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| p.2 #8 · p.2 #8 · Tamron announces 150-600mm Ultra-Telephoto Zoom Lens |
If you look at past and current lenses, it should give you an idea of that.
Usually, primes have the focal length their makers claim them to have.
But not zoom lenses, even canon's and nikon's.
They can be at infinity or at least be very close to what is claimed at infinity, but focal length decreases as does focusing distance.
Found it: this lens is 582mm at the long end. That's about 3% less than stated, so probably within statistical error. Canon 100-400 is circa 383mm at the long end, and nobody is complaining.
Most, if not all zoom lenses, suffer from focus breathing.
And the cheaper the lens and the longer the zoom range, the worst.
Third party lenses are usually worst in this regard.
I brought this up because, in this case, the main selling point of this lens will be the 600mm. And people, under many shooting circumstances, won't be getting 600mm...
It's like sigma's 50-500 or 120-400 or 150-500.
Does this mean this particular tamron lens will be the same? Well, IMHO I believe it will be similar, because while I am no engineer or lens designer, for this lens to be a true 600mm at...Show more →
Nikkor 28-300 is a bag of compromises, you can hardly expect this one to match (much less exceed it) in this regard. Even if it shrinks to 450-500mm at MFD, it's still much better than the next matching lens. (say, Sigma 50-500 really tops out at about 470mm even at infinity).
Disclaimer: I will readily admit I can be wrong. I am not, by any means, an expert.
Nor am I. But I have trust in the makers - on the whole, Tamron hasn't disappointed us once lately, except by being a little slow in updating their mid generation lenses with Ultrasonic motors.
And don't get me wrong: I am not a hater. Definitely not, since I own several third party lenses. And I want third party makers to excel, because canon lately is going nuts with their price strategy and given the portuguese economy state, I fear I won't be able to afford new canon glass anymore in the near future.
They are very different lenses (regarding focal length) so I agree, in my case, it would supplement, not replace.
Therefore I fail to see the connection.
150mm f/5 might seem a tad uninspiring in itself, but as a short end of a zoom that goes to 600mm, I think it's pretty easy to stomach. Especially since most people likely have that length covered by a shorter, faster zoom (70-200 in whatever flavour most probably). Making it faster would've involved a drastic increase in size/price, or a decrease in quality (or both).
Let's hope this is one of those examples, though truthfully I won't hold my breath (given the price)...
Nobody will. People with money to burn and L/big white purists are gonna sneer at this lens (or already are doing so), but for the average amateur, it looks very refreshing. The old 200-500 was, while compact, pretty dated due to lack of IS and USM.