Canon News has uncovered a patent with various APS-C RF mount lenses. On the Canon Rumors RF mount lens roadmap, I have had an RF 18-45mm f/4-5.6 IS STM for quite some time. I've always thought this was a strange focal length for full-frame image sensors based on Canon's history of kit lens focal lengths.
I have not heard anything about an APS-C image sensor equipped sensor for the RF mount in quite some time, but I still believe such a camera is part of Canon's long-term plans.
Canon RF-S 15-45mm F4-6.3
- Focal distance: 15.46mm 24.00mm 43.65mm
- F-number: 4.16 4.92 6.50
- Half angle of view: 38.73° 29.65° 17.38°
- Image Height: 12.40mm 13.66mm 13.66mm
- Total length of lens: 96.84mm 85.69mm 84.27mm
- BF: 26.19mm 34.03mm 49.18mm
Canon RF-S 18-45mm F4.5-6.3
- Focal length: 18.53mm 30.00mm 43.65mm
- F-numbe:r 4.56 5.48 6.50
- Half angle of view: 33.78° 24.48° 17.38°
- Image height: 12.40mm 13.66mm 13.66mm
- Lens total length: 89.11mm 81.23mm 81.40mm
- BF: 28.48mm 38.21mm 47.77mm
Canon RF-S 16-45mm F4-6.3
- Focal length: 16.41mm 24.00mm 43.65mm
- F-number: 4.21 4.90 6.50
- Half angle of view: 37.08° 29.65° 17.38°
- Image height: 12.40mm 13.66mm 13.66mm
- Lens total length: 99.00mm 87.77mm 83.61mm
- BF: 24.60mm 31.13mm 45.64mm
Canon RF-S 20-45mm F4-6.3
- Focal length: 20.01mm 27.0mm0 43.65mm
- F-number: 4.60 5.15 6.50
- Half angle of view: 31.79° 26.84° 17.38°
- Image height: 12.4mm0 13.66mm 13.66mm
- Lens total length: 92.00mm 84.32mm 83.15mm
- BF: 33.77mm 39.3mm 52.69mm
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Don't forget there's also a patent for an APS-C 100-400mm F5.6-7.1. Such a zoom is also to be found on CR's road-map, and it could be super-cool to announce together with an "R7" :)
And recently some APS-C 55-250mm telezoom patents was discovered too.
I'm starting to become really optimistic on RF APS-C ...
If these patents are M oriented, then the 100-400 seems the most likely as it would fill an obvious hole in the line.
There may be a market for a crop sensor R body, but I wonder just how large that market would be, when the current R system offers both a full frame and a crop sensor body in one. Not discounting it entirely, but I think it will have to wait until after Canon issues the R3, R1 and high-megapixel R body.
It's the old discussion repeated again and again on these comment threads and all photography forums.
But for someone shooting both fullframe and crop, I understand demand is considerable smaller for a crop camera when high-res fullframe cameras has a crop mode.
But I'm not a fullframe user. I want a "cheap", compact and light system, and preferable more light and compact than my current APS-C DSLR system. Yes, you can mount cheaper, lighter and smaller (EF-S) lenses using crop-mode on an R5, but the price of an R5 is way beyond what I ever can justify paying for a camera. If the R6 was a 20megapixel crop-camera though, I would probably be shooting mirrorless now...
I understand, but as they say, "we don't know what we don't know." By that I mean, we don't know just how much of an impact on pricing the smaller sensor might have. It seems like most of the people wanting an R7 assume it will follow the pattern of the 7D -- that is, it will have high end R3 or R1 features with about the only compromise being the crop sensor. And that it will be priced significantly below the R5.
What we don't know is just how much of a savings the smaller sensor represents. If the price differential remains what it was seven years ago, then we could see a crop sensor version at much lower cost, but if Canon has increased efficiencies in sensor production, then the smaller sensor might translate into only a small difference in pricing.
1/3 stop more money for Canon, 1/3 stop less light for us
For a smaller mount stick with EF-S or EF-M.
Do people think there will be an "RF-S mount"? I think by "RF-S" people are referring to lenses.
Btw, I have newer thought of Canon's DSLR "APS-C mount" as being different from their fullframe mount. They both have EF-mounts in my eyes. It's just there's a mechanical obstacle on fullframe cameras preventing EF-S APS-C lenses being mounted by mistake. They don't need that obstacle on fullframe RF cameras though, because the fullframe cameras also have a crop-mode.
Also EF(/EF-S) mount is not smaller than RF. They have exact same diameter.
I don't know, maybe I misunderstood you?
There has never been anything attractive for me about the EF-M system. I want a system that's highly focused for advanced users. To put things in perspective I have a system with 11 lenses for my 7DII, and though I have known it is the future, there has been nothing atractive for me in going mirrorless until Canon introduced their Animal AF on R5/R6.
So by small and lightweight, I'm not talking about being "pocketable". I'm talking about something being convenient and versatile. A system where I feel I can carry a 3-4 lens kit when going on a "photowalk".
I don't think there will be an RF-S mount, the full frame RFs will go into crop mode when one of these lenses are mounted.