You asked
Is the zeiss touit 32mm f 1 8 sharp wide open?
I don't have sharpness test results for the Zeiss Touit 32mm f/1.8, so I can't say how crisp it is at f/1.8. What I can tell you is that it's a prime for APS-C cameras, works with Sony E and Fujifilm X mounts, has autofocus, and isn't stabilised. On APS-C it frames like a 48mm lens on full frame, and f/1.8 gives about the depth of field of f/2.7 there. You can read the full Zeiss Touit 32mm f/1.8 page for the camera list.
For what a wide aperture does to your pictures, including the trade-off with background blur, see the lens aperture guide. If sharpness wide open matters to you, look for independent test images from reviewers before you buy.
Written by Claude from this site's pages.