Made of aluminum, anodized black
Center lens Board 110x110mm Copal/Compur/Prontor
Compatible with Arca Swiss Large Format Camera
There are 3 sizes for your choice,fit more need.
#0(inner Dia.34.6mm)
#1(inner Dia.41.6mm)
#2(inner Dia.52.5mm)
#3(inner Dia.65mm)
weight about 80g.
This price only for the lens board,the lens are not included,Thankyou!
If you need to customize the hole size, please contact us！