How the Kase 85mm f/1.4 Lens Stands Up Against Viltrox and Sony

When I first saw that Kase, the folks who are most known for filters, were putting out an autofocus prime, I was intrigued but skeptical. I mean, Kase produces great magnetic filter systems, but a whole Kase 85mm f/1.4 lens? That is an entirely different game.

Photographer Mark Bennett recently reviewed it, and having watched his in-depth review, I can tell you this: Kase might have come in quietly, but they are here to play.

This is Kase’s first autofocus lens and is available for Sony E-mount and Nikon Z-mount. It costs €739.90, so not aggressively budget-friendly, but less than a lot of the competition. It pits itself directly against the Viltrox 85mm f/1.4, which is priced at around $598. So what does that extra $140 afford you?

First, it is tiny and featherlight. It weighs in at 585 grams, which is light compared to the Viltrox (795 grams). For an f/1.4 85mm lens, that’s a big deal, particularly for portrait photographers who shoot by hand or tote equipment all day.

Well-Crafted Optics and Intelligent Design in the Kase 85mm f/1.4 Lens

The Kase 85mm f/1.4 has a light plastic body, but do not be fooled. It still feels substantial. There is metal in the mount, the focus ring is well-damped, and the aperture ring can be clicked or de-clicked according to your working style. You also have two focus hold buttons (something not often found on lenses at this price level), and a USB-C port for firmware upgrades. And, of course, the lens is weather-sealed, which is a huge plus if you shoot outside.

Kase also remains faithful to its filter heritage by keeping this lens compatible with its magnetic filter system. It retains a 72mm thread and includes both a pinch cap and a magnetic lens cap. That is a nice touch, particularly if you already have Kase filters.

So, the big question: how does it photograph?

Mark found it to be extremely sharp, even wide open at f/1.4. In fact, he reports it to be sharper than the Viltrox version when pixel-peeping. Colors are neutral, contrast is robust, and chromatic aberration is essentially invisible, even in difficult high-contrast shots.

Bokeh is beautiful, smooth, gentle, and unblemished. Mark says there is no “onion ring” texture you get in lower-priced fast primes sometimes. And flare suppression is great, also. Actually, the Kase does a better job than the Viltrox when shooting into direct light sources, preserving contrast and preventing ghosting.

Key Specs at Glance

Here are the most important specs:

• Aperture: f/1.4 to f/16
• Weight: 585g
• Mounts: Sony E, Nikon Z
• Minimum focus distance: 70cm
• Autofocus: Quick and accurate
• Extras: Dual focus hold buttons, USB-C for firmware, magnetic cap compatibility, weather sealing

Mark says that it is not flawless. As per him, there is quite a bit of focus on breathing, which may annoy video shooters making long pulls or layering images. Also, as a third-party lens, it does not support Sony’s in-camera focus breathing correction. He reveals that it is limited to 15 fps on high-speed Sony bodies like the A9 III.

But seriously? Those are tiny concessions in the grand scheme.

I left this review impressed. The Kase 85mm f/1.4 lens is not yet going to take over the market, but it is definitely promising. It is sharp, well-designed, and it remains lightweight without seeming cheapskate. For my money, magnetic filter compatibility alone makes it an attractive portrait option, particularly when packing light.

Sure, it costs a bit more than the Viltrox, but you are getting cleaner images, a more compact build, and some genuinely clever features. If this is what Kase can do with their first lens, I am excited to see what comes next.

[This Brand New Lens Just Leapfrogged Everybody I Mark Bennett; Image credits: Kase]

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