Canon Speedlite 420EX TTL Flash Logo

Related Topics:

Question about Canon Speedlite 420EX TTL Flash

1 Answer

Speedlite 420EX lost a plastic part

I have a Canon Speedlite 420EX. In the front LOWER part there was a piece of plastic protecting two small lenses. I have lost that plastic protection. Can I buy it separatly and replace it myself? If yes Where? What would be teh part number? Otherwise what must I do? Thank you for your help, dbessis

Posted by Daniel Bessis on

  • blogmeister Dec 21, 2007

    I have the same problem.


1 Answer


  • Level 1:

    An expert who has achieved level 1.


    An expert that gotĀ 5 achievements.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.

  • Contributor
  • 20 Answers

Part number: CY2-1130-000 PANEL, AF LED 
Check you local for spar part suppliers

Posted on Nov 28, 2008


Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


Flash speedlite 420 ex not works well with canon 7d

What are the issues your having? Without an idea of what the photos look like and what settings you are using there's not much help we can offer.

How to Disassemble 420EX Flash

I wrote up on instructables how to disassemble this flash for anyone needing a guide.

Pilot light not lighting on 420ex speedlite canon flash

This may seem dumb to ask but have you made sure all batteries are fresh (even new ones can be bad), they\'re inserted correctly observing polarity and the contacts are clean in the flash? (You can clean them using a clean, dry pencil eraser and a Q-Tip dipped lightly in alcohol.)

Also, try mounting the flash on your camera, turn both on and reset your camera to factory default settings through your camera menu settings.

Canon 420ex makes brief buzz noise but no lights

The buzz noise may be the zoom motor in the flash activating as it starts up. If it encounters resistance it will shut down to protect the motor and flash. It's impossible to tell if something has jammed the zoom motor or path without opening the flash (I suggest you don't). If mounting the flash on your camera, turning both on and resetting your camera to factory default settings through your camera menu settings doesn't reset it you'll probably need to send it in for repair.

I need the Canon Speedlite 420ex manual.

You can download a manual from

Canon flash speedlite 550 ex ttl

Send the flash back to canon for Service this is not something that can be fixed in this forum. Do not use the flash the burning smell indicated a potentially dangerous problem and fire hazard.

Broke foot of Canon Speedlite 420EX TTL Flash

Part # CY2-4165, order from Canon. Four screws and a plug in cable and that is it.
Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top Canon Cameras Experts

old marine
old marine

Level 3 Expert

2420 Answers


Level 3 Expert

490 Answers

john h

Level 3 Expert

29056 Answers

Are you a Canon Camera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides