some thoughts on 70-200GM II and 1.4x TC

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jor23 Senior Member • Posts: 1,671
some thoughts on 70-200GM II and 1.4x TC
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alright, I am bored and started thinking about 70-200 GM II and 1.4x TC again.

I have this combo and the 70-300mm FE with me at the moment.

From online reviews, I got the impression that

  1. 70-200 GM II is perfectly sharp from f2.8; no improvement while stopping down.
  2. Adding 1.4x TC dose not cause any image degradation

Base on my tests today, both are false ... in both cases, stopping down one stop helps increase clarity and perceived sharpness. So, don't feel bad if your 70-200 GM II is sharper at F4 than F2.8 ...

Also, I am still surprised how good my 70-300mm FE is. Pre-ordered the 70-200 F4II and now I am debating if I should sell this gem. It is black after all. A rare trait for Sony telephoto lenses. it 'could' rival the 70-200 GM II + 1.4x TC at 300mm/280mm, while being one stop slower. The GM will still win in AF though!

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