Using Beaulieu 2008 Lens with 4008ZMII Body

Forum covering all aspects of small gauge cinematography! This is the main discussion forum.

Moderator: Andreas Wideroe

Post Reply
Guest

Using Beaulieu 2008 Lens with 4008ZMII Body

Post by Guest »

Hello.

Does anyone know if a lens originally from a Beaulieu 2008 (more specifically, the Angenieux 8-64 lens that was included with 2008s) will work properly with a 4008ZMII body? I know that both the 2008 and 4008ZMII use c-mounts and so, in theory, I can't see where there would be any problems or issues, but maybe there's something I'm overlooking.

Also, I realize that lenses from Beaulieu 2008s are outfitted to work with auto aperture but do not have the power zoom feature. Aside from the fact that power zoom wouldn't be possible, are there any reasons that this factor would cause problems when using a 2008 lens with a 4008ZMII body? Will the auto aperture servo on the 2008 lens be able to work properly on the 4008ZMII camera body?

Thanks!
Bjorn Andersson
Posts: 130
Joined: Wed May 08, 2002 9:26 am
Location: Stockholm, Sweden
Contact:

Post by Bjorn Andersson »

It will be possibly to use this lens and the aperture servo on your 4008. First you have to adjust the lens to the camera body, for this you must have a colimator unit and a set of distance rings for the backfocus adjustment, the servo must also be adjusted. 2008 is using 4,8V and 4008 using 7,2V. This adjustment is sometimes possibly to do without changing any new parts, but not always.
Bjorn Andersson
Beaulieu/Sweden
jessh
Posts: 512
Joined: Fri May 10, 2002 5:10 am
Location: Austin, Tx, USA
Contact:

Post by jessh »

hmm, I have always wondered about the colimation on beaulieu's, it seems to me a lot of people have problems with this, and that the solution is to adjust the colimation fo the lens, but if you use multiple lenses then wouldn't you have to get all of your lenses adjusted, and if you share lenses between different cameras then they might not work well on both. so basically my question is, is there a good way of adjusting the colimation of the camera itself (im not sure if that is the correct way of saying it but I hope you get my point), and adjusting multiple cameras to be the same and adjusting all of your lenses to be the same so it all works together, how would this be done? What about using adapters to use non cmount lenses on your camera?

Thanks,
Jess
Bjorn Andersson
Posts: 130
Joined: Wed May 08, 2002 9:26 am
Location: Stockholm, Sweden
Contact:

Post by Bjorn Andersson »

All C-mount lenses for non reflex cameras is adjusted for a backfocus distanse at 17,52mm +- 0,02mm. Same is with the camera bodies, exept that here are we talking about the optical distance for Beaulieu S-8 cameras, most of them has the W-85 filter behind the shutter, this makes the physical distanse a bit longer, the differense is 0,05mm. The gelatin filter change the distance a bit. This is one thing to remember for all of you who is thinking of remowing the internal filter from your Beaulieu´s. You will no longer have the crystal sharpnes, this is very critical in short angles. Many of the persons who is preaching for how good it is to remowe the filter, do this because they don´t have any new filter to instal in the camera, if there is some wrong with the one that should have been there. Why be happy with near sharp when it CAN be sharp.
Anyway, normaly all lenses for Beaulieu cameras is adjusted to 17,52mm, so is also the cameras, but in all production you had to have some toleraces. If the lens adjusted inside this tolerances it can be 17,52+0,02=17,54, and if the lens is on shorter side, the result will not be PERFECT. This is seen on short angles, from 9-10mm and shorter. The lens that is difficult to adjust is the Angenieux 1,2 6-80(90) on this lenses there is a non existing deepfield behind the lens, if you close the aperture to 22 you will have some. This is why it is so important to check the lens and cameras if you bye lenses and cameras separately. All lenses and camerabodys can be adjusted to a perfect distance, but it takes some time to do this work.
If you will use non C-mount lenses and use a adapter, there will not be any problem. If you use a 16mm lens, you don´t came down to the short focal length that will be critical. If you use lenses from still cameras, all lenses will be telephotolenses. You have to multiply the lens focal lengths by 6,3.
nagaarjuna

Using Beaulieu 2008 Lens with 4008ZMII Body

Post by nagaarjuna »

" If you use lenses from still cameras, all lenses will be telephotolenses. You have to multiply the lens focal lengths by 6,3."

Does this mean that a 50 mm lens for a 35 mm still camera would be 315 mm on a beaulieu body or am I getting it all wrong?

And to make it perfectly clear for me, can I just screw on any 16 mm C-mount on my beaulieu camera (4008 ZM II)? And to get it sharp, where do I get collimation adjustment rings? Will it cost a lot more to get them collimated by a professional, and in that case who could do it?

n-
Bjorn Andersson
Posts: 130
Joined: Wed May 08, 2002 9:26 am
Location: Stockholm, Sweden
Contact:

Post by Bjorn Andersson »

That is right you recive very long lenses.

You can´t find these distance rings, the only places they are available is by a professional Beaulieu-service and only together with a adjustment. If you don´t have a collimator unit you can´t do anything. This is a work for professionals. It´s difficult to give a price without seen your lens and camera. It´s big differens in the time to adjust a Schneider lens contra Angenieux lenses. It will cost someting between US$100-350:-for the adjustment of lens + the groundglass in the camerabody. I can´t precice it more, there is so many different lenses to Beaulieu S-8 with C-mount.
I can do this work on all of the lenses we are talking about here.
Post Reply