After spending some hands-on time with the Viltrox lens, it hasn’t disappointed.

The 135mm F1.8 LAB is virtually flawless optically, and offers incredible value.

That day has now come.

Viltrox 135mm F1.8 Lab lens for Nikon Z-mount, in the hand, attached to a Nikon Z6 II

(Image credit: Tim Coleman)

For Nikon Z users like me, that’s clearly a huge difference.

So what do I think of the Viltrox 135mm f/1.8 LAB now that I’ve tested it?

It’s a truly stunning lens, although it does have one significant drawback that has me thinking twice.

Viltrox 135mm F1.8 Lab lens for Nikon Z-mount, in the hand, attached to a Nikon Z6 II

(Image credit: Tim Coleman)

It’s also possible to apply firmware updates easily through the USB-C port built into the rear mount.

There’s also a AF / MF switch plus a focus-range limiter.

These exterior controls cover all the bases for the scenarios in which I see myself using the lens.

Viltrox 135mm F1.8 Lab lens for Nikon Z-mount, in the hand, attached to a Nikon Z6 II

(Image credit: Tim Coleman)

Autofocus is smooth and essentially silent.

I’ll touch on why I think so in a bit.

In the box is a decent-sized lens hood and a soft lens pouch for packing the lens away safely.

Viltrox AF 135mm F1.8 LAB FE…

So, all in all, the Viltrox 135mm F1.8 sounds great, right?

And it is, but for one thing.

As I mentioned in my verdict at the start of this review, this lens is heavy very heavy.

Prime

It’s the first thing you notice as you take it out of the box.

43.6oz / 1,235g, without the lens hood.

I wish the Viltrox was lighter, at least for using it with my Z6 II.

Viltrox AF 135mm f/1.8 LAB Z…

Still, there’s also a very good reason why this lens is so heavy its supreme optical quality.

Detail is sharp from center to edges, even when using the maximum f/1.8 aperture.

Would I buy this lens?

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Its weight and slightly sluggish autofocus are the only drawbacks to an otherwise flawless lens.

Should you buy the Viltrox 135mm f/1.8 LAB?

It’s already available for Sony E-mount.

Viltrox 135mm F1.8 Lab lens for Nikon Z-mount, in the hand

(Image credit: Tim Coleman)

Close up of the Viltrox 135mm F1.8 Lab lens' barrel

(Image credit: Tim Coleman)

Close up of the Viltrox 135mm F1.8 Lab lens' LED display, with focus distance scale

(Image credit: Tim Coleman)

Close up of the Viltrox 135mm F1.8 Lab lens controls

(Image credit: Tim Coleman)

Close up of the Viltrox 135mm F1.8 Lab lens' electronic contacts

(Image credit: Tim Coleman)

Close up of the Viltrox 135mm F1.8 Lab lens' barrel

(Image credit: Tim Coleman)

Viltrox 135mm F1.8 Lab lens for Nikon Z-mount, in the hand, attached to a Nikon Z6 II

(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket at golden hour with dappled light in background

A portrait taken with the aperture set to f/1.8(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket and golden hour with dappled light in background

The same portrait, but at f/2.8(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket and golden hour with dappled light in background

With aperture set to f/1.8, bokeh is smooth, big and round(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket and golden hour with dappled light in background

Even at f/2.8, bokeh quality is lovely.(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket and golden hour with dappled light in background

I tried my hardest to induce lens flare, and even then the quality of shots is top drawer(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket and golden hour with dappled light in background

Another lens flare attempt(Image credit: Tim Coleman)

Portraits of a man in a beanie hat and shacket and golden hour with dappled light in background

135mm is an excellent focal length for isolating subjects, and focus fall-off at f/1.8 is smooth.(Image credit: Tim Coleman)

Daffodils at golden hour with dappled light in background

f/1.8(Image credit: Tim Coleman)

Daffodils at golden hour with dappled light in background

f/2.8(Image credit: Tim Coleman)