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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Birger Lens Mount Reservations

Emanuel said:
Thanks for the post. I don't want to be the complaint-type 'cause actually I'm not used to be! :-) Besides, there's already a stick-thread properly opened there, so don't take it like that.

Although, just for the record... Since I didn't get confirmation on my 2nd order in any way other than as far as the 1st one is concerned, how should I proceed?

Waiting for your confirmation on my 2nd one?

Or sending it again by NAB? (in order to keep the free remote control offer)
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birgerEngineer said:
Yes.

Those that have been kind enough not to call me for status aren't aware of this... :whistling:
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Seems clear that you have no answer on subject yet. But it would be good to have the troops prepared. Or, as far as it is possible to follow up from that infamous sticky thread -- with so many people with no confirmation yet, you'll have a serious problem with cloned orders before you can take care or notice them... :)
 
I just want that wireless hooked up and ready to go pronto!

Stephen
 
If memory serves, at last notice, Birger had hoped to begin shipping the week of 3/31. Still some days left in that week yet... and I'm still hoping.
 
Surely, they must be close. . . but, again, no guarantees. Some of us are really starting to cut it pretty close, though.

Come on Birger!

Stephen
 
Mount Assembly

Mount Assembly

No doubt, many have already seen what is involved in disassembling a RED PL mount from the camera. I have been told there are some videos out with this. The attached picture shows the assembly procedure for a Birger mount for the RED camera. THis picture shows a camera adapter made with an FDM (plastic) instead of black anodized aluminum, as the production parts are.

It is rather straightforward. The cable is coiled, and slid into a small tube. The mount is slid over this, and attached to the camera with four screws. The cable is then plugged in and the lens is attached.

To collimate the mount and camera, best focus is found, with a zoom lens and a chart at 1 meter, under four scenarios, with and without a +1 closeup lens, and with the lens zoomed narrow and wide. In the long range the remote control will have a program running on it that will tell you how much to move the rotary mechanism to get the back focus right on. In the short run, one will have to go to a website and punch in a few numbers. The back focus is then adjusted, and the procedure is repeated until the result is an accurate back focus, which should be only two or three iterations.

To adjust back focus, the lens is removed, and the four mounting screws are loosened one turn. The rotary mechanism is accessible without removing the Canon mount through the lens bore. It *may* be necessary to remove the Nikon mount, with four additional screws, to access this mechanism.

There is a combination of markings on the two parts that make up the RED camera adapter, that allows one to repeatably set back focue with a given RED camera, and Birger lens mount to 0.005mm, repeatably.

The system consists of three interchangeable parts: your RED camera, a Birger lens mount to RED camera adapter and cable; and a Birger lens mount. Depending on the sort of swapping one wants to do, the camera adapter either stays with the camera or the lens mount. One only needs to keep track of the rotary position on the adapter for each camera and mount serial number to avoid having to recollimate.

The last of the mechanical parts are running through the shop over the next few days. We have 200 sets due in a number of lots over the next 4 to 10 days. We will start shipping the middle of next week.

Steve Sherrick invited me to the REDuser party at NAB. We will bring a mount, knob, camera to the event so people can be very hands on... I believe we will be demonstrating the Cooke /i data interface on the mount as well.
 
In all of the reading about and following of the progress of the mount, I can't remember...Is there some sort of read-out for what focus distance the lens is set to on either the mount or remote or camera LCD?
 
birgerEngineer said:
One only needs to keep track of the rotary position on the adapter for each camera and mount serial number to avoid having to recollimate.
Click to expand...

From the way this sounds, some numbered millimeter type markings would help. One would only have to remember the correct number to reset it at the correct position.
 
BobEdot said:
From the way this sounds, some numbered millimeter type markings would help. One would only have to remember the correct number to reset it at the correct position.
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That is the idea. It reads to 0.01mm, but you can easily split that distance. The marking can be read as a two digit number in 0.01mm increments, resetting every 1mm. It just isn't an absolute number... so each camera adapter's number will potentially be different for the same thickness.
 
Erik thank you very much.

In one word:

AMAZING !

Looking forward to get it soon!!!!!!!!

All the best at NAB.
 
Thank you for the update EriK.

So this is a very different procedure from swapping out the PL mount for the Nikon. Judging from your pictures, the entire Red mount needs to come off, with it's adjustable collar as well? I don't think that process has been documented anywhere. How difficult is it to do?
 
True, true, painfully true, dear Paolo but there are other pressing and extraordinarily interesting interim uses of this remarkable adapter that our museum is waiting with baited breath to implement. Wonderful days, these.
 
Steven-Marc said:
Thank you for the update EriK.

So this is a very different procedure from swapping out the PL mount for the Nikon. Judging from your pictures, the entire Red mount needs to come off, with it's adjustable collar as well? I don't think that process has been documented anywhere. How difficult is it to do?
Click to expand...

Ditto. This installation is different.
 
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