Buyers Guide For A Decent Telephoto Zoom Lens

[Meiereika]

Hey Guys!
I'm looking for a good telephoto lens with a zoom range of about 100 - 600mm (more or less). EF Mount.
I want to use the lens on a Sony E-Mount and Bmpcc Camera via Speedbooster.

The following lenses have caught my eye, since they seem to have a good zoom range and optical stabilization, plus they are not too pricy:
- Sigma 50-500mm (http://www.lenstip.com/244.1-Lens_re...DG_OS_HSM.html)
- Sigma 150-600mm Contemporary Version (http://www.lenstip.com/434.1-Lens_re...roduction.html)
- Sigma 150-600mm Sports Version (http://www.lenstip.com/417.1-Lens_re...roduction.html)
- Tamron 150-600mm (http://www.lenstip.com/403.1-Lens_re...Di_VC_USD.html)
- Tamron 150-600mm G2 (https://www.amazon.com/Tamron-150-60...amron+g2+canon)

My favourite one seems to be the Sigma 150-600mm Contemporary. But I heard that the focus ring is a bit tiny and akward to use. So I'd rather go for the Sports version.

But since I haven't found that many videos on the web about it's cinematography capabilities, I wanted to get some information first hand.
Do you guys have experience with any of the listed lenses? Any recommendations or advice?
(Considering image stabilization, f-drop during zooms, focus behaviour...)

Thanks,
Daniel

 

[firehawk]

I have the Tamron SP 150-600mm f/5-6.3 Di VC USD Lens for Canon.
I use it mostly with my Sony cameras with a Metabones EF to E mount adapter.
I like it on my mirrorless cameras (A6000, A7Sii) but it's so big that it's a hassle with my bigger camcorders (FS700R).
I'm happy with the image quality and manual focus. I haven't used it enough to comment positively on autofocus (seems slow).
Image stabilization seems pretty decent for a big lens that is adapted.
As you know, you'll be using an adapter also.

I really do not prefer having to use an adapter due to issues commonly associated with such as slowed performance and other quirks but I really didn't see any other option in order to get a long zoom for my Sonys. I still have a ways to go in learning how to get the most out of it.
I'm happy with it. I got it during black friday sale last year. I don't think I would pay $1100 for it but at the $7XX I paid its good!