topic Re: C100 mkII Face AF in Professional Video

EOS C100 Mark II Face AF with Prime Lenses

virmagnavi — Fri, 03 Mar 2023 14:02:24 GMT

Hello! Could I use my Canon STM 24mm and 40mm for Face AF? I have 1.0.5 firmware but still it not working. What problem with it? Why must I use only zoom lenses?

Thank you.

Re: C100 mkII Face AF

Tim — Tue, 14 Aug 2018 03:51:23 GMT

Hello virmagnavi,

Those two lenses will not enable face detection AF within the EOS C100 Mark II. Technical design specifications are at the behest of Canon engineers and are not decided at the technical support level. We are however sorry for any inconvenience that this may cause you.

Lenses that support face detection AF:

- EF 24-105mm f/3.5-5.6 IS STM

- EF-S 55-250mm F4-5.6 IS STM

- EF-S 18-135mm F3.5-5.6 IS STM

- EF-S 18-55mm F3.5-5.6 IS STM

- EF-S 10-18mm F4.5-5.6 IS STM

Re: C100 mkII Face AF

80Doesthejob — Tue, 27 Nov 2018 22:30:06 GMT

Are there any third party lenses that work with the face af? specifically, sigma EF-S 17-70, tokina EF-S 11-17?

Also, do the prime EF-S canon lenses (50mm 1.8 & 24mm 2.8)?

thank you!

Re: C100 mkII Face AF

Tim — Thu, 11 Apr 2019 23:22:51 GMT

80Doesthejob,

We are not aware of third party lenses that are compatible with this feature as those are not tested by Canon.

Only the STM versions of these lenses are listed for compatibility with this feature.

Re: C100 mkII Face AF

felicity1 — Tue, 28 Feb 2023 03:47:29 GMT

Hi
I wondered if there might be an updated list of Face Assist AF compatible lenses please?
I'm looking at buying a used Canon C100 Mk2 but many of the lenses listed above are no longer being sold and have been superceded.
Thanks!

Re: C100 mkII Face AF

shadowsports — Tue, 28 Feb 2023 13:52:05 GMT

Greetings Felicity1,

This thread is almost 6 yrs old. Since the C100 MKII is super 35, Canon primarily recommends EF-S lenses.

Its true that one by one, many of these lenses are or have been discontinued.

The CN-E 70-200mm T4.4 also supports Face Detect, but is pricey and for that money I'd consider a new product.

Other lower cost alternatives:

EF 70 ~300 II USM

EF 16 ~35 f2.8 III

Latest version of FW available for the camera as of this writing is v1.0.5.1.00

Prime lenses may not be the best choice for face detect unless the subject is stationary and not moving.

I don't know what your budget is or if you own any lenses currently. It sound like you don't and are shopping and considering options.

What you may want to do is start your own topic and tell us more about what your planned use for a video camera is. It should include a budget and also let us know if you own any other gear. The camera you are considering is 11 yrs old. Thats not necessarily a bad thing, but you may be able to buy something newer with the features you are looking for at an attractive price.

Re: C100 mkII Face AF

shadowsports — Wed, 01 Mar 2023 03:34:36 GMT

This list should also be helpful.

What lenses are compatible with Dual Pixel CMOS AF? (EOS C100 Mark II) (custhelp.com)

Re: EOS C100 Mark II Face AF with Prime Lenses

Sardar — Fri, 19 Sep 2025 16:54:42 GMT

I own the Canon EF-S 18-135mm USM lens, and face detection autofocus works with it even though its focus motor is not STM. I have tested two other lenses, but face detection was not compatible with them: the Canon EF 50mm f/1.8 STM (despite having an STM focus motor) and the Sigma 18-35mm f/1.8 DC HSM ART - Canon EF-S. I am not sure whether the Sigma lens's focus motor is STM or USM. I wish the Sigma f/1.8 lens were compatible with the face detection system. It is worth noting that I tested these lenses with my Canon EOS C100 Mark II camera.

Re: C100 mkII Face AF

Sardar — Fri, 19 Sep 2025 16:54:54 GMT