FotodioX Mount Adapter with Focus Confirmation Chip for Pentax K-Mount Lens to Canon EF-S-Mount Camera

FotodioX Mount Adapter with Focus Confirmation Chip for Pentax K-Mount Lens to Canon EF-S-Mount Camera

FotodioX Mount Adapter with Focus Confirmation Chip for Pentax K-Mount Lens to Canon EF-S-Mount Camera


Product Highlights

  • PK-Mount Lens to Canon EOS Camera
  • Built-In Focus Confirmation Chip
  • Supports Infinity Focus
  • Anodized-Aluminum Construction

Camera Body Mount: Canon EF-S

Canon EF-S Fujifilm X

Special Order

Micro Four Thirds Nikon 1

Special Order

Olympus 4/3

Special Order

Pentax K

Not available with current selections

Sony E

Type: Standard


Not available with current selections

Pro Shift

Not available with current selections


FotodioX PK-EOS-DC overview

  • 1Description

Make use of your existing Pentax K-mount lenses on your Canon EF-S-mount camera with this Lens Mount Adapter with Focus Confirmation Chip from FotodioX. Precision-crafted out of hardened anodized aluminum, the adapter provides a secure and solid camera-to-lens connection. Additionally, it supports focusing to infinity.

UPC: 812759012582
In the Box
FotodioX Mount Adapter with Focus Confirmation Chip for Pentax K-Mount Lens to Canon EF-S-Mount Camera
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    FotodioX PK-EOS-DC specs

    Camera Mount Canon EF-S
    Lens Mount Pentax K
    Material Aluminum
    Packaging Info
    Package Weight 0.1 lb
    Box Dimensions (LxWxH) 3.0 x 3.0 x 0.7"

    FotodioX PK-EOS-DC reviews

    Mount Adapter with Focus Confirmation Chip for Pentax K-Mount Lens to Canon EF-S-Mount Camera is rated 4.1 out of 5 by 24.
    Rated 3 out of 5 by from Good cheap solution if you know the quirks This is a good way to get some use out of your older Pentax lenses, but it could definitely benefit from the inclusion of some documentation. For instance, and some other people have had confusion with this, it can be difficult to figure out how to remove the adapter from the lenses. To remove the adapter, you need to depress a small metal tab on the inner ring and before you try unscrewing it. It can be quite difficult to remove. Also worth mentioning is the fact that the the aperture lever (I'm referring to the small lever which sticks past the adapter and holds the aperture open) on the older SLR lenses has a high likelihood of scraping/interfering with the mirror of your camera. It's best to bend or completely remove the lever from a lens you plan to use, otherwise you may risk damaging your camera or being stuck shooting at the widest aperture. Other than those undocumented kinks, this adapter is a good, cheap way to reuse old K-mount lenses.
    Date published: 2016-08-04
    Rated 4 out of 5 by from To Jawn Jawn In your case, may I suggest you look on the underside of the Ring that Goes into the Canon Camera. There is a Clip If you back of the ring a tad and depress the Clip you will be able to remove the Adapter. Sorry, No chance to reply in Review Pages. Hope you find this helpful. I found the Ring a bit tight too.
    Date published: 2016-03-02
    Rated 2 out of 5 by from Single Use Product I bought this for a few older pentax lenses I have. I wanted to be able to mount them on my Canon Rebel and add a few lenses to my arsenal. Here's the hitch: I put it on one lens, and on that lens it will stay forever. It works! It definitely works. But it only works for one lens, because it doesn't look like I will ever be able to remove it from that lens. In the meantime, I can't use that lens on my Pentax anymore. On top of that, the shipping for this product took about four weeks. I waited that long to take one lens out of commission. * I really wanted to like this product, as it would have made my life a lot easier, and a lot less expensive when it comes to lens purchases. I'm left off more or less where I was before, with the exception that my pentax lens now works only on my Canon, now without autofocus capabilities.
    Date published: 2016-02-04
    Rated 4 out of 5 by from Great to use old, favorite lens Although there is a long learning curve, I am so happy to be able to use my old film camera lens on the Canon DSLR.� Thank you!
    Date published: 2018-01-03
    Rated 5 out of 5 by from It works! I have a Pentax 70-300mm that I haven't been able to use in 20 years. Got the Canon adapter and bam.
    Date published: 2016-01-12
    Rated 5 out of 5 by from FotodioX Adapter for Pentax K-Mount Lens to Canon EF-S Before I purchase this adapter, I was a little bit afraid to get it because I read some people complain it was a little wobbly when it was mounted to a lens. But it fits perfectly with my Pentax-M 28mm f/2.8 and won't move at all. I can't say any other combinations than my Pentax-M to this adapter, but I can say at least this combination works out perfectly. My only complaint is it works only with APS-C cameras, but I bought this just for my APS-C cameras anyway.
    Date published: 2016-02-28
    Rated 4 out of 5 by from Pentax K-Mount Adapter for my Canon EO-S Camera Nice built quality. Mounting the FotodioX adapter on old Pentax lenses is easy, but removing it is a tricky�endeavor. There is a small metal�tap inside the ring you have to depress while twisting at the same time. It is not always easy or convenient. It would be easier to leave it permanently on your old Pentax lenses, so that way you can mount it on your Canon camera body without the hassle. Buy an extra adapter for each of your old Pentax lenses.
    Date published: 2017-12-03
    Rated 4 out of 5 by from Functional This product allows me to use my Pentax lenses with my Canon Rebel. I'm very pleased to be able to do that. The downside is that it is a bit cumbersome to change from one lens to another. It takes a bit of work to get the mount back off of the lens. The metal latch is a bit stiff at first and it took some effort to push it back so that it would let go. It is getting easier, but I don't think it will ever be a quick process.
    Date published: 2016-04-15
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