Connect a bellows frame on a lens plate.

[arnoud bakker]

Hello you all,

in order to connect a sinar DB shutter to my 8x10" PLAUBEL peco, I
want to assemble a bellows frame to a lens plate.
the frame is quite thin and made of plastic, but there will be some force on it,
I want to connect a shutter, a subframe and a dallmeyer 8" 2.9 on it...
3 kg total.. what is the best, solid and safest way to connect the bellows frame to the lensplate?

anyone?

 

[Dan Fromm]

Hello you all,

in order to connect a sinar DB shutter to my 8x10" PLAUBEL peco, I
want to assemble a bellows frame to a lens plate.
the frame is quite thin and made of plastic, but there will be some force on it,
I want to connect a shutter, a subframe and a dallmeyer 8" 2.9 on it...
3 kg total.. what is the best, solid and safest way to connect the bellows frame to the lensplate?

anyone?

What you want to do is, as you explained it, incomprehensible. The shutter should attach to a lens board. The lens board attaches to the front of the camera's front standard. What does the bellows frame have to do with it? It attaches to the rear of the front standard. Is your Plaubel camera incomplete? Do you use other lenses on it?

 

[TheYoungPretender]

Sorry if I misunderstand your intentions. If I understand you correctly you want to mate the bellows frame to a lens board to be able to attach it to the rear of the sinar shutter as if it would have been a sinar bellows frame? Then, would the easiest way be to interface it the same way that the Sinar DB is attached to the Sinar front standard? i.e. looking from the back to the front standard:
Bellows, adapter that would accept the cambo bellows frame on one end and that would attach to the sinar shutter on the other end, sinar shutter, adapter plate that would attach to sinar shutter on one end and the cambo standard on the other end, cambo standard, cambo lens board w/lens.

That way you would "only" need the adapters to hold the weight of the sinar shutter. It shouldn't be impossible to model something like that, especially if you are willing to simplify the geometry a little bit, and have it 3d-printed if you would be open to that and the cost shouldn't be too high.
There are both sinar and cambo lens board models that you could use as a starting point.

 

[abruzzi]

Also, I've seen a number of lensboard type [X] adapted to sinar on order to mount the sinar shutter in front of the front standard. I use this to mount a sinar shutter in the front of my Toyo 810Mii. Plaubel is uncommon enough that I'd be surpised to see an Plaubel adapter, but if you have, for example, and plaubel to Linhof adapter, then you could mount an adapter to the linhof adapter. Here is an example:

Luland lens board Linhof 99*96mm to SINAR 140mm Shutter Adapter-Front connection | eBay

LULAND has been focusing on CNC precision machining for more than ten years. “Stable”but“flexible”is our philosophy. Manufacturer: Luland. Linhof Size: 99 96mm. Sinar Size: 140 140mm.

www.ebay.com

This model is deep, so it looks like you lose an inch or so so its less helpful with winde angle lenses.

 

[arnoud bakker]

Here it looks as if the shutter is mounted the wrong way around (backwards) on the camera. This doesn't seem like a big deal, but it is. You cannot attach Sinar lens plates to the camera in this way. You can also see in the photo that the lens they use is simply pushed into the hole for the photo.
new question can I glue a plastic frame on a metal lens plate? there wil be a 3 kg force on it