Micro Four Thirds is one of the most mixed lens systems around. Panasonic, OM System (formerly Olympus) and third-party makers all build for the same mount, so a single camera body can take a small prime, a wide-angle for video or a long travel zoom. The listings below give a good spread of focal lengths.
The six lenses here run from a 9mm ultra-wide prime to a 14-140mm zoom. Sizes, apertures and weights come from each product’s listing page. We have not used these lenses ourselves. Performance and weather-resistance statements are the makers’ own, and a few listings contain conflicting details that we point out.
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What to Look For
| Feature | Why it matters |
|---|---|
| Focal length | On this format the 35mm-equivalent view is roughly double the printed number |
| Maximum aperture | A wider opening such as f/1.4 to f/1.8 lets in more light and blurs backgrounds more |
| Focus type | Autofocus suits video and action; manual lenses suit slower work |
| Filter size | Matching sizes lets one set of filters serve several lenses |
| Size and weight | Small lenses keep the body light for travel |
Specs at a Glance
| Lens | Focal length and aperture | Focus | Notes |
|---|---|---|---|
| Panasonic Lumix G 25mm | 25mm; f/1.7 | Autofocus (stepping motor) | About 125 g; 46mm filter thread |
| Panasonic Leica DG 9mm | 9mm; f/1.7 | See note in entry | 55mm filter thread; 0.095 m close focus |
| OM System 45mm | 45mm; f/1.8 | Autofocus | 116 g; 37mm filter thread |
| Panasonic Lumix G Vario 14-140mm | 14-140mm; f/3.5-5.6 | Autofocus; Power O.I.S. | 10x zoom; 58mm filter thread |
| OM System 40-150mm R | 40-150mm; f/4.0-5.6 | Autofocus | 6.72 oz; 58mm filter thread |
| TTArtisan 17mm | 17mm; f/1.4 to f/16 | Manual | 10 aperture blades; 40.5mm filter thread |
The 6 Best Micro Four Thirds Lenses
1. Panasonic Lumix G 25mm F1.7
A compact standard prime that the maker describes as a natural 50mm-equivalent view. It has an f/1.7 aperture, 8 elements in 7 groups including 2 aspherical lenses, a stepping motor for quiet focusing in photo and video and a 46mm filter thread, at about 125 grams and 2.05 inches long. The listing’s spec table labels the lens design as zoom, which conflicts with its fixed 25mm focal length.
Suits: an everyday first prime. Strengths: a light body and a quiet focus motor. Weaknesses: no stabilization is listed. Skip it if you want a wider or longer view.
2. Panasonic Leica DG Summilux 9mm F1.7
An ultra-wide prime with an 18mm-equivalent view, an f/1.7 aperture and a close-focus distance of 0.095 m with a 0.25x magnification ratio. The maker describes a dust, splash and freeze-resistant design and video support with minimal focus breathing. The spec table shows manual focus and optical stabilization, while the bullets do not confirm either, so check the focus type and stabilization on the listing before buying.
Suits: wide video and interiors. Strengths: a bright aperture and a very short close-focus distance. Weaknesses: conflicting focus details in the listing. Skip it if you want a standard view.
3. OM System Olympus M.Zuiko 45mm F1.8
A small portrait prime at 116 grams with an f/1.8 aperture, a seven-blade rounded diaphragm, a minimum focusing distance of 0.20 m and a 37mm filter thread. The listing describes quiet focusing for video and offers an optional LH-40B lens hood. The overview names the mount as Four Thirds while the title and model name say Micro Four Thirds, and the stabilization entry is unclear.
Suits: portraits and low light. Strengths: very light and a bright aperture. Weaknesses: the lens hood is optional and listed separately. Skip it if you need a wide view.
4. Panasonic Lumix G Vario 14-140mm F3.5-5.6 II
A 10x telephoto zoom with Power O.I.S. optical stabilization, 14 elements in 12 groups with three aspherical and two ED elements and a 58mm filter thread. The maker describes a splash and dust-resistant build and a metal mount. This is the upgraded version of an earlier 14-140mm lens.
Suits: a single lens for travel. Strengths: a wide zoom range and stabilization. Weaknesses: a variable aperture that narrows when zoomed. Skip it if you want a bright prime.
5. OM System Olympus M.Zuiko 40-150mm F4.0-5.6 R
A lightweight 3.75x telephoto zoom at 6.72 ounces, giving an 80 to 300mm equivalent view, with a 58mm filter thread, a close-up reproduction ratio of 1:6.25 and quiet autofocus for stills and movies. The listing calls it a good second lens for portraits and sports and shows no image stabilization.
