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RF 300mm f/2.8 IS

Started 6 months ago | Discussions thread
OP Victor Engel Forum Pro • Posts: 20,968
Re: RF 300mm f/2.8 IS

Sittatunga wrote:

Victor Engel wrote:

https://www.canonrumors.com/patent-canon-rf-300mm-f-2-8l-is-1-4x-plus-other-supertelephoto-optical-designs/

A glaring detail to me on that page is the image height. I guess this lens is for crop cameras only? With a lens that size, it seems it would make more sense to make it a full frame lens.

The image height needed to cover a 24×36mm sensor is 21.633mm (though going to the nearest micrometre is ridiculously over-precise). It's the radius of the image circle, measured from the centre of the field of view.

Oh, so it's height from center? I guess that makes sense.

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Victor Engel

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