EF-s prime lenses?

[Rat]

A couple from the Sigma 15mm Rect Fish

The palace shot is something else, very nice* - but a 'rect fish'? I'd think a WA is either rectilinear OR a fish-eye, but not both What did you mean?

*) No, the Laguna Seca one has reflections. I don't like those. Grab a rubber lens hood from ebay, put it flush against the window, and presto - gone are your reflections!

 

[RAKAMRAK]

sub]*) No, the Laguna Seca one has reflections. I don't like those. Grab a rubber lens hood from ebay, put it flush against the window, and presto - gone are your reflections![/sub]

Hey Thanks @Rat, good to know this technique...

 

[Pi]

Buy a 35L and put some gaff on it with a label calling it an EF-s 56mmL, it will work beautifully.

It will work. Beautifully? Not really. It will be soft wide open, with noticeable LoCA. The reason is that it is designed for FF, as a WA lens. It needs to cover a larger circle, with decent performance near the edges. When you remove those constraints, the design could be more "normal" but still affected by the relative large flange distance. The lens would lose some weight, as well.