TDP Review -- Tamron 150-600mm f/5-6.3 Di VC USD G2

[AJ]

Some lenses improve further away but most of the tests done on these review sites have fairly close targets.

True. But these distances are representative when you use the lens to shoot little birds.

The G1 has a real sweetspot at 400 mm and I don't see that in the new lens. The G2 has more even performance across the range, just like the Sigma C.

But, we take photos of birds from about 3 to 50 meters. ePhotozine https://www.ephotozine.com/article/tamron-sp-150-600mm-f-5-6-3-di-vc-usd-g2-review-30082 has the G2 with excellent sharpness at 450mm. The reviews very a lot in details!

My question is "have the lenses been properly AFMA'd"?
With the G2 requiring 18 separate points to AFMA it, compared to the 2 points of the version 1, the potential for more accurate focus at intermediate distances is GREATLY improved....

Lens tests like this are manually focused with live-view at max magnification.

 

[AlanF]

Some lenses improve further away but most of the tests done on these review sites have fairly close targets.

True. But these distances are representative when you use the lens to shoot little birds.

The G1 has a real sweetspot at 400 mm and I don't see that in the new lens. The G2 has more even performance across the range, just like the Sigma C.

But, we take photos of birds from about 3 to 50 meters. ePhotozine https://www.ephotozine.com/article/tamron-sp-150-600mm-f-5-6-3-di-vc-usd-g2-review-30082 has the G2 with excellent sharpness at 450mm. The reviews very a lot in details!

My question is "have the lenses been properly AFMA'd"?
With the G2 requiring 18 separate points to AFMA it, compared to the 2 points of the version 1, the potential for more accurate focus at intermediate distances is GREATLY improved....

TDP doesn't use AF, he uses liveview see http://www.the-digital-picture.com/Help/ISO-12233.aspx and I think AF isn't used in general for this testing.

 

[candc]

I have the version 1 lens and use it a lot. The iq is very good but the af performance is not for many situations. The iq of both versions seem pretty similar. If the af performance is better on this new one then it would be worth upgrading.