Haoge Lens Mount Adapter for Pentax K PK Mount Lens to Canon EOS EF EF-S Mount Camera

Locks the lens in tight and no wobble when attached to my Canon T2i. My only problem is that when I want to remove it from the lens, I have to manually push the lock spring back with a jewler's screwdriver and twist the adapter. Other than that, it is easy to work with an appears to be well made. If you are going to be using it on multiple lenses, just be aware that it will take time to switch the adapter from one lens to another.

I bought a bunch of adapters to mount some vintage lenses to a new DSLR, this being one of them. My overall conclusion - they all work well (you preserve infinity focus here), BUT they are all extremely tight - they can mount semi-permanently over a lens. I have tons of Pentax lenses, so I try to switch this adapter between them - if you do so, you can cut your fingers if you twist the adapter off of a lens with too much force, so use a shirt or some other cloth to wrap up your hands before twisting to get a better (and safer) grip.A note for this adapter in particular: you must modify your Pentax lenses before you can mount on full-frame DSLRs (5D series - Idunno about the 6D series). The long aperture levers and plastic guards that extend from most Pentax lenses will hit the mirror of the camera and trigger camera errors, or (over time) can break that mirror. Cut off the plastic guards and dremel down (or use pliers and pull off) the aperture levers before using this lens on full frame. The exact type of surgery will vary with each lens, but is generally very doable (~5-10 minutes of work), and the resulting lens is still usable with Pentax DSLRs (albeit in stop-down mode only, like an old M42 lens).

Works as intended. It does take time switching between lenses but that is part of it, get a pentax if you dont want to hassle. It works perfectly on my aps-c canon but my lens bayonet hits the mirror on my full frame canon 6d mark 2. Nothing a dremel cant fix.

Works perfect, a little difficult to install if you never used this type of mount before but other than that no problems.

This is a well engineered, well built product. Does the job for which it was designed.

I put a old lens but it was loose for the Canon. Very bad part.

Perfect exactly what i needed, get one for each lens and when attaching use a lens cover as extra grip this helped out a lot when attaching the adapter to the lens. Helps avoid scraped hands because the metal is sharp.

Fits super tight and is pretty hard to get out of the camera mount, but I don't know if there's a way around that. Seems to work fine.

To those who like it, adapting old manual lenses is a very charming past-time. I had an old 70-300mm f/3.5 with Macro, got this adapter and took some of my favourite shots of my career. Excellent build quality. No warp. Solid click in, on both sides.

I have a canon 60D. this adapter ring technically attaches old lenses but it can shift left to right and up and down. The locking mechanism has a lot of play and is awkward to use.

It’s not compatible with full frame camera, I bought it for my Pentax 50mm f2 and I mounted on my 5d 6d and 5d mark iii, none of them worked. Maybe it works on cropped sensors but definitely not on full frame!!

Perfect exactly what I wanted

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