W
WarStreet
Guest
After some math, I concluded that 400mm @ 5.6 should give me a good background blur (different from depth of field) when used on a FF camera for a framing about 2m - 2.3m height in landscape orientation. In fact this combination blurs the background slightly more than an APS-C 300mm @ 2.8 combination, after adjusting the subject distance to get the same framing. I will get even more background blurring in portrait orientation for the same height, and for tight crops, so if I am not missing something, I am interested in getting a copy of this to be used in sports on a future 5DIII in daylight.
I considered the bigger lenses alternatives too, but apart from the high price problem, I am afraid of weight, especially since I will also have a 70-200 on another body, and I prefer to move around comfortably and fast rather then standing still or move awkwardly due too a big lens + monopod.
The weak points of this lens are
(1) no IS, which I don't need in sports (I switch it off on my 70-200 2.8 IS II)
(2) No weather sealing, this is good to have but I will fix this problem with a hydrophobia (might be too big for this small lens) or an equivalent product.
(3) 3.5m MFD, which is not a problem for my use.
The strong points are
(1) very good image quality, (resolution, CA, vignetting, distortion, flare, bokeh)
(2) very fast AF which is extremely important for me.
(3) weight of 1.25kg & cheap price.
Am I missing something ? Do you have any other alternatives with my priorities in mind ?
I considered the bigger lenses alternatives too, but apart from the high price problem, I am afraid of weight, especially since I will also have a 70-200 on another body, and I prefer to move around comfortably and fast rather then standing still or move awkwardly due too a big lens + monopod.
The weak points of this lens are
(1) no IS, which I don't need in sports (I switch it off on my 70-200 2.8 IS II)
(2) No weather sealing, this is good to have but I will fix this problem with a hydrophobia (might be too big for this small lens) or an equivalent product.
(3) 3.5m MFD, which is not a problem for my use.
The strong points are
(1) very good image quality, (resolution, CA, vignetting, distortion, flare, bokeh)
(2) very fast AF which is extremely important for me.
(3) weight of 1.25kg & cheap price.
Am I missing something ? Do you have any other alternatives with my priorities in mind ?