topic Re: R5 Mark II using both AF motors in RF 600mm f4 in EOS DSLR & Mirrorless Cameras

R5 Mark II using both AF motors in RF 600mm f4

Shmukko — Sat, 03 Aug 2024 13:26:27 GMT

Hello everyone,
so far only the R3 (and now the R1) could use both AF motors of the RF 600mm f4. The reason for this is that the batteries of the smaller series are too weak.
What is the situation with the R5 Mark II? There are new LP-E6P batteries, which can also supply more power.
Does anyone know anything about this?

Re: R5 Mark II using both AF motors in RF 600mm f4

shadowsports — Sat, 03 Aug 2024 13:46:35 GMT

Greetings ,

I'm not aware of any modern Canon bodies that use a smaller capacity/size battery that is unable to power a lens with dual focus motors. Using the R8 as an example, it has the ability to power both focus motors in a dual motor lens. For everyone's benefit, can you please post an example where this applies?

The RF600 f4 manual makes no mention of this either.

rf400f28-600f4lisusm-im-eng.pdf (c-wss.com)

Nor does the RF 200-800

rf200-800-f639isusm-im-eng.pdf (c-wss.com)

Re: R5 Mark II using both AF motors in RF 600mm f4

Shmukko — Sat, 03 Aug 2024 16:40:46 GMT

It's called Dual Power AF:
https://www.canon-europe.com/pro/stories/vladimir-rys-super-telephoto-lenses/

Re: R5 Mark II using both AF motors in RF 600mm f4

shadowsports — Sat, 03 Aug 2024 22:07:36 GMT

Fun facts, some of which remain unverified.

The LP-E19 is 10.8v, I saw a rumor the LP-E6P was going to have higher voltage, but I'm not sure about that. Higher mah seems more likely. (I haven't seen the specs officially published yet).

The RF mount has 12 pins. If a RF lens has dual motors both are driven regardless of the body or battery size. Dual Power AF refers to the communication speed, not the number of motors that are driven at the same time. The article states that a larger battery makes (both) motors perform faster. So to clarify, a body that uses a smaller battery does drive both motors, but not with the same communication performance of a body that uses a larger (more powerful battery). Hope that clarifies things. 😃

**Corrected voltage for LP-E19

Re: R5 Mark II using both AF motors in RF 600mm f4

Shmukko — Sat, 03 Aug 2024 17:25:55 GMT

Thanks for the clarification! Does this mean that the R5 Mark II uses the motors at full performance?

Re: R5 Mark II using both AF motors in RF 600mm f4

Shmukko — Sat, 03 Aug 2024 21:20:32 GMT

Ah and isnt't the LP-E19 at 11,1V?

Re: R5 Mark II using both AF motors in RF 600mm f4

shadowsports — Sat, 03 Aug 2024 22:06:04 GMT

When I search I see three different voltages listed. I'll get something definitive in a moment

Images I saw showed 10.8 volts 2700 milliamps. That's what I get for trusting Google results LoL

Watson makes a 3500 milliamp version.

Re: R5 Mark II using both AF motors in RF 600mm f4

wq9nsc — Sat, 03 Aug 2024 22:03:59 GMT

LP-E19 is nominally 10.8V as marked, this one just came out of the charger and is about to go back into my 1DX III and shows 11.1V no load on my HP lab DMM.

Rodger

Re: R5 Mark II using both AF motors in RF 600mm f4

kvbarkley — Sat, 03 Aug 2024 23:18:11 GMT

The typical answer when asked about a battery's no load voltage is "yes". It can have quite a range.

Re: R5 Mark II using both AF motors in RF 600mm f4

cbusa783 — Wed, 14 Aug 2024 14:33:15 GMT

Has anyone had a chance to test whether the R5 II has the capability to take advantage of the faster focus (Dual Power AF) available on the RF 400 & 600 lenses? Or thoughts on how to test? I realize there were a number of posts about the battery but the posters seemed to be unaware of the function available in those two lenses when mounted on an R3 body.

Possibly the lens senses if there is sufficient power available from the camera body to enable the dual power feature.

Thoughts?

