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70D ISO Test - straight from the camera JPG's.

Paul_Iddon 14 56 England
22 Aug 2013 9:59AM
OK, testing the ISO levels on the new 70D. The lens is my EF 100mm f/2.8 macro.

These were taken tripod mounted, all at f/11 in AV priority. The camera was set to it's maximum JPG setting and the results saved and displayed as full size images.

Opened into Photoshop, no adjustments whatsoever. The only editing is where I added text to show the ISO numbers.










22 Aug 2013 10:09AM
1:1 crops please?
JackAllTog Plus
12 6.3k 58 United Kingdom
22 Aug 2013 12:59PM
Wow, that looks pretty dam good right up to the top. The bright pink in the middle seems to lose almost nothing.
mikehit 11 8.0k 13 United Kingdom
22 Aug 2013 1:37PM
If these are out of camera jpegs then some noise reduction will have been applied, but even so I would consider 12,800 to be very usable.
Paul_Iddon 14 56 England
22 Aug 2013 1:48PM
@ Mike, I applied no noise reduction myself, and the NR setting in the camera is also (and always is) set to OFF, so any NR that may have been applied is purely down to the camera taking a JPG image and saving it using it's built in JPG compression.





mikehit 11 8.0k 13 United Kingdom
22 Aug 2013 1:56PM
Thank you for explaining it.
There are the first significant signs of smoothing of detail at 6,400 but the fact you can get such quality looks very good. Mind you these crops are way larger than most people would ever look at images in real life (something many pixel peepers forget).
22 Aug 2013 4:15PM
That's pretty good. My 60D starts to show noticeable noise about at 800 iso so it does seem to be a step up in terms of image quality.
22 Aug 2013 11:40PM
Thanks for the crops. You got me interested, so I downloaded the manual and had a check. Looks like Canon did a great job developing its in-camera noise reduction technology:
High ISO Speed Noise Reduction
This function reduces the noise generated in the image. Although noise
reduction is applied at all ISO speeds, it is particularly effective at high
ISO speeds. At low ISO speeds, the noise in the darker parts of the
image (shadow areas) is further reduced.

However I did not find an option to switch High ISO NR completely off. What I see there is a three-bar regulator.
Does it have OFF position? Manual is not clear on that. But anyway it is really impressive. Thanks!
patters 16 1.8k 1 United Kingdom
22 Aug 2013 11:57PM
the red pencil looks the sharpest!
Paul_Iddon 14 56 England
23 Aug 2013 7:15AM
High ISO NR can be turned of, on that menu (page 4 of the cameras inbuilt options).

colin beeley Plus
18 1.2k 10 England
23 Aug 2013 8:58PM
what are the raw files like ?
Paul_Iddon 14 56 England
23 Aug 2013 10:52PM
Easy to edit. Smile
colin beeley Plus
18 1.2k 10 England
24 Aug 2013 8:32AM
if you use DPP to edit the raw file i bet you can get a clean image like the iso 100.
Paul_Iddon 14 56 England
25 Aug 2013 12:35AM

Camera Maker: Canon
Camera Model: Canon EOS 70D
Lens: EF-S18-135mm f/3.5-5.6 IS STM
Image Date: 2013-08-24 22:24:05 +0000
Focal Length: 85mm
Aperture: f/13.0
Exposure Time: 0.600 s
ISO equiv: 6400
Exposure Bias: +1.00 EV
Metering Mode: Matrix
Exposure: aperture priority (semi-auto)
White Balance: Auto
Flash Fired: No (enforced)
Orientation: Normal
Color Space: sRGB




Tigger1 8 7 England
26 Aug 2013 5:06PM
Hi Paul
Good test and impressive results!

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