I recently made the decision to cancel my order for the 800PF and keep my 500PF to use with my 1.4 TC. I also purchased the 400 4.5. I’ve been very happy with 500PF and 1.4 the last few years. Last week, I put my 1.4z tc on the 4004.5 and was blown away with the results. So, I did a few (very unscientific) side by side tests of the 500 +1.4 tc compared to the z400 + 1.4 tc. Both shots were on the z9. In my opinion, the 400 4.5 shots were significantly sharper and produced an overall more pleasing image. I’ve read many of the reviews of z 2.0 TC and most are just ‘so so‘ when used on this specific lens. I don’t intend to sell my 500PF, but I now wonder if the 2.0 on 400 would be a better choice to (occasionally) get to the 700-800 range than the 500 + 1.4. So, is there anyone out there that has been in a similar position with these 2 lens, TC combinations? I would really be interested in your thoughts.
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