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Canon Camera Error Codes & Messages - [Complete Explanation & Fixes]
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Error 01 , communication between camera and lens faulty. Clean lens contact” | DIGITAL CANON repair blog
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Old Sigma 18mm lens causes Err 01 on Canon DSLR - Photography Stack Exchange
error code 1: Canon EOS R Talk Forum: Digital Photography Review
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Any idea how to fix this? It's happening with my sigma 75-300mm lenses I haven't used it in over a year. I've cleaned it with a normal cloth by nothing is helping? :
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Canon EOS M Camera Lens Err 01 Problem with a Sigma EF Mount Lens - 8Bit Mammoth
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