Urth Pentax K to Micro Four Thirds Lens Mount Adapter

Pentax K Lens to Micro Four Thirds (M4/3) Camera Adapter

The Pentax K to Micro Four Thirds (M4/3) Mount Adapter enables seamless, secure compatibility between your Pentax K lenses and Micro Four Thirds (M4/3) mount cameras, without compromising optical performance or manual control.

- Manual cross-system compatibility
- Precision-fit machined threads
- Durable, warp-resistant aluminium
- Anti-reflective matte interior
- No optical interference
- Lifetime warranty

Lens Compatibility

Pentax K mount lenses
Camera Compatibility

Micro Four Thirds (M4/3) mount cameras
Adapter Type

Manual
Material

6061 Aluminium
Finish

Anti-reflective anodised, matte black interior
Infinity Focus

Supported
Warranty

Lifetime warranty

To find out more information about the impact of this Urth product, view our Life Cycle Analysis (LCA) report here

Free shipping to selected European countries on orders €100 and over (Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden).

Standard shipping: 3-7 days

Express shipping: 1-3 days

Please allow an extra 2 days for regional areas.

Pentax K Lens to Micro Four Thirds (M4/3) Camera Adapter

Design Features

Aerospace-Grade Materials

Made from aerospace-grade aluminium to resist warping, impact and environmental wear — ready for demanding conditions.

Cross-System Adaptation

Machined to exacting tolerances, the adapter ensures a perfect fit — preserving performance and alignment across your gear.

Responsible Design

A Certified B Corp, Urth meets high standards of social and environmental responsibility, ensuring a 10x net-positive impact.

How to: 101

1/4

Set Camera to Manual

Set mode to Manual (M) or Aperture Priority (A). Set lens to Manual Focus (MF) if there's an AF/MF switch.

2/4

Attach Lens to Adapter

Align the red dots on your lens and adapter, and rotate clockwise until locked.

3/4

Mount Adapter to Camera

Attach the adapter to your camera as you would a lens, rotating it clockwise until it clicks into place.

4/4

Remove from lens

Tenderly press and hold metallic button on adapter and rotate counter-clockwise.

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average rating 4.8 out of 5

Based on 4 reviews

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4 Reviews

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Reviewed by Kenji

Verified Buyer

I recommend this product

Years Experience

0-2

Style

Outdoor
Travel
Events

Rated 5 out of 5

Review posted

Quick Shipping and High Quality Product

Product shipped quicker than expected with free shipping as well!

The adapter is made well and fits tightly preventing the lens from wiggling at all. Having not much experience with lens adapters, I thought that I had gotten the wrong adapter (I have already gotten a wrong one before due to a error in the listing for the lens I got), but as it turns out, it was because the adapter was built just perfectly.

This was my first time buying from URTH and I must say I'm very impressed. I highly recommend this to anybody needing a lens adapter.

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Reviewed by Alex B.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Outdoor
Travel
People
Events
Documentary

Rated 5 out of 5

Review posted

Excellent Accesory

An extremely well made adapter at a very reasonable cost. Works very well on my LUMIX camera with a selection of Pentax prime lenses. Very impressed as usual with the standard of Urth equipment.

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Reviewed by IAN JAMES S.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Documentary
Video
Outdoor

Rated 4 out of 5

Review posted

Package arrived today

An odd one, this, supposedly a genuine Carl Zeiss Jena zoom lens. After ordering it from 'Urth', I did a bit more on-line research and found that it was highly unlikely that it was of Zeiss manufacture.

Evidently, it seems some Japanese firm had used the name. The lens looks to be well-made, but for some reason the retractable locking-pin will not lock the adaptor into position. Furthermore, as on commentator pointed out, Zeiss to the best of his knowledge did not produce Zoom lenses, only 'Primes'. To this day they produce mainly primes for manual focussing only. I have set the lens aside (it was supposedly in a Pentax fitting, and I shall keep my eye out for another 'Pentax

K fitting lens. as they are not all that rare. As far as the quality of the adaptor is concerned - excellent.

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Reviewed by Paul

Verified Buyer

I recommend this product

Years Experience

10+

Style

People
Travel
Outdoor

Rated 5 out of 5

Review posted

I love this tiny piece of equipment

I recently switched from Pentax to LUMIX but have a few Pentax lenses that I fell in love with. Especially the fa 50mm f1.4. I can now use it on my gx80 and it is absolutely stunning. As long as your lens has an aperture- as well as a focus ring you are golden with this adapter.

Manual handling is no trouble at all with focus peaking and magnification.

In short, with just 23€ my lens collection for MFT has increased significantly in quantity and quality. Thank you Gobe(Urth)

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Pentax K Lens to Micro Four Thirds (M4/3) Camera Adapter

Manual cross-system lens adapter

Pentax K Lens to Micro Four Thirds (M4/3) Camera Adapter