Teleconverter x2

Started Mar 7, 2017 | Questions thread
lhkjacky Senior Member • Posts: 2,918
Re: Teleconverter x2

jennyb wrote:

I have just purchased a Tamron x2 teleconverter to use with my Tamron 70-300mm lens on my Sony a58. I don't seem to be able to take pictures in 'auto' mode. I am not a very accomplished photographer and do rely heavily on auto settings at the moment. Is this not an option with a teleconverter or is there a way to fix the problem?


Personally, I do not recommend using 2x TC on small aperture zoom lens.
TC is only good for large aperture tele prime lens.

2x TC reduce 2 stop of max. aperture, camera cannot focus if the max. aperture is too small.

Kenko Teleconverter is a special case. It can still AF with Sony 70-300 G in good light, but the AF speed is super slow.

 lhkjacky's gear list:lhkjacky's gear list
Sony a77 II Sony DT 16-50mm F2.8 SSM Tamron SP 70-200mm F/2.8 Di VC USD Tamron SP 150-600mm F/5-6.3 Di VC USD Ricoh GR +6 more
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