55-250 stm vs 70-300 usm is ii on a 90D

Started 4 months ago | Questions thread
TeeJay626 Regular Member • Posts: 392
Re: 55-250 stm vs 70-300 usm is ii on a 90D

losifanatic wrote:

I dont know if i got a bad copy of the tamron but man this thing is just awful when zoomed it. Its not the sharpest nor does it have good contrast. My 18-135 annihilated the tamron

That's sad to hear.

I had a similar experience with the Sigma 100-400C.  After waiting and researching, I bought one new.  I was extremely disappointed.  I must have had a bad copy, but it was very soft and poor contrast as well.  I tried everything and used the USB dock, but it was very disappointing.

I was very happy with my Canon 70-300 II, and of course am extremely happy with my Canon 100-400L II.  Hopefully it's just a bad copy and you can exchange it.  I had the same experience with my 100-400L.  First copy had serious focus issues and was replaced.  2nd one is perfect.

Hope it works out for you.

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