A few days ago I wrote about how the Tamron 24-70 2.8 that I had been testing out was not performing well at all. I had used the lens in various locations and situations with my D7000, and in all of them the lens was back focusing or and very soft. I shared my initial thoughts in the post with the hope that maybe someone else was having that same problem or if maybe I just had a bad copy of the lens. In the comments to that post Lee Morris of Fstoppers responded, and through our conversation in the comments I came to the conclusion that the issue could very possibly be my D7000 and not the lens.
Today I went into the camera shop to see what Mike had to say and to see if he had any bodies I could use to test my theory. It just so happens that Mike had a D300s in the store that I could use to test out the lens, and after a few test shots it was clear the Tamron 24-70mm lens was working perfectly on the D300s. Since I had my D7000 with my I decided to take a few test shots with the two cameras to test. As you can see in the images below one shot is focused perfectly fine, and the other is out of focus and just plain soft (click on the images for full size).
The first shot is from the D300s and the second is the D7000, I was focused on the Tiffen Filter farthest left and third row from the bottom. I do not have another D7000 around to test and see if it is just my D7000 or if it is a problem that other D7000’s might have. Its odd because my D7000 performs perfectly fine with my 300mm F4 and my 50mm 1.8, though both of those are Nikon lenses. Maybe this has something to do with the lens being third-party.
Anyways, I am happy to report that I can now continue my review of the Tamron 24-70mm 2.8 VC USD. Keep an eye out.