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One focal length, and usually the widest aperture the money buys

The best prime lenses for 2026

A prime does not zoom, and everything it gives back follows from that constraint. Designing for one focal length allows a wider maximum aperture at a given size and price than any zoom manages, which is why this is the shelf people arrive at when a room is too dark or a background needs to fall away. That aperture is a single figure rather than a pair, and it does not change as anything extends. The blade count and whether the blades are rounded describe how out-of-focus highlights are rendered and how many points a star pattern shows around a bright light — a property makers publish and rarely explain. Autofocus motor type is stated and decides whether the lens is quiet enough to sit near a microphone. Minimum focus distance varies more here than on zooms, and a prime that focuses close is a different lens in practice from one that does not. Because the barrel usually does not extend, the filter thread is often small and the lens often light — a combination that makes these the lenses people actually carry. Then sealing, the presence of an aperture ring on mirrorless designs, and the published weight and length. We compare focal length and format, maximum aperture, blade count and shape, autofocus motor, minimum focus, filter thread, sealing and weight.

The bodies and lenses we compare here

  1. TTARTISAN AF 50mm F1.8 Neo E, 156 g, no focus ring

    Sony E mount · full frame · 50mm · F1.8 · STM drive with eye and subject autofocus · no focus ring fitted · minimum focus 0.48 m · 156 g · glass-fibre reinforced body · 45 degree angle of view · no blade count published · no filter thread published · no sealing claimed

    The cheapest lens of the eight here at 99 €, weighing 156 g, focusing by motor only — the fourth bullet states there is no focus ring at all, which is a design decision rather than an omission.

    Best for: A first prime on a full-frame E-mount body, for someone who wants the camera to do the focusing and the lens to weigh nothing.

    ≈ £89 / 99 €

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  2. Nikon AF-S NIKKOR 50mm f/1.8G, 58mm thread

    Nikon F mount · FX format, framing as 75mm on a DX body · 50mm · f/1.8 · Silent Wave Motor · two focus modes, autofocus and manual · aspherical element · 58mm filter thread · no blade count published · no minimum focus published · no sealing claimed · no weight published

    The classic normal prime on the F mount at 219 €, publishing a 58mm thread, a Silent Wave Motor and its DX framing — on a page that prints the same five bullets twice over.

    Best for: A normal prime on an FX body, or a short portrait lens on a DX one, where a motor in the lens and a cheap thread matter as much as the glass.

    ≈ $252 / 194 €

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  3. Canon RF 45mm F1.2 STM, under 400 g

    RF mount · 45mm · F1.2 · STM motor · configurable control ring · stated as weighing less than 400 g, which is a ceiling rather than a measurement · no blade count published · no minimum focus published · no filter thread published · no sealing claimed

    The widest aperture in this entire lot at F1.2 for 439 €, in a barrel the page says weighs less than 400 g — a ceiling rather than a figure — with no blade count, no thread and no close-focus distance published.

    Best for: Street portraits on an EOS R body where F1.2 is the entire point, and the control ring replaces the settings a spare hand would otherwise reach for.

    ≈ £405 / 439 €

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  4. Samyang AF 75mm F1.8 FE, 230 g, 9 blades

    Sony E mount · full frame, and APS-C · 75mm · F1.8, closing to F22 · 9 aperture blades · LSTM autofocus, under 0.2 seconds and 23 dB · minimum focus 69 cm · 58mm filter thread · 230 g · 69mm long · 10 elements in 9 groups, 3 ED and 2 HR · angles of view 32.9 degrees on full frame and 21.9 on APS-C · no sealing claimed

    Eight of the nine lines this shelf compares, answered with figures: 230 g, nine blades, 58mm of thread, 69 cm of close focus, and an autofocus timed at under 0.2 seconds and measured at 23 decibels.

    Best for: Portraits on a Sony full-frame body where the lens has to stay light, and video where 23 decibels of focusing noise is the specification that matters.

    ≈ $430 / £237 / 262 €

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  5. Panasonic Lumix G 25mm F1.7, 125 g, 46mm thread

    Micro Four Thirds mount · 25mm, equivalent to 50mm in 35mm terms · F1.7, closing to F22 · 47 degree diagonal angle of view · minimum focus 0.25 m · 46mm filter thread · about 125 g · no blade count published · no autofocus motor named · no sealing claimed

    A 125 g normal prime for Micro Four Thirds at 159 €, publishing its equivalence, its angle of view, its aperture range, its close focus, its thread and its weight — six figures, on a page of five short bullets.

    Best for: A Micro Four Thirds body that should stay small, where a normal field of view, F1.7 and 125 g cover most of what a single lens is asked to do.

    ≈ $198 / £149 / 159 €

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  6. Lightdow 85mm F1.8 manual-focus portrait lens for Canon EF

    Canon EF and EF-S · full frame and APS-C · 85mm · F1.8 · manual focus, no autofocus motor · metal housing with a hood · no blade count published · no minimum focus published · no filter thread published · no sealing claimed · no weight published

    An 85mm portrait prime at F1.8 for 141 €, focusing entirely by hand, with a metal body and a hood — and a page that publishes the focal length, the aperture and no other measurement.

    Best for: Portraits and video on a Canon EF body for someone who focuses by hand deliberately, where 85mm at F1.8 is worth more than convenience.

    ≈ $97 / £97 / 134 €

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  7. Sony SEL35F18F, FE 35mm F1.8, 9 blades

    E mount · full frame, and APS-C · 35mm · F1.8 · 9-blade circular aperture · the page names a linear motor drive in one bullet and a Direct Drive SSM in another · dust and moisture resistant design claimed · focus mode switch and customisable focus hold button · no minimum focus published · no filter thread published · no weight published

    A sealed full-frame 35mm at F1.8 for 499 €, with nine rounded blades and a focus hold button — and a page that names two different focus drive systems for the same lens.

    Best for: Reportage and everyday full-frame work outdoors, where the sealing claim and the focus hold button are the things the money is buying.

    ≈ $798 / £539 / 499 €

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  8. Sigma 35mm F1.4 DG DN Art for Sony E

    Sony E mount · full frame, from the DG designation · 35mm · F1.4 · Super Multi-Layer coating against flare and ghosting · autofocus described as fast and quiet, motor not named · no blade count published · no minimum focus published · no filter thread published · no sealing claimed · no weight published

    The dearest lens of the eight here at 879 €, a full-frame 35mm at F1.4 from Sigma’s Art line — sold on five phrases that publish the aperture and nothing else measurable.

    Best for: Full-frame reportage where F1.4 at 35mm is the requirement and the specification sheet will be found somewhere other than the listing.

    ≈ $959 / £699 / 879 €

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Each amount in a write-up is what the listing showed when that page was written. The figure next to the product is pulled in as you read, and it is the one that counts.