Panasonic Lumix G H-H025K 25mm
The f/1.7 maximum aperture and 50mm equivalent focal length deliver shallow depth of field and solid low-light performance in a 125g body. Its stepping AF motor enables quiet, smooth focusing for video, while the 46mm filter thread keeps accessory costs low. This lens suits Micro Four Thirds shooters focused on portraits and street photography who want a fast normal prime without the bulk.
概览
The 30-Second Version
The best value lens in Micro Four Thirds, period. If you shoot MFT and don't own this, fix that.
Pros & Cons
优点
- Ridiculously good value at $198 94th
- Bright f/1.7 aperture for low light and shallow depth of field 90th
- Tiny and light at 125g, perfect for travel 86th
- Bokeh quality punches way above its price
缺点
- No optical stabilization, and it's not weather sealed
- Optical quality is just average overall
- Autofocus is nothing special
- Landscape shooters will find it limiting
用户评价
The Word on the Street
用户口碑如何随时间变化
独家依据客户实际撰写评价的时间--让你看到最初的好评是否持续。
基于 8 条带日期的客户评价，按日历季度分组。分期分析为英文。
实测数据
Performance
What surprised us most is how good the bokeh is for a lens this cheap. The 7-blade rounded diaphragm and f/1.7 aperture put it in the 92nd percentile for bokeh, which is wild for a sub-$200 lens. Autofocus is fine but not stellar, sitting right around average. The stepping motor is quiet enough for video, but it's not going to win any speed races. Optical quality is a mixed bag, middle of the pack overall, but the center sharpness wide open is more than usable for portraits.
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 25 |
| Focal Length Max | 25 |
| Elements | 8 |
| Groups | 7 |
| Aspherical Elements | 2 |
| Coating | Nano Surface Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.7 |
| Constant | Yes |
| Diaphragm Blades | 7 |
Build
| Mount | Micro Four Thirds |
| Format | micro-four-thirds |
| Weight | 0.1 kg / 0.3 lbs |
| Filter Thread | 46 |
AF & Stabilization
| AF Type | Stepping AF Motor |
| Stabilization | No |
Focus
| Min Focus Distance | 250 |
| Max Magnification | 0.14x |
vs Competition
Against the Sigma Contemporary 18-50mm f/2.8, the Panasonic gives up zoom flexibility but wins on aperture and price. The Viltrox AF 13mm F1.4 is a different beast entirely, ultra wide and more expensive, so it's not really a direct competitor. The Sony E 18-135mm f/3.5-5.6 OSS is a zoom with stabilization, but it's slower and pricier. If you want a fast normal prime for MFT, the Panasonic is the clear choice. The 7Artisans LITE AF35mm F1.8 is cheaper but has worse autofocus and build quality.
| Spec | Panasonic Lumix G H-H025K 25mm | Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Viltrox AF 35mm f/1.7 XF | Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | 25mm | 18-50mm | 17-70mm | 35mm | 18-140mm | 18-135mm |
| Max Aperture | f/22 | f/2.8 | f/2.8 | f/1.7 | f/3.5 | f/3.5 |
| Mount | Micro Four Thirds | Sony E | Sony E | Fujifilm X | Nikon Z | Sony E |
| Stabilization | false | false | true | true | true | true |
| Weather Sealed | false | true | true | false | true | false |
| Weight (g) | 125 | 290 | 544 | 180 | 312 | 326 |
| AF Type | Stepping AF Motor | stepping motor | RXD | STM (Stepping Motor) | Stepping motor | Linear motor |
| Lens Type | prime | zoom | zoom | prime | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Panasonic Lumix G H-H025K 25mm | 85.6 | 13.8 | 93.5 | 37.9 | 56.6 | 21.5 | 33.6 | 89.7 | 36.2 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 85.6 | 84.2 | 85.4 | 91.4 | 81.3 | 86.2 | 78.6 | 89.7 | 36.2 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.8 | 88.9 | 67.5 | 85.4 | 90.5 | 86.2 | 89.6 | 85.4 | 81.5 |
| Viltrox AF 35mm f/1.7 XF Compare | 85.6 | 95.6 | 86.7 | 97.2 | 65.5 | 95.2 | 33.6 | 85.4 | 81.5 |
| Nikon NIKKOR Z DX 18-140mm f/3.5-6.3 VR Compare | 85.6 | 78.2 | 84.4 | 90.3 | 89.6 | 79.9 | 96.3 | 33.8 | 96.7 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 97.7 | 78.2 | 71.6 | 39.4 | 77.7 | 79.9 | 95.9 | 89.7 | 81.5 |
价格
Value & Pricing
At $198 USD, this is a no-brainer. You're getting a bright prime with excellent build quality and bokeh that competes with lenses costing three times as much. The only reason to hesitate is if you already have a 25mm prime, and even then, this is probably better than what you've got.
B&H Photo 1 个报价 最低 US$198
我们自 2026年7月19日 起追踪该产品的价格。数据增多后将显示图表。
了解更多
Overview
The Panasonic G 25mm f/1.7 is the lens that makes Micro Four Thirds make sense. It's tiny, cheap, and gives you a classic 50mm equivalent with a bright f/1.7 aperture. If you own an MFT camera and don't have this, you're doing it wrong. The one thing to know: this is the best value prime in the system, bar none.
Common Questions
Q: Is this lens good for portraits?
Yes, it's great for portraits. The 50mm equivalent focal length and f/1.7 aperture give you nice subject separation and flattering compression. The bokeh is surprisingly good for the price.
Q: Does it work on Olympus cameras?
Yep, it's a Micro Four Thirds lens, so it works on any MFT body from Panasonic, Olympus, or OM System. Autofocus works fine across brands.
Q: Is it weather sealed?
No, it's not weather sealed. If you shoot in rain or dust, you'll want to be careful or look at something like the Panasonic Leica 25mm f/1.4 II, which is sealed but costs a lot more.
Who Should Skip This
If you need weather sealing or optical stabilization, this isn't it. Go get the Panasonic Leica 25mm f/1.4 II instead, it's sealed and sharper, but you'll pay triple the price. Landscape shooters should also look elsewhere, this lens is weakest there.
Verdict
Buy it. The Panasonic G 25mm f/1.7 is the lens every Micro Four Thirds shooter should own. It's fast, sharp enough, and so cheap that skipping it is almost irresponsible. Unless you need weather sealing or stabilization, this is the default choice for a normal prime on MFT.
