zug55 wrote:
Correction: if Tamron makes a 35-150mm f/2.8-f/4, it certainly is not for the Sony FE mount. In fact, I have not found such a lens. Second, there is a Sigma 24-105mm art lens for Nikon and Canon, but not for the Sony FE mount. Sigma only makes a 24-70mm lens for Sony FE.
When I first moved from Nikon and Canon (both brands) to Sony back in January 2017, I owned and used a Sigma Art 24-105mm f4 lens in Canon EF mount on my Sony A7RII with a Sigma MC-11 lens adaptor and it worked well. But only when I transitioned from all my Canon, Nikon and Sigma DSLR-designed lenses and moved to native E-mount lenses did I get the best performance from my lenses on my Sony bodies.
And the mirrorless-designed native E-mount lenses are much more compact and lighter than the DSLR-designed Canon EF lenses and Sigma Art EF-mount lenses I had used before with an MC-11 adaptor.
Here I will share some shots made with my Sony A7RII, and my Sigma Art 24-105mm f4 lens in EF mount with the MC-11 adaptor on a trip to visit some longtime friends in Scotland.
1) A just married wedding couple get serenaded by their bag-piper in Edinburgh, Scotland. Sony A7RII, Sigma Art 24-105mm f4 lens with MC-11 adaptor.
2) Loch Shiel in Glennfinan , Scotland, the location of numerous scenes shot for the Harry Potter series of movies. Sony A7RII, Sigma Art 24-105mm f4 in EF-mount, used with the MC-11 adaptor.
3) A double rainbow at low tide in Portree, the capital town on the Isle of Skye in Scotland. Sony A7RII, Sigma Art 24-105mm f4 EF-mount lens with MC-11 adaptor.
Click on download to see the best image quality.
I loved the image quality of that DSLR-designed Sigma Art 24-105mm f4 lens in EF-mount, but it was fairly big and heavy and made bigger with that added MC-11 adaptor. The mirrorless-designed native E-mount Sony 24-105mm f4 G OSS is much smaller and lighter, faster focusing and more.
NOTE: Sigma makes great native E-mount lenses that are optically as good and perform as well as the best Sony lenses. I own a few of those great Sigma Art mirrorless-designed native E-mount lenses and love them just as much as my best native E-mount Sony lenses.
Cheers and best to you.