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GEAR FOR SALE

Post classified ads for your camera gear and filmmaking related kit!

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  1. WTB moondog anamorphic 37mm

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  2. FS: Panasonic Lumix GH5s

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    • Thanks. They're just jpegs off the SL as I only used the lens for about an hour after I got it before resuming holiday mode so today has been the first chance I've had to look at what I did with it so I was just pushing them to make a LUT with for when I do some video with it. I want to use it on the Pocket4K (or my newly acquired Micro  ) but I don't know whether its just me but I don't seem to be getting much joy with M mount lenses on MFT. I picked up a dirt cheap A7Rii a few days previously to use with the TechArt to have a poor man's AF high res Leica M but only got chance to have this quick go with the 7Artisans 50mm f1.1, which I love on the SL, but the jury is out with it on the Sony although, again, I'm just pushing jpegs about so need to have closer look when I get more time.  
    • If any6ne was looking for a €150 GH2 - here
    • Love the mood. Are those stills or video frames?
    • I know the Chinese companies don't bother, because there are no consequences for them. IP protection in China is very lax. That is the problem a lot of high tech companies have with that country. If Sony holds a method patent for communication between a lens and a camera (any lens and any camera, as long as it uses that protocol), any sort of reverse engineering involving that protocol is an infringement. Any court in a jurisdiction that enforces patent rights would rule it as an infringement if a complaint is made. Metabones operates out of first world countries and obviously have obtained a license. Otherwise they would not be able to do what they do. They would be shut down if they did not. Camera companies will do this to increase the lens ecosystem for their cameras, so you will see limited licenses being issued in some cases. They will be a lot more reluctant to increase the lens ecosystem for their competitors cameras however, or allow random manufacturers with unknown quality control access to their systems electronics.  Canon EF is an old protocol dating back to 1987, any patents that were protecting it that would have long expired by now, which is why everyone uses it. That would not be the case with E-mounts, or any of the new mirrorless lens systems. Anyone who wants to make lenses based on them will require a licence from the camera manufacturer. This is why you will often find manual lenses for various mounts from low end lens manufacturers - they don't have licences, but they can still make the bayonet mount, just as long as it does not use the communication protocol. They could of course just ignore the patents (as these guys appear to be doing), especially if they are based in a jurisdiction that does not enforce IP ownership.
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