You asked

Is the sony sonnar t e 24mm f 1 8 za worth it?

It's worth it if you want a small, fast prime on a Sony APS-C body. On APS-C it frames like a 36mm on full frame, a comfortable everyday view for street, travel and casual portraits. At f/1.8 it blurs backgrounds about as much as f/2.7 would on full frame, and it gathers far more light than a kit zoom. It isn't stabilised, so keep your shutter speed up in dim rooms.

Good matches from the cameras it fits:

For the framing maths, see Focal length converter, and for whether a bigger sensor is worth the weight, see Sensor sizes.

Written by Claude from this site's pages.

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