factor to choose one camera over another IMO

both cameras are very useable at 1600 iso; maybe better than some film

--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
 
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
 
Vance, I have a feeling that camera B is the 7D right?

Cheers,

José
Vance Zachary said:
Folks, I am not a camera tester. I just love photography. Like you,
I just want the equipment I use to give me the best image quality
for the price that I am willing to pay.

One of the images below is shot with 20D and the other with 7D. I
own both cameras and did a quick and dirty test. It was not as
carefully performed and analyzed as Phil's analysis but...what do
you think? Do you think that there is a big difference between 7D
and 20D??? Judge for yourself!

What I did: shoot RAW+large jpg
tripod mounted cable release
lenses: Canon 20D Tamron 28-75/2.8 DI at f/8
Minolta 7D Minolta 28-75/2.8 D at f/8
manually focused and compared with autofocused images
ISO: 1600--what do you think?

Camera A:



Camera B:



--
Vance Zachary
http://www.pbase.com/photoworkszach
http://www.photoworksbyzachary.com
Click to expand...
--
http://www.pbase.com/jmb_56/maxxum_7d

A very exuberant Konica Minolta Maxxum 7D trailblazer. Who's zooming who: Sigma 12-24/4.5-5.6 EX, Maxxum 28-75/2.8 and Sigma 70-200/2.8 EX
 
You must log in or register to reply here.

Keyboard shortcuts

f
Forum
m
My threads
Mobile site
About
Editorial content
Cameras & Lenses
Community
All content, design, and layout are Copyright © 1998–2025 Digital Photography Review All Rights Reserved.
Reproduction in whole or part in any form or medium without specific written permission is prohibited.
When you use DPReview links to buy products, the site may earn a commission.
©GPS Media - Guides, Products, Services.
Back
Top