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

[jpbananaman]

UPDATE: Firmware 1.1.1 fixes this! My camera boots faster and without issue now. 

Same exact issue over here; New R6 Mark II on the latest firmware (1.0.0) and my Samyang AF 85mm 1.4 RF on latest firmware (v3) is being finicky with the camera.

I do have a workaround!

It's not ideal, but if you start the camera without the lens attached (or partially) and then lock the lens into place it will work as if nothing's wrong. For some reason the camera just can't initialize with the lens attached and it freezes on a black screen until you remove the battery.

Canon shut down 3rd party lens manufacturers for the RF mount and Samyang/Rokinon have discontinued their line of RF lenses so I wouldn't hold your breath for a firmware update. Best to sell it now while it holds value or just settle for the current workaround and hope Samyang have it in their hearts to continue to support the lens. I might send an email just to see what they say.

Happy shooting

[Peter]

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@Backwash wrote:

Even worse problem.

Brand new R6 MkII.... connected Rokinon RF 14mm AF. Canon didn't even turn on. Had to remove battery and change to Canon lens. Camera turned on....but would take 5 seconds to turn on instead of near instant as it did prior to connecting the Rokinon lens. Had to Reset Camera to bring the speed back to where it was. So....the Camera got seriously messed up in software by simply connecting the Rokinon lens.

What the?

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That has been reported by other users too using Canon lenses. Solution that time was to turn off Bluetooth.

[stuart19999]

Just to add to this thread... 

I have a Canon R6 Mk2. I've fitted the samyang 14mm EF lens to the canon RF/EF adapter. The camera does register and displays an image but the shutter button won't snap a photo (just does nothing when pressed). 

Very annoying!  

[Danfaz]

I could be wrong, but isn't it the third party lens manufacturer's job to make sure their lens works with a camera? They have their docks to upgrade the firmware when a new camera comes out. 

Why are we expecting Canon to make this work?

[stuart19999]

That's a fair point. Frustrating none the less. The lens previously worked. For example, it works like a dream on my old 200D. Seems a shame to make a brilliant lens redundant when no doubt a firmware update could fix it. 

The lens I have is a manual focus type, which I believe isn't compatible with a dock (according to the lens manufacturers website). This basically means unless canon fix the issue then the lens is redundant to me. 

Pity. 

[Waddizzle]

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@stuart19999 wrote:

That's a fair point. Frustrating none the less. The lens previously worked. For example, it works like a dream on my old 200D. Seems a shame to make a brilliant lens redundant when no doubt a firmware update could fix it. 

The lens I have is a manual focus type, which I believe isn't compatible with a dock (according to the lens manufacturers website). This basically means unless canon fix the issue then the lens is redundant to me. 

Pity. 

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Canon won’t “fix” it.  Nothing is broken.  It is not Canon’s responsibility to fix their firmware so that the camera works with every piece of third party gear out there.

Realize that you are complaining about a lens made for an EF mount camera body not body working on an RF mount camera body.  I’m certain if the RF mount even existed when that lens was designed and first released.

[bvf]

Same problem with the Samyang 10mm XP on an R6 Mk II. Here are a couple of partial solutions that might help (at least if the lens has auto-aperture control but not auto-focus - I don't know if these work with an autofocus lens):

1) Put some tape over the contacts on the lens. You need to cover the two contacts (one short, one long) slightly separated from the other contacts. This will let you use the lens at full aperture - but you cannot stop it down.

2) Get one of the dumber 3rd-party EF to EOS-R adapters that does not provide electrical contacts between lens and camera.  This will let you use the lens at full aperture - but you cannot stop it down.

3) If you are using method (2), then if you put the lens on a camera where it does work, press the aperture pre-view button and remove the lens while pressing the button, then the lens aperture remains at the setting the camera applied. If you then fit the lens to the R-series camera with the dumber adapter you can view/shoot at that aperture. But of course you can't view/focus at full aperture.

[bvf]

Actually, you could probably combine (3) with (1) - but you'd have to apply the tape after you've closed the aperture on the "good" camera.

Irritatingly (sort of), the lens works fine on an M5 using a 3rd-party EF to EF-M adapter, and on a Sony A6000 using a 3rd-party EF to E-mount adpter.

[shadowsports]

Greetings,I

I think it's important to mention that tape and expensive camera's do not mix well.

1) Put some tape over the contacts on the lens. You need to cover the two contacts (one short, one long) slightly separated from the other contacts. This will let you use the lens at full aperture - but you cannot stop it down.

Tape of any kind on a lens or body's contacts.  I don't recommend this.  

2) Get one of the dumber 3rd-party EF to EOS-R adapters that does not provide electrical contacts between lens and camera.  This will let you use the lens at full aperture - but you cannot stop it down.

This is the second time you've said "but you cannot stop it down" - My advice again don't do it.

3) If you are using method (2), then if you put the lens on a camera where it does work, press the aperture pre-view button and remove the lens while pressing the button, then the lens aperture remains at the setting the camera applied. If you then fit the lens to the R-series camera with the dumber adapter you can view/shoot at that aperture. But of course you can't view/focus at full aperture.

A multi-camera set up to put a seemingly incompatible lens into some type of useable shooting mode on another camera?  For one shot?  No again.  

I know these comments were made with the intention of being helpful, but some of them could or might put your gear at risk.  Add additional one use expense, or result in some sort of unexpected behavior.  I believe any of these might be asking for trouble or frustration.  Just my opinion.  YMMV.  

To date, the R62 and R7 are 2 of the more finicky body's when it comes to 3rd party lenses.  

Cheers 😀

[Tronhard]

We should not be expecting Canon to make their camera work with 3rd party lenses.  The onus is on the lens maker.