What 15mm at f/2 actually gives you
15mm is wide enough to take in interiors, landscapes and architecture without the pronounced edge stretching of an ultra-wide.
f/2 is fast enough to keep shutter speeds up in poor light and to separate a subject from its background clearly.
Size, close focus and filters
At 395g (13.9 oz) it sits in the middle for handling: substantial enough to feel planted, light enough not to dominate the kit.
It focuses to 15cm, which is close enough to fill the frame with small subjects.
Filters are 72mm — worth checking against what you already own, since polarisers and ND filters at this size are reusable across any other lens sharing the thread.
Manual focus and stabilisation
Focus is manual only. That suits deliberate work — landscapes, macro, video pulls — and rules it out for anything that moves unpredictably.
There is no optical stabilisation in the lens, so handheld steadiness depends on the body having IBIS, or on keeping the shutter speed up.
