Canon Sensors with 14 Stops of Dynamic Range, Just Like Sony and Nikon? Well, Yes But…

by Hugh Brownstone2 Comments

Yeah, caught my attention, too.

But this IS the take-away of Wojciech Toman upon testing Magic Lantern’s (yes, of course – why didn’t I think they were the answer immediately?) Dual ISO functionality.

So: 14 stops of dyamic range from what are really 11 – 12 EV sensors, check.

Accomplishing this by halving the resolution in shadows and highlights, sampling half the sensor at a lower ISO and the other half at a higher ISO: that, too.

It’s a very clever tradeoff that eliminates the need – and limitations – of two exposure HDR, but whether or not it’s for you depends on what you value most in an image and workflow – and whether your subject is moving at the time you release the shutter.

Irrespective of your personal preferences, Magic Lantern does it again.

Magic Lantern Dual ISO – first impressions

Via HDR Photographer by Wojciech Toman:

Today I would like to show you one of my first photos taken with Dual ISO – it's from the same sunset as this one.

Please note that I intend to do more serious testing in the next few days and I will definitely share my findings here on the blog.

Ok, so here is the final processed shot:

Clouds over Warsaw

Above photo probably isn't the most impressive photo I took (although I really like colours in the clouds). What is impressive, however, is how the RAW photo straight from the camera looked:

Magic Lantern Dual ISO - first impressions image 2

Wow! The shadows are almost completely black in the RAW file but they still contain a lot of information! If I didn't use Dual ISO and would brighten them up, I would end up with a very noisy and almost unusable image. But thanks to Dual ISO image is pretty clean despite heavily brightening the shadows. And I used just a little of noise reduction here. Almost none. Amazing!

See full article and technical details at HDR Photographer “Magic Lantern Dual ISO – first impressions”

Note: it is our policy to give credit as well as deserved traffic to our news sources – so we don't repost the entire article – sorry, I know you want the juicy bits, but I feel it is only fair that their site get the traffic and besides, you just might make a new friend and find an advertiser that has something you've never seen before

(cover photo credit: snap from HDR Photographer)

Hugh Brownstone

Hugh Brownstone

Hugh is the founder of Three Blind Men and An Elephant Productions. He and the team write, direct, shoot, score, and edit web-centric films; conduct photo shoots; and write copy, white papers and blog posts. Hugh also writes screenplays (he recently optioned a TV pilot) and just published his first eBook (Apple's iPhone: The Next Video Revolution). If it's about telling stories, it's in their wheelhouse.

And always with the ambition of authenticity, humanity and wit.
Hugh Brownstone


  1. Thanks for sharing! Dual ISO has been around with ML for a while now, but it is definitely nice to have a reminder that it is there!

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