There are many new RF lenses and most (excluding the 600/800L primes) offer something unique ie over their EF counterparts. For me, the RF70-200mm/2.8 is so much better than my previous EF equivalent due to size/weight. No issues with weather sealing with the extending front element. No need for a tripod ring IMHO as the weight balance can be handled easily by the body tripod mount. I haven't seen any image quality issues and focusing is fast due to RF connectivity. Lots of other examples as well. The RF14-35mm/4 and RF100mm macro have additional features (focal length/magnification) but I don't need the extra features so I haven't updated from EF.
Canon haven't released a decent UAW astrolandscape lens... arguably ever. the RF16/RF24mm are perfect for their intended purpose which you have described. What genre can't they do?
It did enable unique lenses like the 600/800 f11 primes though. Given the sensor improvements over time for ISO performance, darker lenses aren't the same problem as they used to be. I would rather than a grainy shot that is sharp than miss it completely
The RF lenses are expensive but mostly offer additional features over their EF counterparts. Canon is maximising their ROI for new products. Migration to R mount is exactly that... a migration over time. Options of RF lenses or adapted EF lenses or second hand gives 3 different price points for users. Getting them to buy a body is the first step to an eventual replacement of their lenses which is the greater dollar cost. Otherwise Canon would have had a greater problem of switchers to other systems
I completely agree with you on this... but I have no complaints about the new RF lenses except that they are expensive. They are still selling well so Canon's strategy is working even as lower end bodies etc are being decimated by smart phones.
Was it ever promised? Can you point this out for me? I can't see it ever being released personally. The RF100-500mm is wonderful. Put a 1.4TC on it and the only downside is that it is from 300mm so you are missing 150-300mm range but get an extra 100mm on the long end.
But (I hear you say) that it isn't bright enough or as heavy as the Sigma.... well that is true but you can always adapt that lens perfectly. The eye AF will work perfectly
Unfortunately the 16mm and 24mm primes don't do well for the main things UW are used for such as landscape, real estate, architecture, and everything lese that needs corner sharpness. Good light travel/hiking lenses though. We know from reviews that the 16mm is not good for video, it struggles with holding focus on a moving subject, so only good for fixed distance focus video such as talking head/Youtube/vlogging. Agreed Canon has never released a decent astro lens, most use third-party lenses.
Saw a review by Gordon Laing of the RF vs EF 100 L macro, the new lens has some limitations. It's reported it suffers from focus shift, which is a deal breaker for many macro photographers. The inclusion of focus-by-wire is questionable on a macro lens, as these are often manually focussed and there's no tactile feedback that its at the end of the range when doing macro at maximum magnification. The optical stabilisation on the EF 100mm f/2.8 L Macro is a whole stop better that the RF version. The RF version is sharper wide open at f/2.8, especially at the edges, but at f/4, and even more so at real macro apertures such as f/8 to f/11 they're virtually identical. The RF lens also doesn't take teleconverters even though the EF lens can (didn't know that was a thing). The RF lens has 1.4x magnification which is a bonus, and a pointless SA control. Watching the video, in the portrait photos, to my eye the bokeh is a bit smoother on the EF macro lens.
I've seen criticisms of the RF 70-200mm f/2.8L, namely around the sacrifice of internal focussing for size/weight, the fact that it doesn't take a teleconverter, and that the zoom ring takes too many turns to be useful for fast-paced photography such as sports and events.
Whether the RF 100mm f/2.8L macro or RF 70-200mm f/2.8L are compelling enough to get the owners of their EF equivalents to upgrade is a matter of debate, and whether pros realise any significant benefit for the additional outlay of money is questionable. It's mainly enthusiasts that constantly shell out for new gear. As you mention, the expensive lenses do sell, but we live in a materialistic society where people buy lots of crap they don't need to soothe themselves psychologically and emotionally, or just love playing with tech gear, so that's really more of an indictment on how good the marketing is, not how great the gear is. It's been argued that Nikon makes better cameras than Sony, but Sony has eaten into Nikon's market share because they market more aggressively, and use lots of influencers to promote their products. Canon does have some really awesome lenses that sell well, but the pro market who upgrade infrequently is tiny compared to the bigger market of prosumers, enthusiasts, hobbyists, gear heads and tech dabblers, some of who would bot even utilise a portion of their gear's capabilities.
The point I'm making here is that all lens designs involve compromises and limitations of some sort, and these can change from one model lens to the other. Only by being aware of what they are can photographers select what best matches their needs and budgets. For gear collectors that's a moot point because it's all about 'buying the best tech', a very ambiguous criteria, which raises their hackles when any real-world limitations are pointed out.
The RF 600mm and 800mm f/11 are a unique set of compromises that offer as you rightly state, the possibility of grainy photos rather than no photos is significant. They do put those long focal lengths into the reach of budget photography. Whether people would be happy with that. or frustrated with the lower image quality is a matter of subjective preference.
The 'promised' Canon 150-600mm would be more accurately described as 'rumoured', you're right there. Then again, many of these rumours are a means of baiting to get expectations up and fixation on the new release of products into the market. Works great for Canon! This site is proof of how much that catches many people's interest. Canon marketing should be paying the owners of this site for drumming up interest in new Canon products lol!