This is the Canon RF lens roadmap

neuroanatomist said:

…would be essentially pointless. At those focal lengths, the image circle diameter is not limiting so there would be nothing gained, an RF lens would be the same size.

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Ohhh ups, my mistake. I actually meant a full-frame RF 250-750mm tele-lens. My wording was misleading, I'll edit it asap.

Dragon said:

An RF-s 250-750 that topped out at f/8 would be interesting. The R7 works amazingly well with the 800 f/11, so a 1 stop faster zoom that was still light and compact should be a hot seller.

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The RF 100-500mm with the 2xTC for when I need more length would be my choice over a 250-750 f/8. That size of zoom would have a 95mm front element and be bulkier and heavier, probably of similar size to the Tamron or Sigma 150-600mm f/6.3.

Exploreshootshare said:

Since I'm already wishing for it: I'd take F3.5 - 5.6
Considering it is a Canon lense, I'd guess F5-8 hoping it won't be F11 at long end.

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A 750mm f/5.6 would need a whopping great 134mm front element and be rather heavy as well. It would be bigger than a 500mm f/4.

I had the 1.4x and the 2x RF extender and sold them. Imho, I hated the fact that they only work between 300-500mm (so retrospective between 600-1.000mm and 420-700mm) because especially on safari you sometimes need a long focal length to get very close and then you turn around and you need something much wider as 420mm or 600mm...That´s why I sold them both...

In addtion, a RF 250-750mm (or similiar) which takes adapters could be great.

Oh, and some Canon fans would favor such a lense to shut down the Sony fanboys

AlanF said:

A 750mm f/5.6 would need a whopping great 134mm front element and be rather heavy as well. It would be bigger than a 500mm f/4.

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Oooooooook, I surrender It was simply a wish based on the fact that Canon filled several patents which such focal lengths.

neuroanatomist said:

…would be essentially pointless. At those focal lengths, the image circle diameter is not limiting so there would be nothing gained, an RF lens would be the same size.

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Agreed that the objective would be the same size, but I think you will find that much of the glass in back end of the lens could be smaller with the restricted image circle. OTOH, a FF lens would be an even better seller and probably not that much more costly to make. Either would be a killer bird lens for the R7.

31 RF lenses (29 Full Frame and 2 APS-C) plus 2 extenders have been released since 2018.
That's about 8 lens /year.

If Canon keeps the same pace in 2023, hopefully we will see more than the 6 lensens remaining in the list written by @Canon Rumors Guy

Canon TS-R 14mm f/4L
Canon TS-R 24mm f/3.5L
Canon RF 10-24mm f/4L USM
Canon RF 18-45mm f/4-5.6 IS STM
Canon RF 35mm f/1.2L USM
Canon RF 500mm f/4L IS USM


Maybe a RF 50mm F/1.4 USM? A 200mm F/1.8?
Or "just" a few APS-C RF lenses (22mm F/2, 10-18mm, 55-250mm)?

I wouldn't mind genuine Canon RF extension tubes. I would trust them more than the currently available third party ones, and I'd like to see how they work on my 35mm F/1.8 and 85mm F/2 STM lenses.

Canon TS-R 14mm f/4L
Canon TS-R 24mm f/3.5L
Canon RF 10-24mm f/4L USM
Canon RF 18-45mm f/4-5.6 IS STM
Canon RF 35mm f/1.2L USM
Canon RF 500mm f/4L IS USM

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Five out of those six are "L" lenses, and will have four-digit price tags and thus be unaffordable to non-professional photgraphers. What I should like to see are some affordable RF-S lenses. The rumoured 22mm and 32mm lenses, being ported from M lenses, should have attractive pricing points, but a long zoom would also be good if under €/£/$ 500.

Photographix said:

Five out of those six are "L" lenses, and will have four-digit price tags and thus be unaffordable to non-professional photgraphers. What I should like to see are some affordable RF-S lenses. The rumoured 22mm and 32mm lenses, being ported from M lenses, should have attractive pricing points, but a long zoom would also be good if under €/£/$ 500.

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That would be a yes on the M ports, but an RF-s long zoom wouldn't be much smaller than a FF since telephoto objective lens sizes are dictated by f stop, not sensor size. The RF100-400 is already available and about as small and inexpensive as it is going to get.

Photographix said:

...but a long zoom would also be good if under €/£/$ 500.

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Ask and ye shall receive. Not as a rumor, but as something you can buy today (albeit just barely under $500, by $1).


Note that with longer lenses, there is no design advantage of a smaller image circle because the size of the image circle is not limiting with those lenses, rather the entrance pupil diameter (functionally equivalent to the front element in a tele design) is the limitation. That's why you don't see Canon APS-C lenses longer than 200/250mm, it's not more expensive to make them to cover a FF sensor.