FYI, the variable-aperture lenses (like you posted) ramp smaller awfully quickly. So the 70-300mm is f/4 from 70mm to 103mm, and then is f/4.5 from 104mm to 154mm, then f/5 from 155mm to 228mm, and then f/5.6 from there on out. As a result, as you zoom in, your aperture gets smaller (and number after the f gets bigger), and you end up possibly having your subject be blurry since you'll need to lower your shutter speed in order to compensate.
The Tamron posted is f/4 throughout the range, so after ~100mm it will have a wider aperture, which will let in more light, and allow you to have a faster shutter speed to reduce blurriness. That being said, there's not a huge difference between the two, so if you already have the 70-300mm you're probably not going to see that much of a difference. The 70-210mm also only goes to 210mm, so you might miss some shots if they're too far away.
Just some thoughts.
Very good deal. I'm waiting for the Tamron 100-400
For the money, this is much better. Your use case requires a lens that can zoom and takes high speed pictures. Because your target is in motion, you want a faster (larger aperture) lens.
If you need something faster (lower light, indoors, more action), the Tamron 70-200 f2.8 is incredible.
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This or canon 70-300 f4-5.6 usm ii? Lens sharpness wise... need something to shoot my kid's soccer game.
For the money, this is much better. Your use case requires a lens that can zoom and takes high speed pictures. Because your target is in motion, you want a faster (larger aperture) lens.
If you need something faster (lower light, indoors, more action), the Tamron 70-200 f2.8 is incredible.
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The Tamron posted is f/4 throughout the range, so after ~100mm it will have a wider aperture, which will let in more light, and allow you to have a faster shutter speed to reduce blurriness. That being said, there's not a huge difference between the two, so if you already have the 70-300mm you're probably not going to see that much of a difference. The 70-210mm also only goes to 210mm, so you might miss some shots if they're too far away.
Just some thoughts.
If you need something faster (lower light, indoors, more action), the Tamron 70-200 f2.8 is incredible.
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I don't know when it will go on sale, but it's an incredible lens! Super sharp, and the VC makes it usable in a pinch without a tripod
It should as my 70-200 g2 does
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A boy can dream. I'm waiting too
For the money, this is much better. Your use case requires a lens that can zoom and takes high speed pictures. Because your target is in motion, you want a faster (larger aperture) lens.
If you need something faster (lower light, indoors, more action), the Tamron 70-200 f2.8 is incredible.