topic Re: Eos 5D mark ii lens adapter in Camera Accessories

EOS 5D Mark II lens adapter for non-EF lenses

carliesw98 — Tue, 18 Feb 2025 14:33:24 GMT

Hello!
I have a eos 5D mark ii and was wondering if there is a lens adapter to make it so I can use other lenses? Or can I only use EF lenses?

Re: Eos 5D mark ii lens adapter

kvbarkley — Sun, 16 Feb 2025 06:15:56 GMT

I am not sure what "other lenses" you are talking about but the EF lens lineup is one of the best in the world, You can choose from Canon, or there are a lot of third party options, too.

Re: Eos 5D mark ii lens adapter

AtticusLake — Sun, 16 Feb 2025 08:25:27 GMT

The EF lens mount (which your camera uses) has a flange distance of 44 mm. This is pretty long, and doesn't leave much room for an adapter from most other lens mounts. There are exceptions; for example, you could get an adapter to use PL lenses on your camera. These are generally big, heavy, all-manual cinema lenses, so not likely what you want.

Mirrorless lenses, like RF, RF-S, EF-M, Nikon Z, Sony E and FE, Micro Four Thirds, etc., can not work. Generally you're safest sticking with EF lenses.

If you want to know more about lens compatibility, I wrote an article about that: https://moonblink.info/MudLake/gear/lenses

Re: Eos 5D mark ii lens adapter

ovdmse — Sun, 16 Feb 2025 10:39:11 GMT

You can use adapters for EF-1,2,3 bayonets, but everywhere it will be manual optics.:
1) M42 - a huge amount of inexpensive manual optics (easy to find).
2) Pentacon Six - medium format lenses (easy enough to find)
3) Early Hasselblad mount - - medium format lenses (hard to find)

Re: Eos 5D mark ii lens adapter

ovdmse — Sun, 16 Feb 2025 10:50:46 GMT

If we talk about automatic focus, then the Sigma Art fix line is worthy of attention. The rest is very far behind Canon on EF (tamrons, sigma).

Re: EOS 5d Mark II lens adapter

justadude — Sun, 16 Feb 2025 15:32:53 GMT

If you go to B&H and search Lens Adaptors for EF you will find 167 different adaptor plates. I use a handful of these for different lenses and they work well. I mostly use my Pentax film lenses, or my older M42 lenses, but you can find adaptors to use Nikon F lenses, Sony A lenses, Olympus, Contax Zeiss, and many others. While some of the third party lenses are fair to use, others are very unique and give a different look than you can get from Canon EF lenses. The Helios 44M lenses being a perfect example.

The only thing you won't find are adaptors to use mirrorless lenses on a DSLR. That's impossible to do.