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500mm vs 600mm?

Started Nov 13, 2017 | Questions thread
WilbaW
WilbaW Forum Pro • Posts: 11,643
Re: 500mm vs 600mm?

1Dx4me wrote:

WilbaW wrote:

BirdShooter7 wrote:

I guess English isn't your native language...

Personal insults are not allowed on this forum.

but you don't seem to refrain yourself from doing it, hypocrite!!!!

Quote from this thread please.

or you are just intentionally miss understanding. A f/4 lens will most definitely still be able to achieve focus in lower lighting conditions than a f/5.6 lens and that is what we are talking about.

We are talking about why they will perform the same, all other things being equal.

You can work it out by solving the f/5.6 + ND filter vs f/8 conundrum.

Have you worked it out? 

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