Why is this happening?

[mason buckley]

Im using a fisheye with my fugifilm but when i use flash and my fisheye the bottom is not bright like the rest

012 by mason buckleyy, on Flickr

010 by mason buckleyy, on Flickr

 

[Grant Schofield]

the fisheye is covering the flash.

 

[Bear Grylls]

Lens is blocking the light, only happens when your pointing down i think.

 

[mason buckley]

no it happens no matter what. but thanks

 

[Blake]

Shoot towards a plain wall with your flash and fisheye on. Make sure you shoot it straight on. Post it in this thread so I can see something a little more controlled.

 

[Broccoli1]

As mentioned, your lens is blocking the light from the on Camera Flash.

You need to use and external Flash and one that will cover the angle of view, but most don't cover as wide as a Fisheye so the edges will still tend to go dark.