Sigma 20/1.4

[chrysoberyl]

20/1.4 is my preference for astrophotography. Since it appears Sigma will not be allowed to produce a 20/1.4 for the RF mount, I am considering purchasing a Sigma BF and Sigma 20/1.4, specifically for astrophotography.

Does anyone have experience with Sigma cameras used for astrophotography?

 

[ThomasTH]

Does anyone have experience with Sigma cameras used for astrophotography?

No, but you could get a Sony E or an L mount camera. The Sigma BF is more of a lifestyle camera product, At least it seems to me.

Canon has a new RF 20mm 1.4 too. Perhaps that would be of interest?

 

[Loswr]

I found the Canon RF 20/1.4L to be excellent for astrophotography. It’s more expensive than the Sigma, but I doubt it’s more expensive than Sigma the lens plus a camera to use it with.

RF 20mm f/1.4L VCM

The RF 20mm f/1.4L VCM is Canon's widest current L-series prime for the RF mount, and Canon's first new 20mm lens in 33 years. For many people interested in this lens, a choice will need to be made between the 20/1.4 and its slightly older fraternal twin, the RF 24mm f/1.4L VCM. The two lenses...

www.canonrumors.com

 

[chrysoberyl]

I found the Canon RF 20/1.4L to be excellent for astrophotography. It’s more expensive than the Sigma, but I doubt it’s more expensive than Sigma the lens plus a camera to use it with.

Thank you. I was concerned that in-camera corrections would blur the edges and corners, and there would be noticeable coma.

 

[Loswr]

Thank you. I was concerned that in-camera corrections would blur the edges and corners, and there would be noticeable coma.

So was I, which is why I checked and was pleasantly surprised (in case you didn't click the link in the above post, I have corner crops of stars in there).

 

[chrysoberyl]

So was I, which is why I checked and was pleasantly surprised (in case you didn't click the link in the above post, I have corner crops of stars in there).

I did just now. That blows away the Sigma 20mm F1.4 DG HSM! Again, thank you.