yeah, i think this got a bit Off-Topic, but my point was not to start some kind of Nikon vs Canon War here or anything like that, rather about the Fact that its not really good to get stuck with a ton of lenses that highly rely on proprietary undisclosed electronic Interfaces for general use or especially for cross-System use like with the Chronos or Similar Cameras, that for some Reason need an Purely Mechanical Interface. If you like Mirrorless or something, thats fine for me, do what you want and have fun with you camera, there is Plenty great Camera Systems and Lenses Out there, New, Old, Vintage, DSLR, Mirrorless, whatever you like. I own like at least 9 to 12 Pure Mirrorless Lenses, of which not a single one even has an actual Focus Ring (would need to count them) and am (as you can maybe tell from my username and Profile Picture) a huge Fan of Nikons 1" Mirrorless System. So i am certainly not against Mirrorless or new Camera Tech in general or anything.
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As i said, if you got any newer Camera System, there is not much of a way around those Lenses that lack full on-Lens-Controls.
There is also no point in even trying to argue that new lenses wouldnt be (at least Potentially) better (ofc. not all of them, they still make some cheap crap for the Masses that dont care much today, like they did ever before). Not only that today there are plenty new Glass Substrates available, which where not back then, also things Like Aspheric Lenses, way better Coatings and better ways to design Lenses overall and a bunch of other things, we today can just build way more sophisticated optics than ever before in History.
Still, there are some Great Old, High end Lenses available for cheap. And the real high end Lenses, where all that New Technology starts to really shine, is just very expensive.
And some of these Grand Old Lenses still outperform quite a bit of the low end of new Lenses Made. Depends a lot also on what you are out for, Contrast is not always the Strongest Skill of those old Lenses amongst other things. My set of age old cheap Russian Contax-Mount Lenses still are Sharper than i can even Capture on an A7R3...
Only Sad thing is, that most of the New Lens designs are, as i said only meant for a Digital interface.
Mounting a Lens generally isnt that hard. Thats Somewhat low-Tech, you can do that with a bunch of Cardboard and some Hot-Glue, if you needed to (been there, done that...), and it will work, as long as the Lens allows you to access all its Settings somehow, which the New Mirrorless One will not (at least not without some high level efforts and a bunch of very specialized equipment, and some Dedication to Reverse Engineering Something. It clearly IS possible, and has been done before, f.Example see
https://gfotostore.ru/?hash=page/nikon1 ).
Mounting it well and repeatable / Reliable on an Interchangeable Mount is an other story, but even that is still easier than Building some kind of Digital interface to communicate with a lens, if you could as well just put an Focus-Ring and Aperture Ring on there in the First Place, thats What i am Saying.
This sadly is not always easy, and i realize that (with need for Crazy Fast Autofocus and Iris-Movements), and there is some really good lenses, with high end new designs and Full Manual Controls, but those are usually Cine-Type Lenses and cost a fortune.
However, those for sure will last you a while if you can afford them.
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Regards RF-Mount on the Chronos, i looked into it, and the Flange Distance seems to be reasonable, to where such a Adapter would actually be Possible and Practical from an Mechanical Standpoint, but i dont think there is too much gained from such an Adapter (unless you are an RF-User already and own a bunch of good lenses). For one, most lenses would probably be Mainly digitally controlled i assume (not an canon guy myself, and especially not Mirrorless Canon, so i have really no clue what kind of lenses they or other Companies even offer for that Mount apart from the obvious ones..?), and then you also got the Sensor Format Mismatch.
I dont think Canon would just give the Information about their RF-Mount Communication Protocol to Krontech or anyone really, at least not without them Paying some unreasonable amount of Money for that, and if they just went to figure it out on their own, apart from all the work that would cause, Canon would probably give them Serious Legal Trouble if they did end up offering anything like that in an Commercial Product anywhere.
The Format Mismatch is the Other Big issue with Canon RF. While there certainly are still Wider Lenses available than for lets say DSLR Mount Full Frame Mounts, APS-C /35mm is still a way larger Format than the 4/3" Sensor of the 2.1, and you would just end up wasting most of the Image Circle on the Lenses and not getting the Most out of it, also the Crop.
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If any Digital Lens Interface would make Sense on the Chronos IMHO, it would be MFT. Sensor Size Would Match perfectly, meaning, Lenses for that Mount will perform at their best on the 2.1, and the Widest Possible Lenses will be Available. MFT Communication Protocol also seems way more Approachable than trying to talk Canon into disclosing their Protocol for Free/ Cheap (good luck with that).
Way Faster, Wider and Overall Smaller Lenses Are available for the Chronos, and about anything that comes with an MFT Mount should be sharp enough for the 2.1 i assume.
Also Speedboosters.
