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black circle on eos r6 mark ii with mount adapter r and a 24-105mm 4.0l lens

digitaljock
Contributor

IMG_3345.jpgHi - just bought the r6 mark ii and got a mount adapter to work with my existing canon lenses. It works fine on my 70-200 but when I put on my 24-105MM it creates a black circle between 24-70mm but is fine from 70-105mm. Is this normal? Bummed... thank you

1 ACCEPTED SOLUTION

Waddizzle
Legend
Legend

What type of lens hood are you using, if any?

--------------------------------------------------------
"The right mouse button is your friend."

View solution in original post

8 REPLIES 8

shadowsports
Legend
Legend

Greetings,

Which mount adapter did you get?  

Am I correct to assume it wasn't the Canon adapter or Control ring adapter?

~Rick
Bay Area - CA


~R5 C (1.0.7.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It

Hi - it is a canon mount adapter eos r 

shadowsports
Legend
Legend

Greetings,

I suspect this is related to a setting.

Can you please reset the cameras main and custom settings to default and retest.  

~Rick
Bay Area - CA


~R5 C (1.0.7.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It

I just reset the basic settings and each of the custom settings though don’t believe I have changed anything yet as it’s brand new and still having the problem

p4pictures
Whiz
Whiz

Does the size of the black circle change depending on the zoom position. So it’s covering more of the image at 24mm and almost nothing at 60mm? 

if so it could be that the aperture assembly is sticking in the lens. With the lens on the camera and set to 24mm lens ok through from the front and see if the aperture looks closed. It should open when the power is on. 


Brian
EOS specialist trainer, photographer and author
-- Note: my spell checker is set for EN-GB, not EN-US --

The black circle covers much more of the frame at 24 and nothing by the time it gets to 70 scaling down between the

Here is what the lens looks like detached from the camera at 24 and 105. (24 is first image )

IMG_3354.jpeg

IMG_3353.jpeg

Waddizzle
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Legend

What type of lens hood are you using, if any?

--------------------------------------------------------
"The right mouse button is your friend."

digitaljock
Contributor

Oh wow - I feel stupid but happy. Thank you ! I was using with hood that came with my 24-70 2.8l which apparently is different than the one that comes with 24-105 4l. I hadn’t realized that as I recently broke my 24-70 and 6d and bought the r6 as a replacement and am using my dads 24-105

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