I am 6'2" and for fun go paddle my canoe solo for 20+ K...... Last weekend I carried my canoe over 9K of portages (Cedar-canvas, twice the weight of those modern light weight ones), so I think it is safe to say I have sufficient upper body strength...... I find the Tamron 150-600 to be heavy.Isaac Grant said:scyrene said:Isaac Grant said:Well its clear that MJ has made his decision and bought himself a very good lens. Congrats and I look forward to some results. Also am still hoping that I am wrong and the the 100-400ii is in fact better than my Sigma so that I can switch. I'm always happy to buy new gear. ;D
Tom, I think you are slightly confused. It is not the lens that is not sharp at 500-600 for BIF, it is your (and by that I mean all of us that are not freakishly strong and steady) ability to hand hold the lens steady enough. It is extremely difficult to pan and keep pace with fast flying birds in general. When you introduce human error, shaking or not panning at the perfect speed to keep up with your bird then things get even harder. That issue is compounded greatly by the extra magnification. In addition you are shooting with no IS as well at 600mm. Unless you have a very high shutter speed and perfect technique your results will not be tack sharp. So I think that considering the conditions that you did very well. Working out more is funny enough a great way to improve your BIF shots with large and awkward lenses that are fully extended. Now I am not calling you weak so please take no offense. It is just that the Tamron is a large and heavy lens. When fully extended it is far from easy to hold steady. If you add fast moving birds and any degree of wind then that complicates matters even more. I think these are pros for the Canon by the way. A bit lighter and shorter of a lens, better IS for BIF and weight is distributed better so easier to hold steady while panning.
I've said this before elsewhere, but is it really a matter of strength? I am decidedly weak, especially my hands and wrists, but I use my 500L handheld all the time. Birds in flight, not all that much, but I have done plenty over the years. Maybe it's a matter of developing a technique that works for you - though I've no doubt building muscle strength would help. Just my experience.
(The biggest problem I have with BIF is finding/keeping the bird in the frame, especially smaller ones with unpredictable flight paths).
I can say that when I was shooting with my 400 5.6 L that it felt like there was nothing attached to the camera. Very light and easy to carry and use. My Tamron and now Sigma are much heavier, and longer. When fully extended they are very top heavy. Any wind in the area will catch hold of the lens hood and push it around like a sail. I know that I get tired holding this thing up for long periods of time and I am quite fit. 43, 5'10" and 165 pounds. I have tried a friends 500 L ii and it is balanced much better than the long zooms so it is therefore easier to hand hold despite the added weight. I know that for me, I suffer from some fatigue after long periods of time of hand holding and any extra strength helps with keeping things steady while panning or hold still while photographing a bird coming straight at me. That combined with proper technique is the key.
For stabilizing the lens better than just hand-holding it, lean against something and you will be more steady. If you can lean the lens barrel/supporting hand against a tree, side of a building, pole, whatever, your camera/lens becomes a lot easier to hold and the stabilization is greatly improved again.... Shooting a long lens is different technique than a short lens.
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