Suits: a light second lens for distant subjects. Strengths: low weight and a long reach. Weaknesses: no stabilization in the lens. Skip it if your camera body has no stabilization and you shoot long lenses handheld.
6. TTArtisan 17mm f/1.4
A manual-focus wide-angle prime with a metal build, 9 elements in 8 groups with one aspherical element, an adjustable aperture from f/1.4 to f/16, a 10-blade diaphragm, a 0.2 m minimum focus distance and a 40.5mm filter thread. The listing gives two different angles of view (54.4 degrees in the table and 81 degrees in the bullets), so we do not rely on either.
Suits: street and low-light work. Strengths: a bright aperture and a long-throw focus ring. Weaknesses: manual focus only. Skip it if you want autofocus.
Best Picks by Category
These labels come from the price, star rating and number of ratings shown on each Amazon listing on November 2, 2026. They summarize listing data and are not hands-on test results.
- Top rated: Panasonic Lumix G 25mm F1.7 — 4.8 out of 5 from 2,130 ratings.
- Most reviewed: Panasonic Lumix G 25mm F1.7 — 2,130 ratings averaging 4.8 out of 5.
- Best value: OM System Olympus M.Zuiko 45mm F1.8 — the lowest-priced pick with a 4.7 rating and at least 200 ratings, about $380.
- Lowest price: TTArtisan 17mm f/1.4 — about $139, rated 4.7 out of 5.
- Premium option: OM System Olympus M.Zuiko 45mm F1.8 — about $380, rated 4.7 out of 5.
Price, Rating and Review Comparison
The table sorts the picks by price and adds the star rating and the number of ratings, which shows how much feedback sits behind each average. Prices change often, so confirm the current price on Amazon.
| Product | Price | Rating | Ratings | Price tier |
|---|---|---|---|---|
| TTArtisan 17mm f/1.4 | $139 | 4.7 / 5 | 13 | Mid-range |
| OM System Olympus M.Zuiko 40-150mm F4.0-5.6 R | $170 | 4.6 / 5 | 154 | Mid-range |
| OM System Olympus M.Zuiko 45mm F1.8 | $380 | 4.7 / 5 | 634 | Premium |
| Panasonic Lumix G 25mm F1.7 | n/a | 4.8 / 5 | 2,130 | n/a |
| Panasonic Leica DG Summilux 9mm F1.7 | n/a | 4.7 / 5 | 137 | n/a |
| Panasonic Lumix G Vario 14-140mm F3.5-5.6 II | n/a | 4.6 / 5 | 158 | n/a |
How Much Feedback Backs Each Rating
A high average from a handful of ratings is weaker evidence than a slightly lower average from thousands. Here is how the sample size looks for each pick.
- Panasonic Lumix G 25mm F1.7: 2,130 ratings, a large sample behind its 4.8 average.
- Panasonic Leica DG Summilux 9mm F1.7: 137 ratings, a moderate sample behind its 4.7 average.
- OM System Olympus M.Zuiko 45mm F1.8: 634 ratings, a moderate sample behind its 4.7 average.
- Panasonic Lumix G Vario 14-140mm F3.5-5.6 II: 158 ratings, a moderate sample behind its 4.6 average.
- OM System Olympus M.Zuiko 40-150mm F4.0-5.6 R: 154 ratings, a moderate sample behind its 4.6 average.
- TTArtisan 17mm f/1.4: only 13 ratings, so treat the 4.7 average cautiously.
Care and Setup
- Clean the front element with a blower and a lens cloth.
- Fit a lens hood where one is offered.
- Cap both ends when the lens is stored.
- Check whether your camera body adds its own stabilization.
Mistakes to Avoid
- Forgetting the crop when judging a focal length.
- Assuming every lens has autofocus or stabilization.
- Buying filters without checking the thread size.
- Relying on one listing line when the details conflict.
Micro Four Thirds Lens FAQ
Do these fit both Panasonic and OM System bodies?
All six list the Micro Four Thirds mount. Some features, such as stabilization, can behave differently by body.
Which has the longest reach?
The Panasonic 14-140mm reaches 140mm, about 280mm in 35mm terms.
The Short Version
For an everyday prime, the Panasonic 25mm. For ultra-wide, the Leica 9mm. For portraits, the OM System 45mm. For one travel lens, the Panasonic 14-140mm. For a light telephoto, the OM System 40-150mm. For manual wide, the TTArtisan 17mm.
