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#1 AdamKeith

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Posted 16 January 2007 - 10:07 PM

I found while using a J-7 Zoom Control, some Canon HD lenses would slowly drift (zoom) in.

Is there a fix?

Does the ZOE or Stanton Zoom Control all handle HD lens with out a problem?

Regards,
Adam Keith
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#2 Sven Joukes

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Posted 17 January 2007 - 03:06 AM

Hi Adam,
I can only speak for the Zoe III (www.bebob.de/international/zoe-III_eng.html). It has a little screw you can twist in case of lens drift. You just turn it until the zooming stops. I've used mine with plenty of Canon lenses and it performed great with all of them.

Cheers,
Sven
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#3 Jeff Muhlstock SOC

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Posted 17 January 2007 - 08:11 AM

I found while using a J-7 Zoom Control, some Canon HD lenses would slowly drift (zoom) in.

Is there a fix?

Does the ZOE or Stanton Zoom Control all handle HD lens with out a problem?

Regards,
Adam Keith



Adam, This is a long story, been down this road before. The bottom line, J-7 cant handle most of the newer style canon lenses. Zoe III handles it far better as does Stanton. The pot in the J-7 requires a larger "dead" zone then what canon has. The "dead zone" being the nuetral point between zooming in and zooming out, thus the "creep" occurs. Time to retire the J-7. I have tested just about every zoom control made, including Preston's, and I ended up with Zoe III. I have had the J-7 opened up by several techs, including canon folks, no luck, dont waist you time. Good luck.

Jeff
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#4 WillArnot

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Posted 18 January 2007 - 05:07 AM

Hiya Jeff,

Thanks for the info on the Zoe III. I don't suppose the Zoe can hook up to a Preston motor is there? If not, what would you suggest for film lens applications?

Thanks,

Will
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#5 Jeff Muhlstock SOC

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Posted 18 January 2007 - 09:03 AM

Hiya Jeff,
Thanks for the info on the Zoe III. I don't suppose the Zoe can hook up to a Preston motor is there? If not, what would you suggest for film lens applications?
Thanks,
Will

Hey Will,
unfortunately, I have yet to find a good solution for Film style lens, operator controlled zooming. I am still holding my breath for the "BUZ". This intermediate box should allow controllers like ZOE to work with M-1s or other analog motors. (Right Jim B...?) As for Preston, you would be stuck with there zoom control system which I didn?t like very much. I find the pressure sensitive thumb controllers are very difficult to feather when operating a rig. The more analog feel of a large toggle works better for me. Here is a picture of my Zoe III with the rubber microphone clip mod. Easy on and off and very comfy.

Attached File  zoe.pdf   12.63KB   50 downloads
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#6 Jeff Muhlstock SOC

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Posted 18 January 2007 - 09:19 AM

[url=http://www.bartechengineering.com/]

Sorry Jim, I see the BUZ looks ready to go, I will be calling for one. Will, this is the solution I have been waiting for.

Jeff

Attached Files

  • Attached File  buz.htm   9.58KB   29 downloads

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#7 Jeff Muhlstock SOC

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Posted 18 January 2007 - 09:36 AM

Ok, so now after reading Mr. Bartel's info on the BUZ, I see that a zoom motor is needed for "optimum" performance. So the next obvious question is, will M-One make a zoom motor for this application? What can we expect with standard focus motors? Jim Bartel, it?s your turn to chime in. This is a long awaited system.

Jeff
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#8 Dave Wowchuk

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Posted 18 January 2007 - 10:41 AM

Hey Jeff,

Thanks for the picture of your Zoe with the mic clip ... I was just thinking about another way to connect mine without having to clamp it onto the foam grip.

I love this forum ... so many good ideas! Thanks guys.

Dave
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#9 JimBartell

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Posted 18 January 2007 - 12:47 PM

Ok, so now after reading Mr. Bartel's info on the BUZ, I see that a zoom motor is needed for "optimum" performance. So the next obvious question is, will M-One make a zoom motor for this application? What can we expect with standard focus motors? Jim Bartel, it?s your turn to chime in. This is a long awaited system.

Jeff


Sorry. I've been working about 10 hours a day 6 days a week trying to keep up with BFD demand (152 ahipped last year, 12 already this month) so I haven't been in any great hurry to push the BUZ and add to my work load. But it is available and I will happily take your orders.

When using the BUZ with a non-zoom motor the motor is running open-loop, which means when you go below a certain mimimum speed it just stops. With a zoom motor the minimum speed is very slow, almosy imperceptible. So using the BUZ with a focus motor makes it similar to the rocker focus built into video cameras, useful for adjusting zoom but not for a long, slow zooms in shots.

I have discussed making a zoom with Don but the demand has been very small so far (only six sold last year), and with the large number of Heden M26T's around we didn't see a burning need. If the demand does increase we will very seriously look into making one.

Jim "what does it profit a man to gain the whole world and not have time to play with his Xbox?" Bartell
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#10 AdamKeith

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Posted 18 January 2007 - 09:56 PM

Jeff,
Thanks for the advice. Zoe III looks like the way to go.

Regards,
Adam Keith
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#11 Chris Konash

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Posted 18 January 2007 - 11:11 PM

Adam,

How's everything? You can borrow my ZoeIII for as long as you like to try it out. I also have the Libec control if you want to take that for a spin. Let me know anytime if you want to shoot over and pick it up.

Chris Konash
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