OK folks! ; This lens is now almost here - Jan 17 rumored release for Canon & Sony mount, Nikon just behind. ; All of the tests seem to be bearing out that this is quite sharp and nice even at 600mm wide open. ; What's more, the price is not all that different than the Tammy 200-500mm price was 5 years ago - $1,069!
I've officially traded my Tamron 200-500mm lens for the new 150-600mm F5-6.3 lens...it just makes all the sense in the world. ; I can still use my faithful 300mm F4 prime and TC while I wait, and the 150-600mm lens would have rendered my 200-500mm nothing more than emergency backup duty...so no sense holding onto it. ; I can still get $500 or so for the 200-500, which cuts the price of the new lens in half. ; And the new lens adds 50mm on the wide end, 100mm on the long end, USD silent focus drive rather than screwdrive, new coatings, focus limiter switch that the old one didn't have, AF/MF switch which the old one didn't have, and even moisture-resistant construction for minor encounters with light rain or mist...all in nearly the same footprint as the old lens, just a bit heavier for all that extra range.
Now, I just need to see when the 150-500 will actually ship. ; The initial rumor had Canon mount at Jan 17, and the Sony and Nikon mounts to be delayed to Spring. ; But several sites with preorders have placed the Sony mount availability as Jan 17 too, and a few calls to them reveal that they are confident about it - so fingers-crossed, it may actually come out when promised...and if not, I won't be too surprised. ; I'm only waiting to put the new order in for a few more days until I can confirm what I get for my 200-500 - and I'll decide if I want to order from Amazon or B&H (and I'll use the TMIP click-through this time!).