There is nothing that protects the rear. In comparison, the Nikon 24-70mm f/2.8G has a single non-moving rear element that protects the lens. Keep this in mind when changing lenses, especially in dusty and windy environments. If you do decide to change lenses, make sure to zoom out to 24mm before you dismount it. On the positive side, similar to all recently-announced Nikon AF-S lenses, the Tamron 24-70mm f/2.8 also features a rubber gasket on the lens mount that minimizes the amount of dust that could potentially end up inside the lens or the camera.
Another interesting observation, was the focal length of the lens – the Tamron 24-70mm is not a true 24-70mm lens. When compared to the Nikon 24-70mm, it was a little wider throughout the zoom range. It was hard to quantify this difference, but I would say it was more like a 22-60mm lens instead (depending on focus distance). Personally, I would consider this as an advantage, because sometimes I wish the 24-70mm was a little wider. But I guess it all depends on what focal lengths you use the most. For landscape photography, I tend to stay between 24mm and 50mm for most of my landscape shots, so cutting it a little short on the long end does not bother me.
The Vibration Compensation (VC) switch, along with the AF/MF switch are both located on the side of the lens, similar to Nikkor lenses (the lens comes with VC turned off). There is another switch on the lens for locking the zoom at 24mm, probably used for transportation purposes and to prevent the lens from creeping in the future. All switches are easy to move and use. Tamron uses lens caps similar to the ones that Nikon uses, which is good news. I personally dislike Canon’s lens caps, because they are impossible to remove with a lens hood on.
The large barrel size and a massive front element result in an over-sized, non-standard (for pros) filter size of 82mm. I personally consider this as a cost disadvantage to the Tamron 24-70mm f/2.8, because standard 77mm filters cannot be used with step ring adapters. So when deciding whether to purchase this lens, add the cost of circular filters that you might need to purchase as well. If you use a filter holder system, make sure that your filter holder can accommodate the lens, perhaps with other adapters. I use Hi-Tech and Lee Filter Holder systems and both have 82mm adapters, so it is just a matter of purchasing the right adapter. Thanks to the rear focus design, the front element of the lens does not extend or rotate during focusing, so you don’t have to worry about constantly readjusting filters like on some older lenses.
Although the lens is heavy, it balances quite well on heavier pro bodies like Nikon D800/D4. The same is not true on entry-level cameras like Nikon D3200 – it certainly feels off-balance towards the front of the lens and awkward, due to its size and weight. While it works great on any DX camera, I would not recommend to use it on one, unless you like working in the 36-105mm range. Cheaper and lighter alternatives like Nikon 16-85mm or Nikon 16-35mm VR would be more useful in terms of focal length and size.
The HA007 bayonet lens hood is wider, but much shorter than the HB-40 that goes on the Nikon 24-70mm, as seen in the below picture:
Read more: http://photographylife.com/reviews/tamron-24-70mm-f2-8/2#ixzz2yCTXWOuu
There is nothing that protects the rear. In comparison, the Nikon 24-70mm f/2.8G has a single non-moving rear element that protects the lens. Keep this in mind when changing lenses, especially in dusty and windy environments. If you do decide to change lenses, make sure to zoom out to 24mm before you dismount it. On the positive side, similar to all recently-announced Nikon AF-S lenses, the Tamron 24-70mm f/2.8 also features a rubber gasket on the lens mount that minimizes the amount of dust that could potentially end up inside the lens or the camera.
Another interesting observation, was the focal length of the lens – the Tamron 24-70mm is not a true 24-70mm lens. When compared to the Nikon 24-70mm, it was a little wider throughout the zoom range. It was hard to quantify this difference, but I would say it was more like a 22-60mm lens instead (depending on focus distance). Personally, I would consider this as an advantage, because sometimes I wish the 24-70mm was a little wider. But I guess it all depends on what focal lengths you use the most. For landscape photography, I tend to stay between 24mm and 50mm for most of my landscape shots, so cutting it a little short on the long end does not bother me.
The Vibration Compensation (VC) switch, along with the AF/MF switch are both located on the side of the lens, similar to Nikkor lenses (the lens comes with VC turned off). There is another switch on the lens for locking the zoom at 24mm, probably used for transportation purposes and to prevent the lens from creeping in the future. All switches are easy to move and use. Tamron uses lens caps similar to the ones that Nikon uses, which is good news. I personally dislike Canon’s lens caps, because they are impossible to remove with a lens hood on.
The large barrel size and a massive front element result in an over-sized, non-standard (for pros) filter size of 82mm. I personally consider this as a cost disadvantage to the Tamron 24-70mm f/2.8, because standard 77mm filters cannot be used with step ring adapters. So when deciding whether to purchase this lens, add the cost of circular filters that you might need to purchase as well. If you use a filter holder system, make sure that your filter holder can accommodate the lens, perhaps with other adapters. I use Hi-Tech and Lee Filter Holder systems and both have 82mm adapters, so it is just a matter of purchasing the right adapter. Thanks to the rear focus design, the front element of the lens does not extend or rotate during focusing, so you don’t have to worry about constantly readjusting filters like on some older lenses.
Although the lens is heavy, it balances quite well on heavier pro bodies like Nikon D800/D4. The same is not true on entry-level cameras like Nikon D3200 – it certainly feels off-balance towards the front of the lens and awkward, due to its size and weight. While it works great on any DX camera, I would not recommend to use it on one, unless you like working in the 36-105mm range. Cheaper and lighter alternatives like Nikon 16-85mm or Nikon 16-35mm VR would be more useful in terms of focal length and size.
The HA007 bayonet lens hood is wider, but much shorter than the HB-40 that goes on the Nikon 24-70mm, as seen in the below picture:
Read more: http://photographylife.com/reviews/tamron-24-70mm-f2-8/2#ixzz2yCTXWOuu
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