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Posts
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Posts posted by Benjamin Treplin
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Here we go again. Place your bets.
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Paul,
You're right. I asked my distributor and he said 7A max.
How does or better should a Li-Ion battery electronics measure to protect the cells. Voltage or current or both?
When I tested my batteries with 435 I had a voltage of 32V at start up it went down to 25V somewhere between 120 fps and 150 fps and back to 28V at 150 fps.
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This is the ONLY lithium ion battery currently manfactured that will do that.
Paul,
I'm not quite sure this is true. I own 130Wh Li-Ion batteries from SWIT and they kick a 435 to 150fps. So I guess they take 10 Amps. Correct me if I'm wrong.
Best
a lot of quotes in here.
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PAG MC124 fast charger + PAG CMS software for sale.
Charges NiCd batteries. Can be upgraded for NiMH.
In Good condition. I'm asking ? 850,-
Not 780,- Sorry I typed it wrong.
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Something new here. Any comparison happened yet?
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Purpose!, purpose!, purpose!
Did someone said Workshop?
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Imran,
you are standing right on top of it.
You should start with the Forum archives. It's in bits and pieces but I think it gives you a good overview about gimbal maintenance.
Hope this helps.
Alec, Peter, Jamie and Eric thanks for the input.
Best
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Thanks Jamie and Peter,
did you ever consider this magic ACF-50?
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Alec,
I was searching the forum about gimbal service and stuck on yours and Will?s posts.
Time passes quickly.
So Will what do you pour into your gimbal?
What about leaving the gimbal bearings with out any lube? The bearings turn a amazingly long time when dry.
IMHO the forces inside the bearings don?t get close to there design specs. Cooling down is not needed. The parts don?t move very much except for switches and whip pans.
An advantage could be that sand or dust could fall off the bearing easily.
Thoughts, suggestions?
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Chrosziel has a replacement for the Sony-V-mount tripod plate under the Camera.
It is rigid enough to work with a remote focus like Bartech or Preston (15mm) and it is still compatible with your existing tripod plate.
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Hi,
IMHO there is a lot to learn about carbon fiber and other materials in bicycle design
http://www.mse.cornell.edu/courses/engri111/fiber.htm
http://calfeedesign.com/performance.shtml
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Hey Will
maybe this is a solution:
You can get your needed 12V out of two small Li-Ions used on Sony DCR Camcorders.
http://www.transvideointl.com/pdf/DV%20Backs.pdf
Hope this helps
Best
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Snake Eyes - Larry McConkey
Great stairs
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I always calibrate from the infinity to the close focus marks. IMHO it is not possible to reproduce the exact tension like a autocal remote focus. It is not necessary to hit the exact same mark on the lens while inserting the gear. It should be close to the middle of the lens range of travel, to spread the resolution equally. This way I had very reliable results.
Sorry, for misreading your question.
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Depends on the lenses you use.
With video lenses this is maybe an option but with lenses for 16/35mm or cine HD it is not. Every lens has it's own markings. Zeiss use 7 different scales for every focal length on there standard lenses, Cooke makes a unique one for every single lens.
Hope this helps.
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yeah, u can put the bubble any which way wherever u like. I ve put it directly underneath my post because....
on paper (maths) the closer it is the the centre of rotation the less it will suffer from centrifugal forces when whip panning. ..... i.e. the further the sensors are away from the middle of spin the more they ll be tricked to give a false reading
Thomas,
now I'm a bit confused, you could place the bubble anywhere you want, given that it is compensating G-forces.
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It has more sensors in it to measure and calculate against G-forces.
Hi Thomas,
does it mean this level is only "sensitive" to gravity and is completely ignoring G-forces?
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Hey folks,
over 240 views and only 12 votes? Where are all the op's with a back mounted harness? There have to be more than 12.
Come on, this is not an election only a poll.
I had a chance to see and fly Garrett's new Klassen front mounted back mounted vest (don't know a better way to describe it) at the Tiffen party the other night. Not owning a back mounted harness (and only having flown one a few times) it's hard for me to say if I prefer the back/front mount over the back mount. What I CAN say is that I like it! I think it takes the best of both syles of vest/harness and combines them. I'm looking forward to hearing what operators that already own a backmounted harness think of it. I believe Garrett's vest will be at the Steadicam Guild get-together tonight for any attendees to try. Plus, there's free food tonight, which is another reason to go.Any experiences? Comments are really appreciated.
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Hi Stephen,
thank you for the photo.
Hi Howard,
What kind of diodes do you use? How about voltage drop of these diodes.
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Hi Flemming,
Sorry this was the wrong link. Not enough power.
Here is another one:
Ron,
the 420 doesn't need the adapter. It's possible to take apart the "TV cradle" and make a custom cable with the plug that goes in the AV 420.
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Hi Flemming,
how are you?
Here is a link http://www.vsholding.com/
Products -> DC/DC converters by Peak
Best
Benjamin
Anton/Bauer PROFORMER batteries
in Batteries/Power
Posted
Paul,
is it possible to calculate the applied current using the voltage drop of the battery?