Olympus 100-400mm F5-6.3 vs Olympus PRO 40-150mm F2.8 + teleconverter

Started 2 months ago | Discussions thread
BobT3218 Contributing Member • Posts: 584
Re: Olympus 75-300mm f4.8-6.7 II

Unless you really need the 400mm reach, I'd be wary.  The 100-400mm is slightly lighter than the 300mm f4 PRO which I have.  I can tell you, first of all, finding a small bird at a distance, then holding the lens steady long enough for a good shot as it hops around is quite a feat despite dual IS.  Perhaps I should join a gym.  At 400mm it would be harder.  Then there is the issue of light.  Despite having 4f, there is never enough light and at 400mm you have only f6.3.  I would find it quite difficult to get keepers.  On the other hand the 75-300mm weighs less than half.

 BobT3218's gear list:BobT3218's gear list
Olympus E-M1 Olympus M.Zuiko Digital 45mm F1.8 Olympus M.Zuiko Digital ED 60mm F2.8 Macro Olympus 12-40mm F2.8 Pro Olympus E-450 +7 more
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