Sorry, not necessarily.
When you get the Componon 105, check the mounting thread size.
According to a table I looked at, the Componon 105mm lens has a 32.5mm mounting thread.
Your lensboards are probably sized for the standard 39mm mounting thread.
You will either need a new lens board with hole sized for the 32.5mm mounting thread, or an adapter so you can mount the Componon in a standard 39mm lens board.
Here is a lensboard with a 32.5mm hole. Note that you will also need a retaining ring to secure the lens onto the lensboard. Lets hope your lens comes with one, as the retaining ring will cost $25 to 30.
They do make an adapter that will screw onto the 32.5mm lens so you can use it in a 39mm lensboard (which is what I think you have)
The adapter run about $35
I found this one, made of aluminum, at a much lower price 8 euro + shipping:
One caution, the customphototools adapter does not have a notch in it, but he will put the notch in IF you request it. The notch is important to be able to remove the adapter w/o damaging the threads, if it is on then lens TIGHT (which will happen sooner or later).
I was going to buy the Custom Photo Tools adapter, but I found a 32.5mm lens mount instead for about the same price.
YOU have to determine if you want to go the adapter route or a new lensboard....or...
Another option. Get a 105mm lens with a standard 39mm mounting thread, and you can simply use your existing lensboard.
Comparing the cost for a new 32.5mm lensboard, or an adapter to use the 32.5mm lens with your existing lensboard, or a less expensive 105mm lens, the new lensboard comes in close in price to a new lens. If the Componon does not have a retaining ring, the new lensboard option will be even more expensive, because you need to buy a retaining ring. The Custom Photo Tools adapter comes in at the lowest cost, by about half.
Last edited by ac12; 02-23-2013 at 05:01 PM. Click to view previous post history.