It'd be easy to classify the 'probe' lens as a niche device, or even a novelty, but this isn't stopping the likes of Laowa and now Astrhori from releasing a steady stream of different probe lens models. As recently as November 2023 Astrhori gave us the 28mm F13 2X Macro Periprobe: a full-frame probe lens with a front element angled through 90 degrees, enabling the lens to 'see round corners'. Now the manufacturer has released an APS-C version of this lens: the 18mm F8 2X Periprobe.
