Birger Mount operation. Please help.

[Ramasses H]

Hello RedUsers, I recently purchased a Red One MX BT from the Marketplace here. The camera came with the Birger Canon mount without the Impero unit. I've been trying to find information on properly operating the adapter with canon lenses. I do have the aux power cable and the unit is functional, however it takes a while for the aperture control to start working once the lens is mounted and camera is powered up.

I have tried the Canon 24-70 F2.8L, Canon 50mm 1.2L and the Sigma 18-35 1.8 Art lens and they all take what seems like a couple minutes before the aperture buttons do anything. I have also pressed the initialize button but that just seems to put the lens into auto focus. I have searched this website and the web for more info about this but I have not had any luck. I'm hoping someone here can tell me their experience. Is this normal? Am I missing some step in setting up the mount? I found some links to old videos about setting up the mount on Bliptv but they are no longer available, the BirgerEngineering website has very minimal info and youtube has a couple videos but they are mainly about using the Impero control.

I have also seen that lens data shows on the LCD for some people and I don't see anything but from what I've read that can be his or miss. Any information would be greatly appreciated, I really love this camera I just don't want too much downtime after waiting for it to boot. Below is a link to the camera I bought here.

http://www.reduser.net/forum/showthread.php?127184-Red-One-Mx-SSD-package-for-sale&highlight=birger

 

[ericyoung]

To initialise you actually have to press BOTH the top and bottom buttons (see the line between the two in your photo on the other thread?).
Then wait while the lens goes through it's focus distances and endstops.

After that hit the top button to open up the iris one step, or press & hold to open fully in one go.
Press the down button to close the iris one step. Press and hold to fully close in one go.

Lens data is very hit and miss - it comes and gos. You just have to count clicks most of the time, or expose by the exposure tools.

 

[Stephen Pruitt]

I've often wondered how people use a Birger mount without an Impero. I guess they just use it for aperture control only?

Stephen

 

[Robert Ruffo New]

With an Impero it is a wonderful, wonderful thing. I'll actually be at their booth at NAB.

 

[Robert Ruffo New]

To initialise you actually have to press BOTH the top and bottom buttons (see the line between the two in your photo on the other thread?).
Then wait while the lens goes through it's focus distances and endstops.

After that hit the top button to open up the iris one step, or press & hold to open fully in one go.
Press the down button to close the iris one step. Press and hold to fully close in one go.

Lens data is very hit and miss - it comes and gos. You just have to count clicks most of the time, or expose by the exposure tools.

This si only an issue if your iData cable is frayed. Counting clicks is no biggie - 4 clicks to 1 f-stop.

 

[Ramasses H]

Thank you very much ericyoung, pressing the top and bottom at the same time makes it work immediately. Having an Impero would be great but even without it the Birger mount is a great option for Canon EF Glass.

 

[ericyoung]

This si only an issue if your iData cable is frayed. Counting clicks is no biggie - 4 clicks to 1 f-stop.

That's not it, at least with mine! iData cable was fine.

 

[Stephen Pruitt]

My f-stop data usually shows just fine, but my focus distances are almost always wrong. . . is in 980 feet wrong!

But make no mistake: The Birger/Impero is a wonderful combination. I just wish the Impero had been more carefully engineered. Battery explosions are not uncommon with the Impero unless you're using rechargeable batteries (which is HIGHLY recommended).

Stephen

 

[Marcel Mulsoff]

My f-stop data usually shows just fine, but my focus distances are almost always wrong. . . is in 980 feet wrong!

But make no mistake: The Birger/Impero is a wonderful combination. I just wish the Impero had been more carefully engineered. Battery explosions are not uncommon with the Impero unless you're using rechargeable batteries (which is HIGHLY recommended).

Stephen

OMG!....I didn`t know this, any specific brand of rechargeable batteries recommended?.

By the way, I understand we have to replace the batteries one by one or you lose the configurations parameters in the Birger/Impero, is it true?

Regards!