Barmaglot Posted February 12 Share Posted February 12 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. 1 Link to comment Share on other sites More sharing options...
Architeuthis Posted February 12 Share Posted February 12 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 Link to comment Share on other sites More sharing options...
Alex_Mustard Posted February 12 Share Posted February 12 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. 1 Link to comment Share on other sites More sharing options...
Alex_Mustard Posted February 12 Share Posted February 12 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. Link to comment Share on other sites More sharing options...
Guest Posted February 12 Share Posted February 12 F/16 smaller aperture is possible Link to comment Share on other sites More sharing options...
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