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| sent on 25 Giugno 2016
Pros: A 300 2.8 AF for canon at the price of a manual focus. Very well built, sturdy, good IQ, good contrast, nice blurred. AF is fast enough for the type.
Cons: Weight, AC TA.
Opinion: strictly by the last 3 versions derives manual focus Adaptall-2, of which the second and the third are internal fire. The Canon EF version is particularly heavy: 2800g, compared to about 2,300 with the other attacks. Obviously it is not stabilized and the AF is operated by a simple electric motor, in fast enough and precise truth, once the micro adjustment on the single machine body. There are compatibility issues with modern bodies and this also applies to other tamron with EF attack "ancient." I had the 70-210 2.8 SP and everything flowed smoothly even there. If closed by F4 up, I could not find the image defects, if not a modest residual AC disappearing entirely to intermediate diaphragms. A 2.8 instead of the AC is the main flaw, which is seen especially in the light and dark passages, obviously. The image is always bright and contrasty. Council to use it smooth on FF to exploit the brightness and focus. 6D is godilissimo andfocheggia with precision. Accept duplicators, including the Canon 1.4x III which partly enters into the lens and therefore does not go anywhere. But the most she asked about detail (multipliers, small sensors and hyperdense ...) and zooms in to the AC. In these cases it is wise to turn a bit 'the diaphragm, however, entering the field of use of zoom lenses lighter and stabilized, losing a bit' of meaning. So interesting perspective but with limitations due to age and design tolerance with respect to the AC, I'm going to enjoy smooth, for what it is, for portraits and pictures in the halls. For what it costs to do a lot, but does not replace the existing Canon, and God forbid. It must be said that remains a cheap way to get to 420/4 or 600 / 5.6, then if you have the patience to eliminate the AC in post or decide to close a stop, keeping to 600mm the AF operation on any camera because nominally 5,6.rnrnEdit: I made a series of comparative shots with the canon 300 F4 L IS F4 and 5.6. The Tamron comes head-on from the comparison, The sharpness is very similar and the residue of AC is comparable. It must be said that the visible AC 2.8 is purple easily corrected in LR and already F3,2 the drop is significant, compared to canon color has a little duller and is more contrasted. All things that LR can be changed at will. |
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