1 / 4Urth ULMA-OM-M4/3 Olympus OM to Micro Four Thirds Lens Adapter
Urth ULMA-OM-M4/3 adapts Olympus OM lenses for use with Micro Four Thirds camera bodies, according to the listing. It is a manual adapter, so focus and exposure settings must be adjusted by hand rather than relying on automatic functions.
At a glance
- Designed to connect an Olympus OM lens to a Micro Four Thirds camera body.
- Manual operation requires adjusting focus and exposure yourself.
- The listing describes a hardened aluminium and copper construction with an anti-reflective matte coating.
- The manufacturer says the adapter funds the planting of 5 trees in areas affected by deforestation.
Reference price: €49.00
Price checked: 13 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- Supports using Olympus OM lenses on Micro Four Thirds camera bodies, expanding options for compatible manual lenses.
- Customers describe the adapter as well-made and appreciate its functionality, including bringing older manual lenses back into use.
- The listing specifies aluminium construction and a matte finish.
Cons
- Automatic functions are not supported, so focus and exposure require manual adjustment.
Technical specifications
8 specifications| Brand | Urth |
|---|---|
| Model | ULMA-OM-M4/3 |
| Mounting type listed | Micro Four Thirds |
|---|---|
| Dimensions listed | 8 x 8 x 8 centimetres |
| Weight listed | 0.12 Kilograms |
| Material listed | Aluminum |
|---|---|
| Colour | Black |
| Finish | Matte |
What to know before buying
- The manufacturer claims a secure, slightly sealed fit and a lifetime warranty. Check the applicable warranty terms for your purchase.
What’s in the box
Included- Adaptor
Who is it for?
A good fit for
- Photographers with an Olympus OM lens and a Micro Four Thirds camera body who are comfortable focusing and setting exposure manually.
- Buyers looking to use older manual lenses on a compatible Micro Four Thirds body.
Less suited to
- Anyone who needs autofocus or automatic exposure with this adapter.
Customer reviews on Amazon
- 5 stars
56% 56% - 4 stars
15% 15% - 3 stars
12% 12% - 2 stars
4% 4% - 1 star
13% 13%
Customer feedback highlights perceived build quality, value and functionality, with a reported example of bringing an old manual lens back into use. That use fits the adapter's stated purpose, but manual focus and exposure remain necessary. The overall rating distribution is mixed, so the positive comments do not establish that every buyer will have the same experience.
Positive themes
- Customers describe the adapter as well-made.
- Customers appreciate its functionality and value, including use with older manual lenses.
Frequently asked questions
Which lenses and camera bodies is this adapter designed for?
The listing describes it for Olympus OM lenses and Micro Four Thirds camera bodies. Confirm that your particular lens and body use those mounts before buying.
Does it support autofocus or automatic exposure?
No. The listing says automatic functions are not supported, and focus and exposure settings must be adjusted manually.
What construction materials are listed?
The technical details list aluminium. The feature text additionally describes hardened aluminium and copper with an anti-reflective matte coating.
