Is my Tamron 24-70 as sharp?

[JPlendPhoto]

A few days ago I received the Tamron 24-70 f/2.8, a very nice lens! Soon after using it I noticed the photos where not sharp at 24mm at f/2.8, so I decided to try the DotTune method; well this did not work for me. Instead I printed of a focus test chart and practiced taking photos of that. As you will see at 24mm at f/2.8 the focus is terrible, then after a lot of playing around I changed the AFMA to +14 which you can see is a lot better. I was wondering what peoples thoughts are on this, is +14 acceptable or should I send it back and get another copy? Because of this I’m now worried that this copy of the lens is not as sharp as it should be, but then I don’t know how sharp it should be, if that makes sense.

Thanks

 

[tayassu]

I think it's great. If you want more, you'll have to go for the Canon II.
My Tamron 24-70 has to go to the Tamron Service the second time because I can't AFMA it enough on my 7D (frontfocus @24mm, backfocus @70mm).

 

[JPlendPhoto]

I think it's great. If you want more, you'll have to go for the Canon II.
My Tamron 24-70 has to go to the Tamron Service the second time because I can't AFMA it enough on my 7D (frontfocus @24mm, backfocus @70mm).

I'm not saying I want more, I think this is a great lens, I'm just wondering how do I know I'm getting the best out of this lens? I'm having to guess with what my eye sees that +14 is best, but that might not be the most accurate way.
That's not so good for you

 

[R1-7D]

If you want the best out of your lens buy Reikan FoCal and running it through the AFMA tuning portion of the software.

 

[JPlendPhoto]

If you want the best out of your lens buy Reikan FoCal and running it through the AFMA tuning portion of the software.

Which version is recommended?

 

[Dylan777]

I would return it. +14 AFMA is little too much for my taste.

 

[JPlendPhoto]

I would return it. +14 AFMA is little too much for my taste.

What do you mean by your taste? If it gives correct results that's good, right?