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What is causing this noise?

Started Apr 30, 2019 | Questions thread
jvc1 Senior Member • Posts: 2,202
Re: What is causing this noise?

Jeffry7 wrote:

Hi folks,

Not sure if this is the right place for my question, but the camera is a 550d, so here goes.

I took a daytime shot of the moon over the weekend with a manual lens and it turned out really noisy.

800mm, ISO 100, 1/60, 100% crop

Someone I showed this to suggested it was underexposure, but the histogram looks OK.

Full image via Rawtherapee

Any ideas?

The crop looks way over exposed. What lens? Looks like a cheap mirror lens. What's the full image look like? The area of deep space should be all black, the moon should be very bright. SS looks to slow, something's wrong with the whole thing. Can you attach the full image with exif?

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