09-12-2018, 09:52 AM
(09-12-2018, 08:49 AM)Tomtom Wrote: ....
I have decided to buy the Sigma lens. But why? One reason was the better Image Quality at 600mm. I know, you can get a "monday model" in both cases. And both companies are well known for centering Problems...
The main reason has been that sigma offers more possibilities for free user adjustments called C1 and C2. And here is a real improvement cause you can set IS-mode and AF-Speed in combination with a range Limit. This will help you to find the birds... and use only stabilizing at the "shot Moment".
So i hope this helps for your decision...
Tom
Centerring problems are not exclusively attached to Sigma or Tamron, just saying
That the Sigma Contemporary @ 600mm should be sharper than the G2 of Tamron is new to me and I'd like to see proof of that. That the Sports version is a tad sharper in the center, I can believe, because I had that and exchanged it for the Tamron. That one has a couple of benefits worth to mention, such as
- a much better foot/collar than the Sigmas which is detachable. For the Sports version there's a better foot available, longer and already Arca-Swiss profile, but it's expensive. For the contemporary version, the foot is rather short.
- A clutch for the FL only has Tamron. Sigma's sport version has some fixed positions
- I had less troubles to adjust the Tamron to the D850 than I had with the Sigma adjusting it to the (at the time) D810.