Do we still need a TC?

Started Nov 11, 2013 | Discussions thread
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Alastair Norcross Veteran Member • Posts: 5,570
Re: Do we still need a TC?

awaldram wrote:

Anastigmat wrote:

If your lens is f/5.6, a 2x teleconverter requires manual focusing, Unless you focus correctly, you won't get a sharp image.

Only if you own a Canon, a Pentax will Auto focus an f5.6 + 2x converter with ease.

Really? A Pentax will perform phase-detect auto focus with a lens whose widest aperture is F11? I didn't know that. How fast is it?

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