Any one with 70-200 Tamron and 1.4X or 2X converter?

Started Nov 15, 2008 | Discussions thread
Sandy Senior Member • Posts: 2,142
Re: Any one with 70-200 Tamron and 1.4X or 2X converter?

Maxxuman wrote:

Sandy wrote:

The Kenko Pro300 will connect up. However, I have the Sony 70-200
and the expensive, matching Sony 2xTC. It shows a little benefit
over the cropped image without TC but is not a patch on the Tamron
200-500 at matching focal lengths. I have the Kenko Pro300 1.4x and
it doesn't really give benefit over a cropped image.

I agree with statements by others that - for a TC to give genuine
benefit it has to be used on a good prime lens (or just possibly a
top class zoom) and be designed specifically to match that lens. It
is unlikely that a TC above 1.5x will be beneficial. However, they
are fun!

One thing that people seem to overlook about a TC is that in practice
it also gives you a larger viewfinder image that you can use when
choosing/verifying your point of focus, while also giving the AF
sensors a larger target to lock onto. That can partly mitigate the
loss of available light, as long as the light is good to start with.
Personally I think the Tamron could fit your description of a top
class zoom (optically it's been rated very highly) and it probably
would work well with the Kenko Pro 300 1.4x. Even I probably
wouldn't bother trying it with a 2x TC though.

I can't speak for the Tamron 70-200 but whilst the Kenko 1.4 connects up with the Sony 70-200 it's better to use a cropped image. I keep buying TCs and keep being disappointed - perhaps I'll learn!

 Sandy's gear list:Sandy's gear list
Sony a77 II Sony 70-200mm F2.8 G Sony DT 18-250mm F3.5-6.3 Sony 70-400mm F4-5.6 G SSM Sony DT 16-50mm F2.8 SSM +1 more
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