I'm just coming up to speed with using this lens, but when I manage to get the settings right, the pictures it takes are awesome.

I have gotten alot of tack sharp pictures even when I first started using it which is amazing since I was not used to the weight of it yet and my hands were shaking

Fully auto and clear, crisp pictures even at full focal length.

The issue I personally see is that when ISO is pushed to around 2000, and f-stop is closer to the f11 position, pictures do seem a bit grainy, especially if you trim the photo even more after the shot.

Now, I may rent it again, from a different company, just to see if maybe I got a bad copy because I've seen some really good pictures taken with this lens, floating around on the internet.

I have great stop sign pictures!

It takes excellent, sharp, detailed pictures

Try putting it on a tripod, and I will bet the pictures will be razor sharp

Your hit rate for sharp pictures will improve

It takes excellent pictures even though my D3400 isn't one of the more expensive models.

Have gotten some great pictures with it

Clear great pictures.

GREAT lens I installed it on a Canon 7D and it works great very sharp pictures even hand held

Have already taken some beautifully clear, focused pictures at 600 hand held

I have taken wonderful pictures with it already and all hand-held.

When the conditions are ideal (e.g., good light), it can produce sharp enough pictures

Got great pictures of wild life super far away, and it performed great.

Awesome lens, works, really good, fast focus, sharp pictures

A picture is worth a thousand

I took the lens to a local dealer with an Tamron representative and they gave me tips on trying to get the best picture possible ,but even they admit the lens might have to go back

I do agree with the experts about using the lens at 600mm, the pictures are soft but their are worthy of your albums

Razor sharp pictures with the Nikon D7100 & D810.

Great lens that can provide very sharp pictures in sunny conditions when used with my Sony DSLR cameras (A77 mark II and A7S with adapter)

WOW, take the best pictures.

When I first got this lens it took good pictures but over the last 6 months or so since buying it the inside of the large glass element has collected a lot of dust

One does not have to spook the subject by getting nearer to get a good picture.

I found my nikon 300mm lens insufficient to get good birding pictures

I upgraded my tripod so I can not wait to see how well those pictures turn out.

I know the picture of the wolf is pretty awful, but I included it specifically so I could point out that the wolf was about a mile and a half away from

You can hand hold this lens but be prepared for a workout and a reduced number of sharp pictures

If I manage to get the screws out and replace them it may take good pictures again but probably also be a constant dust issue

I tried it with a tripod, and the pictures again, became incredibly sharp.

No as sharp I like it