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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

Martin Weiss said:
Ok. Here comes a rather basic question: what exactly does the Birger mount do?

(I've found absolutely no information on the Birger website, and have spent 2 hrs searching the reduser archives, to little avail.)
Click to expand...

http://youtube.com/watch?v=C7t6W2cWzMw

Allows use of Electronic lenses with no aperture. Electronically controls both focus and aperture. Eventually will include wireless remote follow focus and image stabilization using Canon IS lenses.
 
Thanks, Joelnet, this youtube video has me (almost) convinced of going the Canon, rather than the Nikon route.

Some more questions:

• Is the Birger mount a replacement for the Red PL mount (like the Nikon mount), or an addition to the PL mount. I.e. how do I change from one mount to the other - is it a (relatively) permanent one, or a quick on-the-set job?

• What sort of Canon lenses are best to be used? Over at the Lens test thread I found a lot of Nikon info, but Canon info seems much harder to get by. For Nikon there are some very nice Zeiss primes around - is there something comparable in the Canon world?

• Will/might there be an option to compensate for light changes during zooming?

• Will/might there be an option to compensate for breathing?

• How finely can one focus with an electronic focus motor? Is it just like a cine remote focus?

• If I get a set with the birger mount, Rail Mount knob, Camera cable and Accessory cable, plus a Canon lens - am I ready to go? (Well, a Red and a battery might help.)

• Are they shipping now? It seems like it has been postponed a "few" times...
 
Martin Weiss said:
Thanks!

In practice, does this mean that with the Red Nikon adapter I can use Nikkor glasses - with manual control of focus and iris on the lens; while with the Birger I can put on Canon glass and have a remote control of focus and iris?

In other words, the Nikon is mechanical, the Birger electronic?

Is there a page that explains the benefits of the Birger?

Again, thanks for help & info.
Click to expand...

It's not going to be an either/or situation as you're stating it. Like all of the third party suppliers, Eric is feverishly working on finishing up the Canon mount before he begins on his version of a Nikon mount. So in a few months, you'll have the option of either a Birger Canon mount or a Birger Nikon mount, both electronic utilizing the motors in the lenses.

I like the idea of the P+S mount also, but the only problem for me is that it would still be a dumb mount, just with the ability of using anything under the sun, for the most part.
 
Martin Weiss said:
Thanks, Joelnet, this youtube video has me (almost) convinced of going the Canon, rather than the Nikon route.

Some more questions:

• Is the Birger mount a replacement for the Red PL mount (like the Nikon mount), or an addition to the PL mount. I.e. how do I change from one mount to the other - is it a (relatively) permanent one, or a quick on-the-set job?

• What sort of Canon lenses are best to be used? Over at the Lens test thread I found a lot of Nikon info, but Canon info seems much harder to get by. For Nikon there are some very nice Zeiss primes around - is there something comparable in the Canon world?

• Will/might there be an option to compensate for light changes during zooming?

• Will/might there be an option to compensate for breathing?

• How finely can one focus with an electronic focus motor? Is it just like a cine remote focus?

• If I get a set with the birger mount, Rail Mount knob, Camera cable and Accessory cable, plus a Canon lens - am I ready to go? (Well, a Red and a battery might help.)

• Are they shipping now? It seems like it has been postponed a "few" times...
Click to expand...

The Birger mount is a replacement for the PL mount, but it can be changed at will, depending on necessety, just needs to be done by a skilled person.


This are few threads that might give you some of the info you are looking for in purchasing the right Glass from Canon, for the Birger mount.


http://www.reduser.net/forum/showthread.php?t=10396


and part II:


http://www.reduser.net/forum/showthread.php?t=10397


ciao
 
Wow, this thread is getting insane but for new people showing up just know that Its coming, and its worth the wait if you plan on doing anything with Canon lenses...(or wait a bit longer for NIkon).

I have a feeling its going to ship any day now or within the week...from what I saw at NAB, Erik is on the home stretch and the light is at the end of the tunnel for all those patient enough to wait.

I have said it before, Erik is a great guy and he puts his product 1st so you will be happy in the end. If you have not already seen a lil podcast I made on my blog then check it out on the Gotham Guerrilla, or you tube for the BIRGER mount demo.
 
Does anyone have an idea whether the torque caused by long Canon teles may break the Birger mount? I'm just wondering how, say, the EF 600m/f4 L IS lens should be attached to the Red One with a Birger mount. This is not the same thing as attaching the lens to a Canon EOS camera body, for the weight of Red One is much higher.

My guess is that one should first support the 600mm lens on the rail system. Thereafter the lens is slided towards the body and rotated to the Birger mount. But now, what about the 70-200mm/f2.8 IS L lens or 300mm/f2.8 L lens? Should they also be supported on the rail system?
 
Martin Weiss said:
questions
Click to expand...

- Birger completely replaces RED's mount including backfocus.
- Stick to newer L-Series Canon. EF-S works as well.
- Breathing compensation could come for some lenses. Don't hold your breath. (sorry, couldn't resist)
- You can focus very finely from what I saw at NAB.
- Birger supplies all you will need less the lens.
- Dial 1-976-psychic for shipping dates. That's who Birger uses I'm pretty sure.

Be aware the Nikon version will only support Nikon's with motors in them. That leaves out most autofocus lenses Nikon has produced. Those had motors in the camera body and spun a mechanical gear in the lens.
 
[QU Be aware the Nikon version will only support Nikon's with motors in them. That leaves out most autofocus lenses Nikon has produced. Those had motors in the camera body and spun a mechanical gear in the lens. OTE][/QUOTE]

Thanks, Joelnet
That answers one of my questions. Do you or anyone else know if Birger may have anything coming down the line for these older nikons?
 
Joelnet said:
[QU Be aware the Nikon version will only support Nikon's with motors in them. That leaves out most autofocus lenses Nikon has produced. Those had motors in the camera body and spun a mechanical gear in the lens. OTE]
Click to expand...

Thanks, Joelnet
That answers one of my questions. Do you or anyone else know if Birger may have anything coming down the line for these older nikons?[/QUOTE]
 
well since we're waiting, we might as well do something with our time so here's a question slightly off topic. How does everyone plan to support the longer lenses on the birger? I have a 70-200 f.28L that has a convenient tripod ring on it. I figure I'll run the universal mount off the front rails and hope that I can make a washer or something to support the lens. Maybe some of the CAD/CAM types will make one for us to buy. Anyone else got an idea?

It's my hope that I will only need to support the 70-200 and that the rest of my lenses like the 24-70 2.8L will be alright without it.

After reading reports that the 50 1.4 might breathe too much on the birger, I bought the 50 1.2 and even as a still lens, its a lovely lens.

completely off topic, but this forum's DIY spirit reminds me a lot of the ducati monster forum where I spent a the rest of my time and money.
 
Yes, there is an opportunity for someone to make money selling lens supports for Canon still lenses. I have the 70-200 2.8 and the 300 2.8IS and both need support. Help Erik or accessory maker?
 
dear team. I leave for Israel on May 16th.... I have the Tamrac cyber pack 8. I have canon lenses. I really really want to bring RED 998 with me. anyone with some info? Erik. hope things are going well at Birger. At some point I need to decide to not bring it, go rent a lens, or pay in full for the Birger mount. I'm sure there are people with much larger production having to rearrange their plans around the mount.... so I'm not complaining, just super excited for the email, letting me pay.
 
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