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Chroszier can 100


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#1 G. Grammatikos

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Posted 04 December 2015 - 04:16 AM

Any reviews???
Sorry cdm 100 (iPhone writes can)

Edited by G. Grammatikos, 04 December 2015 - 04:18 AM.

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#2 Tony Gutierrez

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Posted 08 January 2016 - 08:37 PM

Hi,

 

I am not a Steadicam operator but I've been a focus puller for over 20 yrs.  I have a CDM-100 motor.  It's one of my three motors with my MagNum focus system.  So far, I have had no problems.  It's EXTREMELY small and lightweight. 

 

I plan on going to Keslow next week and testing that motor on a Ang 24-290.  I'm happy to let you know my thoughts, if you want.


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#3 Nate Weaver

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Posted 09 January 2016 - 12:50 PM

I'm curious about it's torque output. It seems like it's probably just a off the shelf Faulhaber or Maxon motor with a built in encoder, but without any sort of gear reduction. And then put in a CNC-ed can. So fast probably, but without much torque?

 

Maybe the state of the newest motors from those vendors allows for a design that was previously passed over?

 

Even if it's not the strongest motor around, at it's price of $900 and change I'm sure it has it's uses.


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#4 Nate Weaver

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Posted 12 January 2016 - 08:33 PM

I picked up some stuff at Abel today and they had a demo Magnum system on the floor to play with. With a CDM-100 motor.

 

It was initially setup with the CDM on the iris on the demo camera, but I swapped everything out to try to motor on focus. Lens was new Canon.

 

Well. It's not going to knock anybody's socks off for speed or torque. It wasn't fast, and it wasn't powerful. It is light, small, and cheap though. Seems to me a great backup motor, or, maybe the perfect iris motor.

 

I'd say it has a reason to exist.


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#5 Tony Gutierrez

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Posted 13 January 2016 - 02:22 PM

I picked up some stuff at Abel today and they had a demo Magnum system on the floor to play with. With a CDM-100 motor.

 

It was initially setup with the CDM on the iris on the demo camera, but I swapped everything out to try to motor on focus. Lens was new Canon.

 

Well. It's not going to knock anybody's socks off for speed or torque. It wasn't fast, and it wasn't powerful. It is light, small, and cheap though. Seems to me a great backup motor, or, maybe the perfect iris motor.

 

I'd say it has a reason to exist.

 

What focus system did you test the motor on?  A MagNum or a Preston? 

 

I went to Keslow yesterday and tested the CDM-100 motor on a Angenieux 24-290 on an MDR 2 and MDR 3 as well as the MagNum.  The motor is just as fast as a Preston motor on the focus ring on that lens.  And I'll also ad that the motor was MUCH faster on the MagNum than on the preston with either the MDR 2 or 3.  I also compared it to a Betz and a Heden motor and it had the same responsiveness and speed. 

 

I will say that for some reason, the motor seemed to chatter a bit on the MDR.  I'm in contact with Chrosziel right now to try and figure out why. 

 

So far, I've found nothing else wrong with this motor.  Especially considering the price point.  $900


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#6 Nate Weaver

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Posted 13 January 2016 - 03:50 PM

 

What focus system did you test the motor on?  A MagNum or a Preston?

 

Like I said in the post, it was a full Magnum system. Full demo system with a Heden 28, a Betz motor, and the CDM.

 

The CDM was much slower than either the Heden or Betz. That's not to say it wouldn't get the job done, for 90% of jobs. 

 

The Canon is not a hard lens to turn, but it does have probably more drag than a 24-290 on focus. I wonder if that's why we're saying different things.


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#7 Tony Gutierrez

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Posted 13 January 2016 - 05:05 PM

My CDM-100 has two sized .08 gears.  Did you by chance have the smaller gear on it?  I tested it yesterday on a 24-290 and it was incredibly fast.  Just as fast as both the Betz and the Heden.  I shot some video of it too.


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#8 Nate Weaver

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Posted 13 January 2016 - 07:33 PM

Just as fast as both the Betz and the Heden.  I shot some video of it too.

 

I'd love to see this. And not because I want to win any argument...it was my hope that the CDM would be fast at the expense of torque. Like I said before, I think the motor has a use case and I'd love to see it succeed. I can't tell you if it was the small or larger gear that was on it.

 

Can you post a Youtube link?


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#9 Tony Gutierrez

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Posted 13 January 2016 - 08:06 PM

Here you go, my friend. 

 

 

 

 

And then this one: 

 

 

In second video, I turned the focus as fast as I could from min to infinity and back.  Just to see how fast it goes. 

 

I have a job in a few days.  I'm hoping to put the motor through it's paces on a real shoot for a day and see how it goes.  I used in on the commercial and had no problems but it wasn't exactly a very strenuous work out, if you know what I mean.  I expect this next job to be a bit more involved. 

 

I feel it's comparable.  I'd very much like to hear your thoughts too.


Edited by Tony Gutierrez, 13 January 2016 - 08:07 PM.

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#10 Marcin Majerski

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Posted 22 June 2016 - 08:11 PM

I also have a CD100- work very good. it fast and silent. 

I can recommend with a clear conscience!:)


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