Looking for Opinions- Sigma EF Glass?

[JoeTheSnowPlowGuy]

I have come to the conclusion that I need to add a 24-70 and 70-200 f/2.8 to my lens options for events and other situations that seem to be coming up where primes aren’t the answer. After some experimentation I definitely would benefit from f/2.8 over f/4. Buying Canon RF glass would set me back nearly $5k. Would I lose any capabilities converting Sigma EF Art and Sport lenses to RF? I would wait for Sigma or Tamron to release some native RF glass, but who knows when that will happen. Would picking up these Sigma lenses be a “mistake”? (Converted on R6 Mk2)

 

[Bryan Conner]

Has everyone had the same experiences with the Tamron SP G2 lenses? Found a 70-200 for a good price.

While I don't have a Tamron SP G2 lens, I do currently have a Tamron SP 24-70 f2.8 VC lens. This was the version prior to the G2 version. Tamron updated the firmware on my lens so it would work with RF bodies. And it is a wonderful lens on my EOS R. I just sold my 45mm f1.8 Tamron which also worked perfectly after updating the firmware using the Tamron Tap-In console. The 45mm was of the same generation as the G2 lenses, but since it was a new focal length, it wasn't designated as a G2.

I had a Tamron 70-200 f2.8 which was also the "G1" version and it also worked perfectly on my EOS R after having the firmware updated by Tamron. It also worked great, but wasn't as sharp across all apertures as my current Canon 70-200 f2.8 II .

I would not think twice about buying a Tamron G2 70-200 because I know it has some slight improvements in many areas over my old G1 70-200 lens. But, it would have to be a really good deal in comparison to a Canon 70-200 f2.8 II or III lens.