Video High ISO Comparison 5D3 vs 5D2, and more about 5D3’s high ISO settings

There is an interesting video on youtube (user Saika) [via P5D]. It compares two movies both shot with ISO 12800, one with the 5D2 and the other with the 5D3. You can view the videos side by side for an easy comparison.


There is visibly less noise in the movie shot with the 5D3. Click here to see a still taken from the video:

What do you think? Is the performance of the EOS 5D Mark III better? There is less noise, no discussion, but to me it looks as if the 5D2 maintains more details. It seems that the noise reduction algorithm on the 5D3 (at least at ISO 12800) does its job (heavily) at the expense of details. Click here to read the original post on P5D.

A more technical analysis of the 5D3 noise reduction algorithm can be read on They downloaded dpreviews’ sample pics and did a in-depth analysis. The question they pose is

Did Canon improve the sensor ISO noise performance or did Canon improve their noise reduction algorithm in image processor?

Well, good question! Lets go on:

Examining the images at 100% reveals that the fine details indeed disappear when ISO is increased. It is safe to say the camera applied significant amount of NR to reduce the appearance of the noise but the question is how much and what is the true performance of the sensor. Without RAW files, we cannot know. But there is a way we can get some idea: the file size vs. ISO.

And here comes the point. I can’t show the graphs here, but you can see them on the original post. They conclude that

You can clearly see a step-down in file size at ISO 800. At ISO 12800, the file size increase from ISO 6400 is small compared to the file size increase from ISO 3200 to ISO 6400. It appears the image processor in Canon EOS 5D Mark III applies different levels of noise reduction at different ISO levels.

And finally that

The image engine inside Canon EOS 5D Mark III does a good job. There are definitely loss of the details when viewed at 100% but the loss mostly occurs at fine detailed area which may not be an issue depending on the output size and media.

Crops of the original images are available (click on the ISO value) at ISO 100, 1600 and 6400. Have a look and judge by yourself.

You may also want to have a look to my constantly updated 5D3 info page with lots of sample pics and movies, technical info, hands-on reviews and previews, world-wide pre-order options, and more (click here).


5D3 accessories and 600EX Speedlite accessories available for pre-order at B&H

The following items are now available for pre-order at B&H

EOS 5D Mark III accessories:

Speedlite 600EX accessories

More world-wide pre-order options, and sample pics, previews, hands-on videos and more are listed clicking here.

Another #EOS5DMarkIII hands-on review

By the guys at Rather complete and worth to be read imho. They conclude

While the Canon EOS 5D Mark III may not have quite the wow factor that some were hoping for, the headline figures such as the pixel count aren’t as high as some may have wished for,it’s clear that a lot of work has gone into it. If Canon has managed to control noise levels at the mid to high sensitvity settings as much as it claims (it is supposed to have 2EV advantage over the 5D Mark II), it could be a very versatile camera and a real competitor to the Nikon D800.

Read the review clicking here.

Don’t miss my constantly updated 5D3 info page with lots of sample pics and movies, technical info, hands-on reviews and previews, world-wide pre-order options, and more (click here).

[via TR]