Focal Lengths: What I Actually Reach For

Lens choice is one of those decisions that sounds technical but is really about how you want to see. Over time you develop instincts about which arguments you want to make. I shoot APS-C, so all the focal lengths below carry a 1.52x crop factor. The full-frame equivalents are what most people will recognise.

24mm (moderate wide angle) This is a working focal length - wide enough to place a subject in their environment, close enough to stay emotionally connected. The slight barrel distortion at the edges isn't a flaw; it gives the frame a sense of depth that flatter lenses lack. Spielberg's favourite lens is 21mm, and once you know that you start seeing it everywhere in his work - the way a character can be close and far at once, present in both their body and their surroundings.

40–50mm (portrait close-up) Often cited as the focal length closest to human vision, which may be why it's both the most natural and the most difficult to make interesting. Wide enough for context, tight enough for faces. Where it excels is in capturing expressions without flattening them - there's a naturalism to the rendering that longer lenses can't quite replicate. On APS-C I use the Sirui 24mm T1.2 for video (36mm equivalent, close enough) and the Fujinon 35mm f/2 for stills (50mm equivalent). The Fujinon in particular is a lens I keep coming back to - fast, compact, optically honest.

60mm (tight close-up) An odd focal length that doesn't get discussed much. Tighter than a nifty fifty, without the compression of an 85mm - it sits in a gap that's genuinely useful when you need separation but can't physically step back far enough for a longer lens. In tight locations, this is often the focal length that solves the problem. I use the Sirui 35mm T1.2 here (55mm equivalent) when I need cinematic rendering with good sharpness wide open.

85mm (telephoto portrait) The wedding lens, the pieces-to-camera lens, the lens that makes faces look the way faces want to look. The compression flatters features; the bokeh is generous; the rendering is soft in a way that feels considered rather than accidental. The practical downside is distance - you need room. But when you have it, nothing frames a face quite like an 85mm. On APS-C I use the Viltrox 56mm f/1.4 (85mm equivalent), which is one of the better-value portrait lenses available for the system.

The honest answer to "which focal length?" is always: it depends what you're trying to say. But these four cover most of what I want to say, most of the time.