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You could argue that you are better off with EF lenses for all mirrorless bodies too. Canon RF and M,Fuji-X and G, Sony-E, L, MFT, Nikon Z and even Hasselblad-X mount all have credible electronic adapters for EF so if you use mixed bodies or even just to soften the blow if you do a wholesale change from one brand to another then having lenses with such universal compatibility is a real boon. Not to mention the massive choice of 1st and 3rd party options as well as the cost benefits of the 2nd hand market. In the case of Canon, it also immunises you from potential shithouse behaviour of firmware blocking of other adapters because, of course, they make their own EF-RF adapter so they can't block that. For similar reasons, I would recommend anyone looking at getting the new wave of full frame cine primes and anamorphics in EF mount where possible as it gives the same option of mounting on all the above mount cameras but, crucially, the adapters will purely be physical with no electronics (you don't need that anyway as they are all manual) so can't be shut out by firmware. The broader perspective here is if you picked up something like the 24-105mm f4 L with the 5D MarkII at the start of the "revolution" almost a decade and a half ago, then that lens will have followed you on whatever journey you've been on ever since today no matter if you flipped between cropped MFT, APS-C and now full frame on whatever brand you have chopped and changed to. EF lenses have survived every scorched earth "game changer" flip to a new system that we've all made and is still very much standing. It is very much the cockroach of the lens mounts ! Or, more generously, it is the most forgiving of all lens mounts because no matter which ill advised and ultimately disastrous camera system change you've made it will always be loyally by your side every step of the way. Hang on, it might be a fucking jinx 😉

Only the Komodo is RF, the others have swappable mounts. For instance one of the best mounts for RED is EF, so completely incompatible with RF or mirrorless lenses. That's the Motion Mount with electronic variable ND built in. So what use is RF for RED users who want to use that? You are far better off with either EF or PL lenses for the vast majority of RED's bodies, especially the proper high-end stuff. Komodo is entry level.

Its a little sad to see you guys argue like that, I'd expect that on dpreview forums but not here. There is no absolute when it comes to lenses imo. We all have different goals and preferences. I personally hate zooms, my brain just works better with primes. I'm all about that fixed focal length. That said, I'm not shooting sports/action like gt3rs, where I gather getting the shot is the only thing that counts. And that ties into his perspective of optically better is superior. I get that and his observations are interesting. Again personally, none of that matters. In fact the more CA, vignetting, even softness can equate to lens character. There are also other factors like micro-contrast and 3D pop that I find are often better on primes. Not to the extreme or for every situation though, let's not get silly but case in point being the infamous EF 50mm F1.2. I have to chuckle when gt3rs says its "useless for photo". A good friend of mine uses that lens exclusively for photography and has his work exposed in numerous exhibits.. I'm also a big fan of that lens both for photo & video (we nickname it the Hattori Hanzō). I understand his perspective though, it's no secret the lens is soft wide open and has a bunch of CA. again, for sports/action its probably a terrible lens choice. But for artistic purposes, that dreamy look is key. Same goes I'm sure for Canon's FD "dream" lenses and all kinds of cult vintage lenses. So there you have it really.. zoom vs primes, modern vs vintage lens designs. There is no right/wrong choice, just whatever suits you best. No need to insult one another over their personal preferences. Getting back to the original discussion, thinking about it some more, Canon shutting down third lens manufacturers is going to hurt the system. I guess that means no more Sirui RF too, so no more native anamorphics etc. Bad move for us customers..

It will certainly come down to the sensor and specs. Hopefully it uses the 26MP XH2S stacked sensor. By the way A7IV becomes APS-C in 4K60p, has terrible rolling shutter, no 4K120p and overheating issues. In the end, it probably won't convert FF Sony shooters but rather aimed at S35 FS5/FS7 users like myself that are used to the crop factor and have according lenses like the Sigma 18-35 etc.

Is not a picture is a frame grab at 1/100 from 50fps video...... is normal that is soft as there is motion blur....... it was to demonstrate AF at 2.8 while an animal sprinting at 50+ mph..... This is a picture at 1/1600

1. The video is not "fake." What is wrong with you people? 2. The 8K is indeed from the 50 megapixel sensor, and since 8K requires over 33 megapixels, the 8K is obviously not pixel-binned (but the 4K is). The 8K is from a crop of the sensor because the sensor has more pixels than is required for 8K. 3. The extra pixels, from the above, could be used for the extra room needed for digital stabilization. Given how good the stabilization is, way better than any optical stabilization or sensor stabilization, I can believe there is at least some electronic stabilization. 4. The Samsung has extra, more powerful, stabilization setting; I had interpreted that as adding electronic. I did not use that setting, just the standard stabilization. 5. Samsung only claims its wide lens has optical stabilization. They make no statements that I can find about electronic stabilization, let alone an in-camera gimbal (really?). But I agree, te stabilization is too good to be plain optical. 6. Sony cameras, like the fx3, with gyro do have a setting that uses the gyro along with IBIS and/or OIS while shooting. It is called "Active" stabilization. But in no way can you walk and shoot with these cameras using that setting. You can futher smooth with catalyst Browse in post using the gyro data even when shot using Active stabilization. 7. The Fold4 does not have 4K at frame rates above 60. 8. Whatever the form of stabilization, it has limits. You can hit those with mechanical stabilization (IBIS, OIS) or digital. So showing the limits does not identify stabilization type. Walking briskly with theh camera, as in the video, is a pretty severe test of the stabilization system. 9. If you want to see the video I uploaded from Vimeo do NOT download the "8K UHD" version from Vimeo; download the "original" upload (which is 8K of course). The Vimeo 8K version is compressed by Vimeo and is not what I uploaded (and is much smaller). I may try 4K60 stabilization tests. At 60p the high shutter speeds are less of a problem. 60p is not an option for 8K.