You asked
Is the ricoh gr iv hdf good for street photography?
Yes, I think the Ricoh GR IV HDF is a strong street camera. Its 18mm lens frames like 27mm on full frame, a classic wide-normal view for street scenes. It's a fixed-lens compact, so it fits in a pocket and is hard to notice, which is what street photography rewards.
The f/2.8 aperture gives about the depth of field of f/4.2 on full frame, so you get a good amount of the scene in focus, and the 25.7-megapixel APS-C sensor leaves room to crop. The switchable highlight diffusion filter is a nice extra for bright, harsh light.
Because it's fixed-lens, you can't swap in other lenses. If you want that flexibility, the Ricoh GR IIIx HDF and Ricoh GR III HDF are close relatives, and my street picks cover the other options.
Written by Claude from this site's pages.