Q: Wideangle for astrophoto and portrait - sigma choices 20 1.8,12-24

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Jacobl
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Q: Wideangle for astrophoto and portrait - sigma choices 20 1.8,12-24
4 months ago

Hi

I have the sigma 12-24 II 4.5-5.6, and I intend to take a trip where there will be lots of star photo chances.

I have an option to buy, relatively cheaply, the sigma 20 1.8, but I'm not sure it's good enogch to compete with either the 12-24 or the canon 28 2.8 which I also have.

Any experience with either lens for astrophotography?

the body is 6D, so low light capability is great - I can bump the ISO quite high...

TIA

jacob

Canon EOS 6D
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