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RF-S Lenses - What We Know and What is Rumored

Started 10 months ago | Discussions thread
MAC Forum Pro • Posts: 18,487
Re: RF-S Lenses - What We Know and What is Rumored

MikeJ9116 wrote:

KEG wrote:

MikeJ9116 wrote:

musicmaster wrote:

MikeJ9116 wrote:

Not to mention that the lenses referenced like the RF 100-400mm, the 600mm/800mm and others are not all that bright. If one says the 17-55mm f/2.8 wasn't fast enough for them then how can 600mm/800mm lenses at f/11,and the RF 100-400mm, be something they can recommend? Especially on a crop camera where the use cases for a f/11 lens is so narrow it makes them almost unusable. Even the RF 100-400mm is limited on a crop camera.

Why does the aperture being F/11 make a difference on a crop vs a full frame? It will focus the same, just using the inner 1.6x of the lens.

I assume most buying the 600 and 800 are wildlife / bird photographers where you are outdoors anyways.

If you are trying to defend using an f/11 constant aperture long zoom on a crop camera then god bless you for trying.

f/6.3 is about the slowest lens I would dream of using on crop.

My slowest is f/5.6 with the only exception being the EF-M 15-45mm and I put up with it because of its focal range, size and lightweight.

again, these f8 and f11 lenses are specialty lenses for birding and field sports outdoors in good light

and again, they provide a great value for those involved in these specialty activities -- which apparently you are not involved

for example, the best birding reviewer on the planet says the $2000 R7 + RF 100 -400 is the best value proposition for those just getting into birding vs all the older stuff for similar dollars

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