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native ISO sensitivity (which typically offers the highest image quality)

Started Mar 16, 2012 | Discussions thread
Astar Le Poulpe New Member • Posts: 1
Re: Image quality on landscape photos
1

bent christian wrote:

theatrus wrote:

All sensors have an idel ISO, which is the lowest standard (not expanded), setting. For Canon dslr cameras this is ISO100.

In Canons that operate with 1/3 stop ISO increments, ISO 160 has been shown to have the least amount of noise at the expense of slightly less dynamic range. Canon generates 1/3 stop increments by either "pushing" the gain up or "pulling" it down from full-stops. ISO 125 is a "pushed" 100. ISO 160 is a "pulled" 200, and has been shown to be the best low ISO setting to use. ISOs 125, 250, 500, 1000, etc. are the worst and probably should not be used at all.

I still use my Rebel T3i for video and it works the best, meaning, lowest noise ratio and highest DR at ISO 400. I don't quite like how the shadows get crushed sometimes with lower ISOs even using a CINE profile and MagicLantern. and i've found that i can Push it well into ISO 800 if needed and the footage will still be perfect for use with color correction and slight denoise. I've been trying to find an official source that states the Rebel T3i's Native ISO but so far i've only found the spec sheet and it tells none about that, or maybe i can't find where it is written. Anyhow, I've tried the ones in the nono list you said and they are garbage.

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