tokina 10-17 on full frame

Hi all,

I am upgrading my kit for a full frame canon. Should I keep my tokina 10-17 on it or should I better sell it for a 15mm 2.8 fisheye?

I have seen that it seems to work quite well between 15-17mm on full frame, so basically the same angle on full frame than on a crop sensor at 10.

So does the 2.8 capacity of the 15mm (canon or sigma) makes it a really better choice in my case?

Your experience?

Thank you

Have a look at these two threads on using the Tokina 10-17 with a 1.4X teleconverter on FF cameras:

http://wetpixel.com/forums/index.php?showtopic=28656

http://wetpixel.com/forums/index.php?showtopic=28899

Yes thank you for the link, but converter means 1f stop loss and I am not sure it will fit behind my hugyfot fisheye port...

S.o. Have an experience with that?

Not on a FF camera, I use the 10-17 on a 1.4X teleconverter with a 4" dome regularly on my 7D for CFWA work and like the combination a lot. My experience from this that would be applicable to a FF camera is that you will need an extension ring the same length as the teleconverter for your dome, an extended zoom ring to take into account the length of the teleconverter and the autofocus is a little slower in low light conditions and a good focus light is recommended in these conditions.