I tried to snap photographs of butterfly on Sunday (5 Oct) with the newly bought Canon 70 - 200mm. My assessments are:-(i) Due to the long zoom, tripod is essential. Without tripod, at 200mm, there will be hand vibration causing poor image. The bare minimum is a monopod.
(ii) The lens produces vibrant colours.
(iii) While trying to focus on small insect against the background of other objects (eg flowers, leaf), I have observed that the lens tries to achieve alternate focus. I have set the camera to a single point centre focus and it helps but not totally eliminating the problem. This is nothing to do with the quality of the lens, but more due to the environment where there is requirement to snap small insects in motion.
(iv) Bokeh at f4L is good.
(v) Monopod will take away substantially the weight of the lens + camera. It is more mobile as compared to a tripod.
(vi) The only fault I can find is that that the lens has a minimum focusing distance of 1.2m which is too far away from the subject for a large enlargement. Many times, I am not able to achieve the 1.2m distance. The solution may be to purchase a Raynox DCR 250 macro lens as an attachement to the 70 -200mm.
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