Urth Pentax K to Canon (EF/EF-S) Lens Mount Adapter

Pentax K Lens to Canon EF-S Camera Adapter

The Pentax K to Canon EF-S Mount Adapter enables seamless, secure compatibility between your Pentax K lenses and Canon EF-S 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

Canon EF-S mount cameras
Adapter Type

Manual
Material

6061 Aluminium
Finish

Anti-reflective anodised 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 standard shipping within the continental US for orders $100 and over.

We deliver with USPS, UPS and DHL express for faster and safer delivery.

Standard shipping:
US: 3-7 days.
Rest of World: 8-18 days.

Express shipping:
US: 2-4 days.

Please allow an extra 2 days for regional areas.

Pentax K Lens to Canon EF-S 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

1/3

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.

2/3

Attach Lens to Adapter

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

3/3

Mount Adapter to Camera

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

Write a Review

average rating 4.8 out of 5

Based on 4 reviews

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4 Reviews

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Reviewed by Jake P.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Documentary
Outdoor
Video

Rated 5 out of 5

Review posted

Nifty

Cool adapter to use some old classic lens'

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Reviewed by John H.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Outdoor

Rated 5 out of 5

Review posted

Works well.

Seems to be very good quality and clicks on easily with no apparent play or wobble. I actually wanted to use my Pentax K lenses with an astro camera which has a 42mm x .75 thread but there's no adapter for K mount lenses....but there is an adapter for Canon lenses - so this handy little adapter allows me to use the astro cam. It is a little fiddly to get off the lens, you have to put a little pressure on the spring to release, but once you know what to do, it's no problem.

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Reviewed by Liam

Verified Buyer

I recommend this product

Years Experience

3-5

Rated 4 out of 5

Review posted

Good

Easy to use, perfect fit

Was this helpful?

Reviewed by W. L.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Travel

Rated 5 out of 5

Review posted

outstanding

Excellent manufature, fit.... no wobble

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Pentax K Lens to Canon EF-S Camera Adapter

Manual cross-system lens adapter

Pentax K Lens to Canon EF-S Camera Adapter