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I recently purchased an Extender EF 2X III for use with my…

Customer Question
I recently purchased an...

I recently purchased an Extender EF 2X III for use with my new EOS 80D. I have a telescope complete with the appropriate adapter for the 80D and have taken good pictures in that configuration. I added the extender between the 80D and the adaptor and get a message on the camera that electrical connections are bad and must be cleaned. So the camera works fine without the extender but not with it. What is happening and how do I fix it?

Technician's Assistant: How old is your EOS?

2 months

Technician's Assistant: What have you tried so far with your EOS?

I have a couple of other Canon lenses and they work fine

Technician's Assistant: Anything else you want the Camera Expert to know before I connect you?

I do not have a compatible Canon lens to test with the extender

Submitted: 2 months ago.Category: Consumer Electronics
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Answered in 1 day by:
12/13/2017
Electronics Technician: Harry, Customer Service replied 2 months ago
Harry
Harry, Customer Service
Category: Consumer Electronics
Satisfied Customers: 1,000
Experience: IT at Justanswer
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Hello:

Welcome to JustAnswer! My name is ***** ***** I am happy to be assisting you today. My sincerest apologies that it look so long for someone to reply, we're a bit behind with the holidays coming upon us. Before we begin, can you please let me know if you still need help with your question? Just use the reply box to let me know.

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Customer reply replied 2 months ago
the extender is still giving errors to the camera
Customer reply replied 2 months ago
With no lens mounted on the camera body, the camera will still operate and try to take a picture.
Electronics Technician: Harry, Customer Service replied 2 months ago

I do not show that the EOS 80D is a compatible camera with that extender.

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Customer reply replied 2 months ago
The Canon specs on the extender refer to it as an EF lens. The 80D according to my manual is "compatible with all Canon EF and EF-S lenses" It cannot be used with an EF-M lens. Is one of these specs wrong?
Electronics Technician: Harry, Customer Service replied 2 months ago

Listed with the Extender EF 2X III specs are the compatible cameras and the 80D was not one of them.

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Customer reply replied 2 months ago
The specs I found on the Canon website lists only compatible lenses and does not exclude camera bodies. Where did you find the spec you quoted?
Electronics Technician: Harry, Customer Service replied 2 months ago
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Customer reply replied 2 months ago
OK
Electronics Technician: Harry, Customer Service replied 2 months ago

Thank you

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