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Camera Pop-up Flash Mirror-style Diffuser

by thingster, published

Camera Pop-up Flash Mirror-style Diffuser by thingster Dec 27, 2012

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This thing is a mirror-style diffuser for your on-camera flash. It turns the harsh light of the on-camera flash into a external-like flashgun for nice looking illuminations with soft shadows.


Note: Unfortunately not tested yet as my 3d printer is broken at the moment. ;-/ It should work for most cameras, but was originally designed to sit on a Nikon D3100/D3200. If it doesn't work for you just grab the design and improve it to fit your camera.


  • Print in white plastics. PLA is recommended for better preserving the dimensions of the object.
  • Optional, but strongly recommended: Take a piece of aluminum foil, cut it into a rectangular (about 60 x 50 mm) and glue it into the space of the big slanted face at the top of the object. This will give it a kind of 'mirror' that bounces the light much better than only white plastics.
  • Open your on-camera flash and put the diffuser onto the hotshoe.
  • Take photos!

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I printed as is on my Replicator 2, but I made sure to use a raft to help prevent it from falling over. It printed perfectly.

Does it work for Niken d5100? Made un black material and adding a mirror on the square side? Thanks!

Looks to me like they pyramid-shaped part at the bottom middle is a support for the flash shoe mount. As such, yes, the flat panel will end up in front of the pop-up flash, and reflect light upwards and forwards. Printing with white PLA/ABS, or applying a neutral white material to the mirror portion would be wise. Applying a reflective material (metallicized mylar, aluminum tape, etc) would maximize light transmission, but might make the reflected light somewhat patchy, if that matters. If the part were printed with translucent material, it might diffuse some light downwards for macro subjects, but that doesn't seem to be the intent of the design.

I printed but in the original position, you spend a lot of plastic to support the slanted face and then it got broken when trying to detach. If you re-design it, put face horizontal for minimun plastic and stronger braces.

Very nice, I was thinking of the same thing.

Hi! That looks interesting. But actually I still have no clue in what way I should attach this to my camera (though haven't printed it yet). Should the camera Flash bounce the light off the big face to the ceiling? Also: What is your opinion on printing this part? Do you suggest to print as is, or should I rotate it in order to get a good result?