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Pete, Electronic Engineer
Category: Camera and Video
Satisfied Customers: 15767
Experience:  Over 16 years of experience installing and repairing electronics.
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My nikon D300 and D3300 will not autofocuc with a sigma

Customer Question

my nikon D300 and D3300 will not autofocuc with a sigma 18-250-dc hsm lens,why
Submitted: 1 year ago.
Category: Camera and Video
Expert:  Pete replied 1 year ago.

Hi Paul,

You may need to install a firmware update on the lens.

Also, make sure all of the lens contacts are clean.

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