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Alexa motor bracket for sale


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#1 Herman Verschuur

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Posted 09 November 2010 - 09:23 AM

This high precision, lightweight bracket is designed in the field. The motor bracket is matt black anodized, made from aluminum and the weight is less then a 100 grams.

It fits with a 3/8 bolt on the camera and with the two steel pins on it's side it cannot go anywhere. This makes this a ideal motor bracket, it is very sturdy.
The bracket is 123mm long and has a 15mm diameter.

It is ideal for handheld and steadicam configurations, the motors can be fit on top and there is enough room for the handgrip. You can use it with all prime lenses, the T2.1, Ultraprime, Cooke S4 and Masterprime and stay clear from the Clip-on mattbox like a LMB-5.

Of course you can fit any type of accessory on it, like a video transmitter or motor controller. In the picture the bracket is attached on a Arri Alexa camera but it can be used as well on Arri 235, Arri 416 and Arricam LT & ST.

Shipping is worldwide, payments by banktransfer or Paypal.
You can order this bracket by Herman Verschuur at: herman@cameramarket.eu
More information and pictures you can find on:
http://www.cameramar...bracketpage.htm

Price is 295,- euro

Regards, Herman Verschuur
Attached File  BracketAlexatopA.jpg   524.04KB   214 downloads
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#2 Lawrence Karman

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Posted 09 November 2010 - 10:54 AM

Too expensive.
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#3 Herman Verschuur

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Posted 09 November 2010 - 12:51 PM

Too expensive.

Hi, obviously I do not agree with you.
This is a very precise manufactured piece of equipment, it does look simple but that is the strength of it.
It is very precise aligned and straigth, this is why it is strong enough to have no play when a 24V motor is going full speed on the lens.
Being a focuspuller myself for over 15 years, I know how important good solid brackets are. But thanks for posting anyway.
Herman
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#4 William Demeritt

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Posted 09 November 2010 - 01:21 PM

Forgive me, I've only played with the Alexa once, but out of curiosity: why buy a motor bracket when the camera itself has built in iris rod support? In my recollection, the lower iris rods built into the Alexa body are in good position for motors, but still clear of the handles in handheld configuration.

As far as Steadicam, why replace lower iris rods with a top-mounted rod that raises the center of gravity for the whole configuration?

Also, as for the price, 295 euro or ~$408. I don't know much about machining prices, but let's compare: a 6inch arm post (anodized aluminum) from GPI costs ~$30, and your motor bracket is just under 5 inches. So, you mean the 3/8" 1/2" long socket cap screw plus the aluminum housing it with two small steel pins cost $365 for parts and labor? Since the parts would probably cost $15 max, that must be $350 worth of precision work.
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#5 RonBaldwin

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Posted 09 November 2010 - 04:40 PM

This is nearly identical to Jerry Hill's rod bracket that fits on the side rosettes of arri cameras. I think it will work here with few mods...or it might go right into the rosette on the side if there is one? I have not worked with this camera very many times.
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#6 Brian Freesh

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Posted 09 November 2010 - 05:01 PM

$400 parts, labor AND profit, Will :)

It does seem like something that should be $150-$200 at the absolute most, and $200 would be enough to turn off most, I'm sure. If the machining is being farmed out, then it's probably more expensive for smaller runs. A run of 1000 might come with a smaller price tag per unit than a run of 50. Not defending the price, just thinking out loud.

I don't question the usefulness of it product, just don't think it's $400 useful. I could be wrong.

This rod mounts to the same mount as on all the Arricam, 235, 416 stuff and the 435 handle, so it's useful for more than just the Alexa. Arri makes stuff that fits onto those mounts as well, though it is undoubtedly more expensive than this piece.

Ron, the rosette mount is very different. That's a 6mm screw, this is 3/8". And instead of a rosette, this case a round lip and 2 locating pins. EDIT: The Arri mount has a recessed round center, this attachment does not have the lip to fit into that.
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#7 Herman Verschuur

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Posted 09 November 2010 - 06:02 PM

$400 parts, labor AND profit, Will :)

It does seem like something that should be $150-$200 at the absolute most, and $200 would be enough to turn off most, I'm sure. If the machining is being farmed out, then it's probably more expensive for smaller runs. A run of 1000 might come with a smaller price tag per unit than a run of 50. Not defending the price, just thinking out loud.

I don't question the usefulness of it product, just don't think it's $400 useful. I could be wrong.

This rod mounts to the same mount as on all the Arricam, 235, 416 stuff and the 435 handle, so it's useful for more than just the Alexa. Arri makes stuff that fits onto those mounts as well, though it is undoubtedly more expensive than this piece.

Ron, the rosette mount is very different. That's a 6mm screw, this is 3/8". And instead of a rosette, this case a round lip and 2 locating pins. EDIT: The Arri mount has a recessed round center, this attachment does not have the lip to fit into that.

Hi,

Funny that you are all talking dollars, last time I walked in a store here they only took euro's.
And looking in that perspective it is a lot less.
Reality is that I actually do not make a lot of profit on these things.
They are hand made by a local guy who is a focus puller and I am just trying to sell a couple of them.
I can respect the fact that you think it is too expensive, but keep in mind that however it looks very simple it is actually very precisely machined. It is so straight that the tolerances are at most hundreds of mm's, if not some Mu.

This local guy, Danny van Deventer is famous (or infamous just how you look at it) for his precision.
He is also a technician and I tell you for a fact that he drives the people at Zeiss, Arri and Aaton crazy by being so precise.
But I do appreciate the discussion about it, and maybe I can talk to him to get a lower price so that it is more affordable on your side of the pond. This price is just based on the amount of time he spends on making them.

