Canon 580EX II – Diffuser Repair

Flash Bang Wallop!

By Ayrshire wedding photographers Elegant Shot Photography

The dreaded happened – I forgot to lock the 580EXii in place!  With tripod and camera in one hand and large equipment bag in the other, there was nothing I could do but watch in perfect slow motion, as it bounced onto the tiled church floor.   Luckily the only thing damaged was the diffuser panel.

That was two months ago and it’s been bugging me ever since to get it fixed. I seldom used the panel as the light’s too harsh for most situations, so there was no real need to get it replaced, but being a bit of a perfectionist I decided to get it repaired.

I managed to source the diffuser without difficulty but couldn’t get anything other than text info on the disassembly of the unit, so if you’re here because you’ve suffered the same fate, I hope this guide helps you out.

Word of caution:  Remove the batteries.  Even with the batteries removed the capacitor can still give you a nasty shock so it would be safer to discharge it first.  I managed to avoid one but be warned!  Remember that opening the unit will invalidate you warranty and by carrying out any repairs on the unit, you do so at your own risk.

1:  New diffuser panel top right.  Old diffuser panel with broken lug, bottom left and the white catch light card on the right.

Picture of 580ex ii replacement diffuser

Canon 580EX ii replacement diffuser top right with the white catch light and broken diffuser below.  www.ElegantShot.com Photography

2:  Diffuser panel comes complete with hinge

Close up shot of the Canon 580EX ii replacement diffuser

Close up shot of the Canon 580EX ii replacement diffuser

3:  Undo the two small screws from the rear of the unit using a watchmakers screwdriver.

Removing the first screw from Canon 580EX  ii Speedlite

Removing the first screw from Canon 580EX ii Speedlite

4:  Gently lever off the rubber seal using a flat screwdriver.  The seal on either side is held by a tacky glue which was strong enough to reseal on reassembly.  Remove the 6x screws (3x on each side) being careful not to drop them.

Removing the two rubber seals from Canon 580EX ii

Removing the two rubber seals from Canon 580EX ii to reveal 3x small screws

5:  Seals and screws 8x removed

Shot of Canon 580EX ii with the rubber seals and 8x screws removed

Canon 580EX ii with the rubber seals and 8x screws removed   by www.ElegantShot.com Photography

 

6:  Gently prise the two sides apart to reveal the flash tube housing.  Using a small piece of Blu-tack on the end of the screwdriver remove the 2x screws holding the white housing.

Showing one of the two screws holding the flash head

Showing one of the two screws holding the flash head

7:  A small ribbon cable is attached at the rear of the tube housing and care must be taken not exert any pressure.

580EX ii with the flash head cover removed

580EX ii with the flash head cover removed

8:  By moving the tube housing slightly to the side a further 4x screws can be found: see bottom left of the picture below.  When they have been removed the diffuser cover will fall free revealing the diffuser panel holder.

The first of the 4x small screws holding the front cover

The first of the 4x small screws holding the front cover

9:  The hinge can now be removed without any difficulty.

580EX ii old diffuser in place

580EX ii with front cover removed giving access to the broken diffuser hinge

10:  The new panel in place with the spring to the bottom.  The white catch-light card has a small rectangle hole which aligns with the diffuser.  Use a small piece of Blu-tack again to hold the catch-light to the diffuser – making sure to place the Blu-tack near to the rectangle hole so it can be removed easily after full assembly.

Note:  The white catch-light has a slight bevel which matches the casing of the unit and thus should be aligned to match.

580EX ii with the new diffuser installed

580EX ii with the new diffuser installed ready for the catch light

11:  Assembly is a straight forward reversal of the disassemble process, nothing difficult.  Use the good old Blu-tack to stick the screws to the driver, screw them in and the jobs done!

580EX ii with new diffuser in place

580EX ii with new diffuser in place

12:  Load the batteries and test.

580EX ii fully assembled

580EX ii fully assembled – http://www.elegantshot.com Photography

13:  Looking healthy!!

580EXii fully assembled with the repair to the diffuser carried out

580EXii fully assembled with the repair to the diffuser carried out

Hope this helps

 

Elegant Shot Photography

Wedding photographers Ayrshire

 

Comments are closed.