focuspulling wrote:
There's truth IN what you're saying, but of course it's splitting hairs. As you also know very well, there are numerous forum threads here about numerous MFT and EF mount lenses having flaws when mounted onto Blackmagic Cinema Cameras.
EF and MFT lenses have problems for sure. The difference is that with MFT, BMD are officially in the consortium. Any issues that arise are purely inadvertent, not strategic. No one is trying to make a non conforming MFT piece of equipment as there's an official agreement to co-operate.
EF is a sunset standard. BMD only made an EF camera AFTER the protections had expired. The protocol is also much easier to hack. Remember that EF (and likely E mount) are all reverse engineered hacks. There are still problematic lenses like the 50mm F1 and the 100mm Macro. The protocol was developed in 1987 and even though it's simple, issues do still come up, but because it's so well understood and simple they can usually be dealt with.
Sony E is protected Sony. You haven't given a single example of where they have sanctioned a camera that uses their protocols. So my original point stands.
Anyone who makes a product while the protocol is protected is therefore risking either a change or alteration in the future rendering their equipment non-functional.
Sony are also within their rights to legally pursue those that breach that protocol.
That's the point. MFT is genuinely native and official. EF is out of protection and is now kind of open-source. This is why Canon go after those trying to make the same kinds of adaptors for RF but don't bother with EF.
E mount is not anything like that.
So you may say you'd support an BMD unofficial E mount camera, but what if that suddenly stopped working on all lenses sold after today or any lenses that have had their firmware updated?
BMD would not want to risk any legal jeopardy either so it's just not going to happen no matter how much you wish it to be, or think it's possible to do.
JB