1 / 4Urth ULMA-OM-R Lens Mount Adapter for Canon RF to Olympus OM
The Urth ULMA-OM-R adapts Olympus OM mount lenses to Canon RF mount camera bodies, according to the listing. It is a manual adapter, so focus and exposure settings need to be adjusted manually rather than relying on automatic functions.
At a glance
- Designed for Olympus OM mount lenses on Canon RF mount camera bodies.
- Manual operation requires adjusting focus and exposure settings yourself.
- The listing describes hardened aluminium and copper construction with a matte anti-reflection finish.
- Urth says the adapter funds the planting of five trees in areas affected by deforestation.
Reference price: €59.00
Price checked: 12 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- Allows use of Olympus OM mount lenses on Canon RF mount camera bodies, creating a way to use lenses from a different mount system.
- The stated manual operation and need to set focus and exposure are clearly disclosed.
- The listing describes a light-sealed, snug fit and an anti-reflection finish.
Cons
- Automatic functions are not supported, so focusing and exposure require manual adjustment.
Technical specifications
5 specifications| Brand | Urth |
|---|---|
| Model | ULMA-OM-R |
| Dimensions listed | 8 x 8 x 8 centimetres |
|---|---|
| Weight listed | 0.15 Grams |
| Material listed | Aluminium |
|---|
What to know before buying
- The listed weight is 0.15 Grams. Confirm that this unusually low stated figure and the listed dimensions suit your expectations before purchase.
What’s in the box
Included- Adapter
Who is it for?
Customer reviews on Amazon
- 5 stars
87% 87% - 4 stars
0% 0% - 3 stars
0% 0% - 2 stars
13% 13% - 1 star
0% 0%
Only aggregate rating information is supplied, with ratings concentrated in five-star reviews but a smaller two-star share also present. This limited snapshot does not explain the reasons for either view or establish customer experiences with manual operation. Buyers should weigh the stated need for manual focus and exposure against their own camera and lens workflow.
Frequently asked questions
Which lens and camera mounts does this adapter connect?
The listing specifies Olympus OM mount lenses and Canon RF mount camera bodies.
Does the adapter support automatic focus or exposure?
No. The listing says automatic functions are not supported, and focus and exposure settings must be adjusted manually.
What material is listed?
The technical details list Aluminium. The feature description also says it is machined from hardened aluminium and copper.
