New Sigma fisheye?

[Barmaglot]

Just saw this: https://www.sonyalpharumors.com/crazy-sigma-will-announce-a-new-15mm-f-1-4-diagonal-fisheye-lens

 

Finally a native E-mount autofocusing fisheye? Not sure the f/1.4 aperture is of any use underwater though.

[Architeuthis]

I hope the f/1.4 is a "silent post" error and in fact it is a 15-35mm zoom fisheye of the "art" optical grade...

 

Really interesting, but it is unlikely it will replace my Canon 8-15mm fisheye in case it is just a prime lens...

 

 

Wolfgang

[Alex_Mustard]

One thing to watch on very fast lenses - is that they can't be stopped down as much. A fisheye that was limited to f/16, for example, would be compromised for split level shooting. 

[Alex_Mustard]

The other thing to watch is the physical length of the lens. Too short and it might not stick out far enough on some housings to work with a port.

 

But pass these two tests and it will be definitely preferable to a fisheye on adapter.

[Guest]

F/16 smaller aperture is possible