90D noise at ISO 320 a bit too much

Started 3 months ago | Discussions thread
MisterBG Veteran Member • Posts: 7,187
ISO does not cause noise

clicker88 wrote:

Howdy everyone.

I just got my 90D a few days ago and gave it a test today. Do you think the noise is a bit too much at ISO 320? YES 320, not 3200 The lens is Canon 100-400 Mk ii.

My old 70D+ same lens can do much better than that.

The image(original; no PP) was a bit underexposed. But even my well exposed 90D images(below ISO 400) introduce some sort of noise too.

AI servo is not very accurate either. I disable iTR.

90D sample image noise ISO 320 F8 1/1600 176mm

The main cause of noise in a digital image is underexposure,

It is nothing to do with ISO.

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