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

Started 10 months ago | Discussions thread
MikeJ9116 Veteran Member • Posts: 6,955
Re: RF-S Lenses - What We Know and What is Rumored

musicmaster 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.

It's a cheap $700 lens that is equal to around 900m FF which is fantastic for wildlife. Show me another 600mm lens for the same price.

But I guess something like these clearly must be fake and terrible photos.

Grey Butcher Bird | Lekha Suraweera | Flickr

Great Egret | 17th January 2023, Causeway Bay Typhoon Shelte… | Flickr

Parrot in Rome | Roberto Villani | Flickr

Small Grass Yellow- | Taken hand held four and a half metres… | Flickr

If an f/11 lens suits a user that can live with its limitations then they should buy it.  I was pointing out the irony of a person saying an f/2.8 crop lens as not being bright enough and then recommending f/11 lenses to be used on a crop camera.

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