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Performance difference if any

BobbieBoy 15 47 United Kingdom
10 Mar 2016 12:45PM
I'm considering the new 100-400 Panasonic zoom for M43 or the Olympus 300 f4. has anyone done an assessment of performance of both lenses and a comparison as one is nearly twice the price of the other and what is the relative f stop of the zoom at 300mm.
StrayCat 17 19.1k 3 Canada
10 Mar 2016 6:03PM
From viewing sample images taken with the 100-400mm, it looks like at 300mm it is f5.6, not certain about that, but a series of images were taken at different focal lengths, and it looks like they were taken wide open. I took over 100,000 images with the Panasonic 100-300mm, and I don't see any difference in quality of the images, and I became dissatisfied with anything over 200mm after awhile. I would take a very close look at the 300mm f4, wait and try them both if possible. It's a big investment, so one needs to be as certain as possible, considering one's needs.

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