04-26-2018 07:04 PM
04-26-2018 08:04 PM
@Hmarie459wrote:
Hi, I have a Canon Rebel t6i and just bought the rokinon 35mm lens. It’s a manual adjust. When I attached it to the camera and went to apurture priority mode and when I was trying to change the apature, it said no lens detected. I don’t know what I’m doing wrong or if it’s because it’s a manual lens.
It is a manual lens, which mean it does not communicate with the camera’s autofocus and aperture control firmware.
Some cameras have a menu setting that prevents the shutter from firing with no lens attached.
Because a fully manual lens has not communication with the camera body, the camera cannot tell the difference between no lens attached, and a fully manual lens has been attached.
I always use M mode with fully manual lenses. I also dial an aperture value to the aperture setting on the lens, which seems to help the camera to meter the exposure correctly.
04-27-2018 09:28 AM
"It’s a manual adjust."
A lot of folks seem to not understand that this means, you do everything. Try sitting the camera to M mode.
04/16/2024: New firmware updates are available.
RF100-300mm F2.8 L IS USM - Version 1.0.6
RF400mm F2.8 L IS USM - Version 1.0.6
RF600mm F4 L IS USM - Version 1.0.6
RF800mm F5.6 L IS USM - Version 1.0.4
RF1200mm F8 L IS USM - Version 1.0.4
03/26/2024: New firmware updates are available.
EOS 1DX Mark III - Version 1.9.0
12/05/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.3.0
07/31/2023: New firmware updates are available.
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