Panny 100-400mm news - From the horses mouth

Started Nov 13, 2015 | Discussions thread
OP Nuts About Photography Regular Member • Posts: 271
Re: Not for me

Photo Pete wrote:

F6.3 is too slow with a m4/3 sensor. Diffraction limited and requires too high iso for anything that moves.

If buying for sport or birds in flight just consider one simple comparison. You are likely to be cranking up the iso to achieve the desired shutter speed so will a 400mm f6.3 give you better image quality than the 300mm f4 using an iso of over 1 stop lower? Will it give better image quality then the 300mm f4 with 1.4x tc which will give greater reach whilst still being at a lower iso.

I would doubt it.
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Have Fun
Photo Pete

Photo Pete, I didn't say anything about f6.3. I agree that would be a deal breaker.

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