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Author Topic: IQ comparison; or how meaningful is DXO  (Read 22777 times)

aj1575

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IQ comparison; or how meaningful is DXO
« on: September 02, 2013, 04:19:58 PM »
Hello, I made a table with different samples from different cameras at different settings. I took the pictures from dpReview, and arranged them in 6 rows with 4 pictures each. The picture in each row are taken with the same setting (ISO, Raw or JPG). The pictures are mainly from Canon or Nikon cameras, but others are also included.

Feel free to rank the pictures in each row, or to just point a interesting things. I will post the picture with the settings and the cameras later.

You should download the picture to see it at 100%

The goal is not to spot the 70D. The idea is to rank the picture according to your impression, and then see later from what cameras they were.
« Last Edit: September 03, 2013, 01:30:10 AM by aj1575 »

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IQ comparison; or how meaningful is DXO
« on: September 02, 2013, 04:19:58 PM »

ajfotofilmagem

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Re: IQ comparison; or how meaningful is DXO
« Reply #1 on: September 02, 2013, 04:47:52 PM »
Ok, I'll kick: :)
3A is the Canon 7D
3B is the Nikon D7100
3C is the Sony A77
3D is the Canon 70D
Did I kicked too far? ???

ajfotofilmagem

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Re: IQ comparison; or how meaningful is DXO
« Reply #2 on: September 02, 2013, 06:38:51 PM »
Someone else will guess?

JohnUSA

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Re: IQ comparison; or how meaningful is DXO
« Reply #3 on: September 02, 2013, 07:56:33 PM »
Here's my picks:

1. D
2. D
3. D
4. A
5. A
6. A

aj1575

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Re: IQ comparison; or how meaningful is DXO
« Reply #4 on: September 03, 2013, 01:32:24 AM »
Ok, I'll kick: :)
3A is the Canon 7D
3B is the Nikon D7100
3C is the Sony A77
3D is the Canon 70D
Did I kicked too far? ???

Mostly Wrong. Try to sort the rows from best to worst, I will post the pic the names on it soon.

aj1575

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Re: IQ comparison; or how meaningful is DXO
« Reply #5 on: September 03, 2013, 02:03:12 AM »
I will do a ranking.

1. DCBA
2. DACB
3. DBAC
4. BDCA
5. DCAB
6. DABC

Kristofgss

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Re: IQ comparison; or how meaningful is DXO
« Reply #6 on: September 03, 2013, 03:31:40 AM »
Do you mean sort per row or sort once to pick the most pleasing one of the four cameras?

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Re: IQ comparison; or how meaningful is DXO
« Reply #6 on: September 03, 2013, 03:31:40 AM »

luigig75

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Re: IQ comparison; or how meaningful is DXO
« Reply #7 on: September 03, 2013, 03:44:00 AM »
1) DCBA
2) DCAB
3) DBAC
4) DBCA
5) ABCD
6) DABC

aj1575

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Re: IQ comparison; or how meaningful is DXO
« Reply #8 on: September 03, 2013, 04:12:15 AM »
Do you mean sort per row or sort once to pick the most pleasing one of the four cameras?

You can also only pick the best and the worst. What I like to do is a blind test; just look at the pictures, without knowing what camera it is, and what the settings were.

It is very interesting. I made the table, but I can remember the position of only a few cameras, so there is nothing else to do than just look carefully at the pitures, and rate them by what I see.

I think I will do a table with only the DXO mark attached to it, this would also be interesting.

Cannon Man

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Re: IQ comparison; or how meaningful is DXO
« Reply #9 on: September 03, 2013, 04:21:43 AM »
I spot that they are all bad.. None of them a 1DX

Kristofgss

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Re: IQ comparison; or how meaningful is DXO
« Reply #10 on: September 03, 2013, 04:23:31 AM »
1. acbd
2. cabd
3. dbac
4. bcda
5. dcab
6. adbc

Woody

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Re: IQ comparison; or how meaningful is DXO
« Reply #11 on: September 03, 2013, 04:51:31 AM »
My ranking:

1 DCBA
2 DACB
3 DBAC
4 BDCA
5 BACD
6 DABC

aj1575

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Re: IQ comparison; or how meaningful is DXO
« Reply #12 on: September 03, 2013, 09:44:08 AM »
I like to see some more ratings, so that it makes sense to put the results into some nice graphs.

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Re: IQ comparison; or how meaningful is DXO
« Reply #12 on: September 03, 2013, 09:44:08 AM »

rpt

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Re: IQ comparison; or how meaningful is DXO
« Reply #13 on: September 03, 2013, 09:56:12 AM »
1. DCAB
2. ADCB
3. DABC
4. BDAC
5. ACBD
6. ADBC

There you go...

ajfotofilmagem

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Re: IQ comparison; or how meaningful is DXO
« Reply #14 on: September 03, 2013, 11:58:16 AM »
I'll try again. From best to worst ...
1-  D- C- A- B-
2-  D- A- B- C-
3-  D- B- A- C-
4-  B- D- A- C-
5-  C- A- B- D-
6-  D- A- B- C-
« Last Edit: September 03, 2013, 12:00:51 PM by ajfotofilmagem »

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Re: IQ comparison; or how meaningful is DXO
« Reply #14 on: September 03, 2013, 11:58:16 AM »