EOS R6 Mark II Freezes with Rokinon Lens

[Waltnovell]

A few days ago i finally get it ver happy about it!! I test all lense canon mostly but when attached my rokinon sp 85mm 1.2 manual and push the shutter for taking a photo the camera froze on me I got to take the battery to make it work again, in video works great no problem only when i need it for photos, is this normal or my camera is broken? Please advice

[Backwash]

In this case the problem was Canon. FW fixed the problem without even targeting it...meaning....there was a larger issue with the camera making things not work. 

Don't be such a fanboy. Canon doesn't need you to defend them.

[Tronhard]

Yes, so I understand.  I was simply responding to the question posed by Danfaz as a general matter of principle.  The fact that in this case the firmware updated happened to deal with a specific issue is great but the principle holds true.

[bvf]

I understand your comments, but as you say I'm just making suggestions that some people might find helpful.

In fact, the lens I am using - Samyang/Rokinon XP 10mm f/3.5 - presents a particular difficulty. It is quite expensive, and is available only in Canon & Nikon DSLR mounts. So I do not even have the option of spending more money to get an RF version. And there are no other 10mm rectilinear lenses for full frame available. So either I need to use these sub-optimal workarounds or give up on 10mm (or drag my 6D Mk II around with me as well as the R6 Mk II so that I can use the 10mm). My standard operating procedure is to use only 2 apertures - mainly f/8 and occasionally f/3.5 - and so the process of stopping the lens down to f/8 on another camera and then moving the lens to the R6 Mk II works OK for me.

[amukher]

Absolutely. I think that is the problem. Majority of people don't even understand the use of these 3rd party lenses. If Canon was wise enough to make a good astro lenses; we wouldn't need those 3rd party lens. But unfortunately Canon doesn't have a 10MM 4.5 or a 14 MM 1.8 or a 24 MM 1.4 without flying butterfly on the corner. Hence there is not much choice except going for all those 3rd party lenses. Well probably writing out of frustration. Just got a R6 II yesterday and found that 2 of my best astro lenses don't work. They work very well in the R5. Used to work in my old R6 that I sold off. Now I am regrating. I should have not sold the R6. If I knew this issue I would have just hold onto that R6. 🙄

Good suggestion of covering off the electronic connector. That is exactly what I did. I had the old converter that came with the R5. I taped the connection and the lenses are working properly.

Everyone is different; for me that R6 will be for a lot of astro timelapse. So this is the only good solution. The R5 files are just too big for a timelapse and on top the R6 is much brighter at night to focus properly (manually) on stars. And the Samyang lenses have fixed infinity. So it is much easier to focus than other auto focus lenses that go a bit beyond infinity. Hope the thin tape will hold onto it for longer period of time!