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Click sound of Samyang RF 85mm f/1.4 AF lens when turning R5 on

Started 4 months ago | Questions thread
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Samuel W New Member • Posts: 1
Click sound of Samyang RF 85mm f/1.4 AF lens when turning R5 on

I recently bought a Samyang RF 85mm f/1.4 AF lens in a second-hand website.

It works find on my R5 for both AF & IS.

But I found a strange phenomenon: when turning my R5 power on, the lens will make a "click" sound every time.

After checking the lens, I found this sound is made because the lens aperture bldes open to the largest aperture when the camera is turned on.

I wonder if this is normal because I haven't found the similar sound from any Canon lenses.

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Canon EOS R5 Samyang AF 85mm F1.4 RF / Rokinon AF 85mm F1.4 RF
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