AlanF said:
9VIII said:
FECHariot said:
jayt567 said:
I'm not sure of the attraction of a lens in this focal and fstop range. Wouldn't a 70-200 f/2.8 and a 2X teleconverter give you more flexibility for around the same price? Just asking, not trying to start a war.
$2000 for a 70-200/2.8 II and another $500 for a canon TC3. This is going to have to be cheaper than the $960 150-600C else why would anyone buy it?
Size is still a negative factor on the 150-600C.
"Reach" is what people judge supertelephoto lenses by.
The Super Zooms generally have sharpness fall off beyond 450mm, the Canon 100-400 was already nearly as good as those lenses when using a APS-C at 400mm vs Full Frame at 600mm.
If the 100-400C has extraordinary sharpness then effective reach will be similar to the Superzooms, while being physically much smaller.
"If" Image Quality is high enough.
Don't forget that Nikon also sells a 200-500mm lens for less than their own 100-400.
The fall off in sharpness above 450mm is less than putting a 1.4xTC on a good 400mm. I regularly use a Sigma 150-600mm C, Canon 100-400 mm II and 400 mm DO II. My copy of the C at 600mm is sharper and more contrasty than the 100-400 mm II with a 1.4xTC and is nearly as good as the DO with a 1.4xTC. Its drawback is being rather slow AF at 600mm. The AF is fast at 400mm. I'll be getting the 100-400mm C in the full knowledge that it will be more limited than my longer lenses but has the advantage of weight and size for some purposes.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=972&Camera=963&Sample=0&FLI=4&API=1&LensComp=990&CameraComp=453&SampleComp=0&FLIComp=7&APIComp=0
I know that TDP isn't the pinnacle of testing, but in this instance the 7D2 on the 100-400MkII is sharper than the 150-600C at 600mm with the 1Ds MkIII.
Technically the 7D2 at 400mm has a narrower field of view as well.
Basically the whole thing is a wash, the SuperZoom lenses are good value for money, but they don't really improve on anything that was already available.
Brian at TDP has noted in some of his reviews that he will sometimes order multiple copies and pick the best one, and he probably only does that with Canon lenses so it's possible that we're looking at a "best vs. worst case" scenario here, but again, the minor differences in sharpness across all these lenses amounts to practically nothing, each option is basically equal, except the 400mm lenses maintain much better Autofocus.
As soon as you put the 7D2 on the 400f5.6 Prime it's just no contest (unless you're in a colour fringing competition).
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=278&Camera=963&FLI=0&API=0&LensComp=990&CameraComp=453&SampleComp=0&FLIComp=7&APIComp=0
The Sports version does look a bit better in the center: http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=278&Camera=963&Sample=0&FLI=0&API=0&LensComp=978&CameraComp=453&SampleComp=0&FLIComp=7&APIComp=0
Edit: And here's the Sigma 150-600C stopped down just in case anyone is curious. Yes the center sharpens up nicely, but it still also weighs 50% more and sacrifices AF speed.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=278&Camera=963&Sample=0&FLI=0&API=2&LensComp=990&CameraComp=453&SampleComp=0&FLIComp=7&APIComp=2
The Tamron 150-600G2 is a bit closer (actually with all the CA I'm tempted to say I like the G1) but again, we're just matching the IQ of a cropped 400mm lens, that's not saying much.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=278&Camera=963&Sample=0&FLI=0&API=0&LensComp=1079&CameraComp=453&SampleComp=0&FLIComp=5&APIComp=0
140-600G1: http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=278&Camera=963&Sample=0&FLI=0&API=0&LensComp=929&CameraComp=453&SampleComp=0&FLIComp=5&APIComp=0
The point of all this being, there is nothing to say that the Sigma 100-400C won't be their best Supertelephoto lens outright (barring only the 500mm f4 Prime of course).