Fix UWL-28M52 or iDas UWL-04 fisheye lens for RX100 I/II?

[ggibson]

I was looking at both the Fix UWL-28M52 or iDas UWL-04 for my RX100ii setup. They look very similar, and even possibly made by the same manufacturer? Looks like the UWL-28M52 is slightly smaller. Is there a preference for either? Or are they basically the same? Looks like both of these can be weak in the corners below f8, but I'm on a budget, so the Inon H100 is out of my price range at the moment. I'm using the Aquapazza housing if that makes a difference. Thanks!

 

[Interceptor121]

UWL-04 preferred it is bigger and you can try and use it for splits. This lens was previously supplied by fix