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[dgwarmyman]

none

[ebiggs1]

The PZ-E1 Power Zoom Adapter is compatible with the Canon EF-S 18-135mm f/3.5-5.6 IS USM lens, only!

I don't think they are out yet anyway.  It is designed for video so I have no interest in one.  Maybe one of the other forum people can enlighten us more.

[kvbarkley]

If you look at the picture it looks like the PZ-E1 has to make contact with the lens to communicate with it. We have no idea about Canon's plans, but I would guess that most proffessional lenses going forward that might be useful for video would be compatible.

[TTMartin]

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@kvbarkley wrote:

If you look at the picture it looks like the PZ-E1 has to make contact with the lens to communicate with it. We have no idea about Canon's plans, but I would guess that most proffessional lenses going forward that might be useful for video would be compatible.

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I disagree, the device appears to be targeted at the amateur film maker, not the professional. I would not expect any lenses other than the current STM zoom lenses to be upgraded for compatibility. 

[kvbarkley]

I will admit it does look pretty hokey with it connecting (by friction!) to the existing zoom ring and all. But does an amateur really need a focus puller?

[TTMartin]

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@kvbarkley wrote:

I will admit it does look pretty hokey with it connecting (by friction!) to the existing zoom ring and all. But does an amateur really need a focus puller?

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It is not a focus puller, all the Dual-Pixal AF cameras and STM lenses already do that.

It is an electro-mechanical Zoom Puller. And yes in my opinion it is intended for amateur videographers. 

[RobertTheFat]

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@TTMartin wrote:

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@kvbarkley wrote:

I will admit it does look pretty hokey with it connecting (by friction!) to the existing zoom ring and all. But does an amateur really need a focus puller?

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It is not a focus puller, all the Dual-Pixal AF cameras and STM lenses already do that.

It is an electro-mechanical Zoom Puller. And yes in my opinion it is intended for amateur videographers. 

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One problem with making such judgements is that these days it's about as hard to place videographers on the pro/wannabe/amateur/duffer spectrum as it is to place photographers.

[kvbarkley]

Here is more info:

http://www.learn.usa.canon.com/resources/articles/2016/eos-80D/eos80d-nano-usm.shtml?categoryId=12

[ebiggs1]

"...  the device appears to be targeted at the amateur film maker, not the professional"

I agree with Mr Martin.

"... in my opinion it is intended for amateur videographers."

[TTMartin]

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@kvbarkley wrote:

Here is more info:

http://www.learn.usa.canon.com/resources/articles/2016/eos-80D/eos80d-nano-usm.shtml?categoryId=12

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That is about the focus motor in the lens not the Canon PZ-E1. The Canon PZ-E1 attaches to the lens to allow electro-mechanical zoom of the lens.

The new nano-USM focus motor appears to be a refinement of the existing STM focus motor, which itself was a refinement of the original micro-USM focus motor.

A micro USM (Ultrasonic Motor) provides fast, silent AF and full-time manual focusing.

STM lenses are named after the Stepping Motor, which lets the lenses focus smoothly and quietly when...

Canon L lenses use ring type USM focus motors which are required to move the heavier lens elements smoothly and quickly.