You asked

Is the canon eos 5d mark iii good in low light?

Yes, for its time it's a strong low-light body. The 5D Mark III has a full frame sensor, and a bigger sensor collects more light at the same framing and f-number, so files stay cleaner at high ISO. The site doesn't publish high-ISO test results, so judge it on that reasoning, not on a number. The body has no stabilisation, so pair it with a stabilised lens for slow shutter speeds.

The lens matters as much as the body. For dim scenes, go fast: the Canon EF 50mm f/1.2L USM and Canon EF 35mm f/1.4L II USM are good places to start. If you want a newer body for this, the Canon EOS R6 Mark II is described on the site as a superb all-rounder in low light. See why primes gather more light and what a bigger sensor buys you.

Written by Claude from this site's pages.

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