Thank You

Re: R5 Mark II using both AF motors in RF 600mm f4

shadowsports — Wed, 14 Aug 2024 14:55:07 GMT

Actually it was the way his question was posed. The subject line of the OP's original post/question was modified by Danny/Mod once we established the question was in regards to Dual Power AF. The original post asked if the R52 could run both AF motors? Yes it does. Will it run in Dual Power AF, (high speed communication mode) is not published yet.

Re: R5 Mark II using both AF motors in RF 600mm f4

cbusa783 — Wed, 14 Aug 2024 14:58:10 GMT

Hi Rick,

Thank you for the reply. I don't consider the OP's question answered. The assumption that any camera body supplies dual power does not match what Canon Europe published which states that the function is only available when using the R3 body. (https://www.canon-europe.com/pro/stories/vladimir-rys-super-telephoto-lenses/)

"The Canon EOS R3 is the first EOS R System camera that can take full advantage of lenses with Dual Power AF, thanks to its more powerful LP-E19 battery pack. "You need more voltage to drive the motor, which would have had too much impact on the battery life of earlier EOS R System bodies," explains Mike."

Cheers

Charlie

Re: R5 Mark II using both AF motors in RF 600mm f4

Hazel_T — Thu, 15 Aug 2024 22:55:52 GMT

Hi cbusa783,

Since the EOS R5 Mark II hasn't been released yet the information available on it is currently limited. At this time there isn't a Dual Power AF specification listed for it. Once the camera is released the product page HERE will be updated with the camera manual.

Re: R5 Mark II using both AF motors in RF 600mm f4

cbusa783 — Wed, 21 Aug 2024 14:37:24 GMT

Hi Hazel_T

I waited until the camera was shipping to reply, thanks for the reply and link. What should I look for in the tech. specs? I looked through the R3 specs but can't find mention of Dual Power Af in the R3 Specs, nor the RF 400/600 specs either.

Cheers

Re: R5 Mark II using both AF motors in RF 600mm f4

shadowsports — Wed, 21 Aug 2024 15:43:53 GMT

Greetings,

Its not answered, because the information has not been officially published yet. As I said, the post's subject was modified. There is no assumption. Both motors are powered. However, Dual Power AF (high speed communication) which is different than "are both motors driven" has not been established yet.

The OP interpreted "are both motors driven" as "dual power AF". Which is still not known. The OP marked the post as solved. Technically his question about both motors being powered was answered.

I do not believe Canon has officially posted this performance specification for the R52 as Hazel_T mentioned. I've searched the manual which still isn't linked from the R52's support portal and there is no mention of Dual Power AF.. so until Canon posts this specification on the product's web page or manual, support for Dual Power AF for this body is still unknown.

Re: R5 Mark II using both AF motors in RF 600mm f4

John_Q — Thu, 22 Aug 2024 00:38:34 GMT

Hello cbusa783,

The [Power Focus (PF)] feature is described in the manual for the RF 400mm F/2.8L IS USM / RF 600mm F/4L IS USM manual on page 15. There is also a [Focus Preset] option described on page 12. I believe these two things are what's being discussed here and sort of combined. You can access the manual for those lenses HERE for reference.

Re: R5 Mark II using both AF motors in RF 600mm f4

shadowsports — Thu, 22 Aug 2024 04:49:16 GMT

Greetings,

I looked at the R3's manual also, but Dual Power AF is not listed in it as well. It's a premium feature, and while possible, I'm not going to speculate on its inclusion with the R52.

I think this would be a very good question for Canon support.

We also have excellent support resources who we can check with. I'll see about making an inquiry.

Re: R5 Mark II using both AF motors in RF 600mm f4

cbusa783 — Thu, 22 Aug 2024 14:22:52 GMT

Hi John_Q,

Thanks for looking for additional information. The Power Focus is different, it allows the knurled ring to be used as an electronic manual focus. The benefit is consistent focus speeds either fast or slow.

Cheers

Charlie

Re: R5 Mark II using both AF motors in RF 600mm f4

cbusa783 — Thu, 22 Aug 2024 14:25:13 GMT

Hi Rick,

Thanks for checking with Canon support for the answer. I am hopeful the feature is supported by the R5-II, even if it was only available while using a grip. It would be a good excuse to buy a grip too 🙂

Cheers

Charlie