Pentax Star HD -D FA★85mmF1.4ED SDM Prime Telephoto Review
Pentax's 85mm f/1.4 is a masterpiece of niche engineering. It delivers stunning portraits with best-in-class autofocus, but its heavyweight design and premium price tag make it a tool for dedicated pros only.
The 30-Second Version
For Pentax die-hards, this is the portrait lens you've been waiting for—blazing fast AF and gorgeous bokeh in a heavy, expensive package. Everyone else, admire it from afar.
Overview
Look, if you're shooting Pentax and you want an 85mm f/1.4, this is the only game in town. And honestly, it's a pretty fantastic game. This Star-series lens is Pentax's flagship portrait prime, and it feels like they threw everything at it. The one thing to know? It's a specialist's tool. It's not trying to be a jack-of-all-trades; it's built to make beautiful images with a specific look, and it absolutely nails that.
Performance
The autofocus is the real shocker here, ranking in the 99th percentile. For a Pentax lens, that's almost unheard of. The new ring-type ultrasonic motor is quick, quiet, and confident. It locks focus faster than you'd expect from a lens this heavy and with an aperture this wide. The stabilization is also impressive, leveraging the in-body system Pentax is known for, which means every shot has a fighting chance to be sharp, even at slower shutter speeds.
Pros & Cons
Pros
- Autofocus is best-in-class and shockingly good for Pentax. 99th
- Beautiful, creamy bokeh that makes subjects pop. 91th
- Built-in stabilization (via the camera body) works brilliantly. 88th
- Solid, if heavy, build quality that feels premium. 88th
Cons
- It's a boat anchor. At over 44 ounces, your arm will get a workout. 35th
- Versatility is a weak spot. This is a portrait lens, period.
- Build quality percentile is mediocre, which is odd for a 'Star' lens.
- At $2,400, you're paying a massive premium for the Pentax ecosystem.
The Word on the Street
Specifications
Full Specifications
Optics
| Type | Telephoto |
| Focal Length Min | 85 |
| Focal Length Max | 85 |
Aperture
| Max Aperture | f/1.4 |
Build
| Mount | Pentax K |
AF & Stabilization
| AF Type | USM |
| Stabilization | Yes |
Focus
| Min Focus Distance | 50 |
Value & Pricing
Worth it? Only if you're deeply invested in Pentax. For $2,400, you're buying into a niche system. The optical performance is strong, but our data shows its overall optical score is just middle of the pack. You're paying for the f/1.4 aperture, the build, and the Pentax badge. If you need this focal length on this mount, it's your only real option, and it's a good one. But it's not a value play.
Price History
vs Competition
This lens exists in a world of its own because of the Pentax mount. If we compare it to similar flagship primes from other brands, like the Sony 85mm f/1.4 GM or the Canon RF 85mm f/1.2L, the Pentax holds its own in sharpness and bokeh but loses on versatility and, crucially, system support. The more direct competition for your money might be the Nikon Z 85mm f/1.8 S, which is lighter, cheaper, and optically stellar, but you'd have to switch systems. For Pentax shooters, there is no comparison.
| Spec | Pentax Star HD -D FA★85mmF1.4ED SDM Prime Telephoto | Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF | Viltrox Air VILTROX 35mm F1.7 f/1.7 Air AF Lens for Fuji X | Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony | Canon RF Canon RF 24mm f/1.8 Macro IS STM Lens | Nikon NIKKOR Z Nikon NIKKOR Z 24-70mm f/2.8 S II Lens (Nikon Z) |
|---|---|---|---|---|---|---|
| Focal Length | 85mm | 55mm | 35mm | 17-70mm | 24mm | 24-70mm |
| Max Aperture | f/1.4 | f/1.4 | f/1.7 | f/2.8 | f/1.8 | f/2.8 |
| Mount | Pentax K | Nikon Z | Fujifilm X | Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-M | Canon RF | Nikon Z |
| Stabilization | true | true | true | true | true | true |
| Weather Sealed | false | false | false | false | false | true |
| Weight (g) | - | 281 | 400 | 544 | 272 | 676 |
| AF Type | USM | STM | STM | Autofocus | Autofocus | Autofocus |
| Lens Type | Telephoto | - | - | Wide-Angle Zoom | Wide-Angle | Wide-Angle Zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Pentax Star HD -D FA★85mmF1.4ED SDM Prime Telephoto | 99.1 | 81.8 | 37.9 | 90.6 | 34.6 | 88.1 | 37.5 | 60.6 | 87.8 |
| Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare | 95.6 | 81.8 | 81.1 | 89.1 | 67.5 | 88.1 | 37.5 | 89.9 | 87.8 |
| Viltrox Air 35mm F1.7 f/1.7 AF Compare | 95.6 | 73.6 | 63.4 | 93.2 | 74 | 80.5 | 37.5 | 95.1 | 87.8 |
| Tamron Di III 17-70mm f/2.8 -A VC RXD Compare | 46.4 | 59.2 | 64.3 | 77.4 | 90.8 | 54.6 | 92.5 | 95.1 | 87.8 |
| Canon RF 24mm f/1.8 Macro IS STM Compare | 46.4 | 81.8 | 87.6 | 81 | 82.5 | 75.8 | 37.5 | 98 | 99.9 |
| Nikon NIKKOR Z 24-70mm f/2.8 S II Compare | 46.4 | 71.6 | 72.1 | 72.4 | 97 | 54.6 | 85.4 | 98 | 87.8 |
Common Questions
Q: Is the weight really that bad?
Yes. At over 2.7 pounds, it's a heavyweight champion. It's not a casual walk-around lens. Your neck and shoulders will know it's there after an hour.
Q: Is it weather-sealed?
The specs say it has an 'All Weather' structure, but our build quality percentile is only 39th, which suggests the sealing might not be as robust as some competitors. I'd trust it in a light drizzle, but not a downpour.
Q: How's the sharpness wide open at f/1.4?
It's very good. The lens uses special glass to control aberrations, so you can shoot at f/1.4 with confidence. The corners sharpen up nicely when you stop down a bit.
Who Should Skip This
If you're a travel or street photographer looking for a lightweight, versatile prime, this isn't it. It scored a dismal 36.6 for travel. Go get a compact 35mm or 50mm instead. Also, if you're just starting out and don't have a Pentax body, don't buy this lens hoping it will justify the system. It won't.
Verdict
This is a clear, decisive recommendation for the Pentax photographer who lives for portraiture and has the budget. The autofocus and stabilization combo is a revelation for the system, and the image quality delivers that classic 85mm f/1.4 magic. However, its weight and single-minded purpose mean it's not an everyday lens. If you're a Pentax user looking for that ultimate portrait tool, buy it. If you're not already shooting Pentax, this lens alone isn't a reason to start.