And thank you Brian for pointing out that the attachment of this item is very different then the rosette attachments.
It is a very useful tool in my opinion, and since I have been focuspulling on big shows for more then 15 years I have a bit of experience in these things I thought.


Best regards, Herman Verschuur

Just to make clear how the attachment looks like here is a picture, it works on all the newer Arri camera's but not on the rosette's
Attached File  bracketarriscrewB.jpg   160.29KB   81 downloads
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#8 William Demeritt

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Posted 09 November 2010 - 07:34 PM

Funny that you are all talking dollars, last time I walked in a store here they only took euro's.
And looking in that perspective it is a lot less.
Reality is that I actually do not make a lot of profit on these things.


I brought up cost as a final point because the preceding two points are more important to me. We weigh cost against usefulness and determine if what we perceive as excessive cost is worth it, considering the benefits.

- How does this device outperform the Alexa built-in iris rods?
- What does it do that those rods do not?
- How is it "ideal for handheld and Steadicam configurations"? (like I said, why is it ideal to mount the lens motors at a top-most point on the camera, raising the center of gravity further from my gimbal?)

To me, if there's a fatal flaw in the Arri Alexa that this device saves us from, then a 295 euro price tag is justified.
If this is just a backup device in the event the Alexa's iris rods, and my dovetail lens motor support rods, don't fit the bill, then the price is harder to justify.

I can appreciate that the individual making these has a dedication to quality and precision that rivals none, but I don't yet see the connection that makes me reach for my wallet.

I think I started looking at it in dollars, because that's where my currency is being converted from (at an additional fee).
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#9 Brian Freesh

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Posted 09 November 2010 - 09:11 PM

I've seen people use accessory rods like this for all sorts of reasons, often specific to their particular shooting situation.

One great point I've heard for steadicam is if you are shooting low mode, you get that much more clearance off the ground. Though it should be noted, now that you won't be hitting the rods first, you will be hitting the lens first.
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#10 Eric Fletcher S.O.C.

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Posted 10 November 2010 - 03:06 AM

$400 parts, labor AND profit, Will :)

It does seem like something that should be $150-$200 at the absolute most, and $200 would be enough to turn off most, I'm sure. If the machining is being farmed out, then it's probably more expensive for smaller runs. A run of 1000 might come with a smaller price tag per unit than a run of 50. Not defending the price, just thinking out loud.

I don't question the usefulness of it product, just don't think it's $400 useful. I could be wrong.

This rod mounts to the same mount as on all the Arricam, 235, 416 stuff and the 435 handle, so it's useful for more than just the Alexa. Arri makes stuff that fits onto those mounts as well, though it is undoubtedly more expensive than this piece.

Ron, the rosette mount is very different. That's a 6mm screw, this is 3/8". And instead of a rosette, this case a round lip and 2 locating pins. EDIT: The Arri mount has a recessed round center, this attachment does not have the lip to fit into that.

Hi,

Funny that you are all talking dollars, last time I walked in a store here they only took euro's.
And looking in that perspective it is a lot less.
Reality is that I actually do not make a lot of profit on these things.
They are hand made by a local guy who is a focus puller and I am just trying to sell a couple of them.
I can respect the fact that you think it is too expensive, but keep in mind that however it looks very simple it is actually very precisely machined. It is so straight that the tolerances are at most hundreds of mm's, if not some Mu.

This local guy, Danny van Deventer is famous (or infamous just how you look at it) for his precision.
He is also a technician and I tell you for a fact that he drives the people at Zeiss, Arri and Aaton crazy by being so precise.
But I do appreciate the discussion about it, and maybe I can talk to him to get a lower price so that it is more affordable on your side of the pond. This price is just based on the amount of time he spends on making them.

And thank you Brian for pointing out that the attachment of this item is very different then the rosette attachments.
It is a very useful tool in my opinion, and since I have been focuspulling on big shows for more then 15 years I have a bit of experience in these things I thought.


Best regards, Herman Verschuur

Just to make clear how the attachment looks like here is a picture, it works on all the newer Arri camera's but not on the rosette's
Attached File  bracketarriscrewB.jpg   160.29KB   81 downloads



Well I've give you one thing, your damn good at shoveling the output of a bull...

for the price you're asking I hope that you're including the shovel.

There are items in this industry that require very precise tolerances, a motor rod is not one of them.

Nice try, but this item at this price is a HUGE skip.

oh and your attitude sucks
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#11 RonBaldwin

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Posted 10 November 2010 - 10:34 AM

just looked at Jerry Hill's product site and the same bracket (Hill 2-N-1) he's been making for almost 15 years is still $135 and will fit on the side of the Alexa as well as any other Arri camera if for some reason you choose not to use the rods. Jerry's square to round rods are $45 as well, which could probably be easily drilled out and fitted with a 3/8-16 bolt.

The attitude is comical -- "Funny that you are all talking dollars, last time I walked in a store here they only took euro's." Duh.
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#12 Jess Haas SOC

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Posted 12 November 2010 - 12:58 AM

A 1/4-20 bolt will fit through Jerry's square to round rods and you can use a 3/8-16 to 1/4-20 reducer(got mine at a photo store for like $3) to mount it. Haven't tried it but I don't see why it wouldn't work and if I didn't have the parts it would only cost me $50 to get them. Of course you don't have the locating pins so it is a bit less solid.

~Jess
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