09-12-2018, 08:49 AM
Hi Toni,
i´ve had the same thoughts about a tele-zoom like you. I have had a Canon 100-400 IS which had beed quite good - but only up to 400mm. Converters 1,4 or 2x will slow down AF (2x = no AF) and the optical results have been cruely... so i have decided to upgrade....
First of all: a Canon 300mm f 2.8 which is brilliant sharp and has a good weight. In combination with full-frame and converters it goes up to 600mm. I´ve tested it with a 5DMK3 - good sharp Images with a lost of sharpness to the edges and an AF-Speed which will be good enough for a visit at the zoo - but not fast enough for birds...
This combination has had "budgetary ulterior Motive" cause this lens can be bought for about 1000€ (w/o IS) and the converters are already my own.
Second has been the comparison of the Sigma 150-600 C or the Tamron G2. Next has been reading and reading with compromising Charts and technical issues. The interesting Zone is from 400mm up to 600mm.
Before that i´ve bought the 70-200mm tamron G2 lens with the dock. A really good optical "block"; the Software for corrections is quite pretty too.
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
i´ve had the same thoughts about a tele-zoom like you. I have had a Canon 100-400 IS which had beed quite good - but only up to 400mm. Converters 1,4 or 2x will slow down AF (2x = no AF) and the optical results have been cruely... so i have decided to upgrade....
First of all: a Canon 300mm f 2.8 which is brilliant sharp and has a good weight. In combination with full-frame and converters it goes up to 600mm. I´ve tested it with a 5DMK3 - good sharp Images with a lost of sharpness to the edges and an AF-Speed which will be good enough for a visit at the zoo - but not fast enough for birds...
This combination has had "budgetary ulterior Motive" cause this lens can be bought for about 1000€ (w/o IS) and the converters are already my own.
Second has been the comparison of the Sigma 150-600 C or the Tamron G2. Next has been reading and reading with compromising Charts and technical issues. The interesting Zone is from 400mm up to 600mm.
Before that i´ve bought the 70-200mm tamron G2 lens with the dock. A really good optical "block"; the Software for corrections is quite pretty too.
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