Eye autofocus works even in the worst light with this lens. It is tack sharp wide open at f1.8 and requires no stopping down to guarantee focus even in terrible conditions. The resolution is easily good enough for the 42 megapixel sensor.

Durable; Great Picture Quality; Simple Controls

Bulky

In comparison, it's a different lens from the Sigma 85mm f1.4 Art lens but probably not enough besides focal lengths.

Sigma's range of Art lenses has catapulted the company into the upper echelons of lens production, and the 135mm f/1.8 demonstrates the appeal of the series beautifully.

As with many of the other 11 Sigma Art lenses before it, the Sigma 135mm f/1.8 DG HSM Art Lens arrived to a solid anticipation. Sigma has primed that anticipation by continually delivering great-performance in the Art lens lineup and who doesn't love the optical specs of this lens

Since the inception of its premium Art range of lenses towards the end of 2012, Sigma has gone from strength to strength. The 35mm f/1.4 DG HSM Art lens that kicked the whole series off has since been joined by four more focal lengths – 20mm, 24mm, 50mm and 85mm – to fill out an impressive set of...

- Superb sharpness and very few optical aberrations, - Dreamy bokeh, - Superbly built, - Superb sharpness and very few optical aberrations, - Dreamy bokeh, - Superbly built

Rather hefty, Rather hefty

The cult Canon EF 135 mm f2L USM in the frame centre was able to reach 43.2 lpmm at most. The Sigma A 135 mm f/1.8 DG HSM reached 44.1 lpmm on the edge of full frame, when wide open. Do I have to say anything more? Once again we award the Sigma our „Editor’s Choice of Lenstip.com” badge.

Solid and stylish casing,, Brilliant image quality in the frame centre,, Sensational image quality on the edge of APS-C sensor,, Sensational image quality on the edge of full frame,, Lack of spherical aberration problems,, Practically zero lateral chromatic aberration,, Imperceptible distortion,,...

Noticeable vignetting at the maximum relative aperture and on full frame,, A tad too high longitudinal chromatic aberration.

The Sigma 135mm F1.8 DG HSM Art lens is a versatile lens for a wide range of different types of photographers. It would be particularly well suited to portrait photographers, as well as events and wedding photographers. Sports photographers may also find it useful.

Sigma 135mm F1.8 DG HSM A is a Fixed aperture Auto Focus (AF) Telephoto Prime lens with 35mm FF max sensor coverage, and it is designed to be used with L Mount cameras. What type of photography is the Sigma 135mm F1.8 DG HSM A lens good for?

Weather-sealed, Autofocus, Distance Scale, Hood supplied, Full-time Manual Focusing, Focus Distance Limiter, Fast Aperture, Covers Full-Frame Sensor, 9 Diaphragm Blades for Smooth Bokeh, Heavy, Pricey

Weather-sealed, Autofocus, Distance Scale, Hood supplied, Full-time Manual Focusing, Focus Distance Limiter, Fast Aperture, Covers Full-Frame Sensor, 9 Diaphragm Blades for Smooth Bokeh, Heavy, Pricey

In our review of the Sigma 85mm f/1.4 HSM DG ART we were pretty much stunned by its quality. However, the Sigma 135mm f/1.8 HSM DG ART tops that. Those who have followed us over the years know that we don't easily come up with superlatives but this time it's hard to avoid them really.

The Sigma 135mm ƒ/1.8 DG HSM "Art" is one of the sharpest lenses we've ever tested. It's not an inexpensive lens, but for what you get -- great build quality, outstanding sharpness, little to no chromatic aberration, and almost zero distortion -- the lens is worth every penny, and destined to become...