The dumbest FF fisheye combo yet

I have in my possession:

A Tokina 10-17

A Metabones V

A Sony 2.0TC

Zen DP100 Tokina version, and

30mm extension.

I knew from previous experiments that the Tokina covers the Sony FF sensor from ~15mm and tighter. So I had to try the TC under the theory that will expand the image circle.

IT WORKS! The camera shows 19-34mm in Advance mode and the sensor is covered through the zoom range. Looks roughly 150 degrees or so on the wide end. Focuses on the glass if you're patient.

I have no fancy charts to check IQ, it's likely poor but so is our visibility.

AF on my A7Riii is not great but not dramatically worse than the bare lens. Hunts like crazy in AF-C but that's the same as no TC.

Would I purposely buy this combo? Definitely not, it's temporary while I decide on a FF zoom fisheye.

Does it seem perfectly functional? Absolutely!

I other news the Canon 60 EF-S also covers FF with the TC.

Edited 2 hours ago2 hr by Grantmac