Re: [Leica] Making a back to back lens coupler

[Rick Dykstra <rdandcb@cybermac.com.au>]

Dennis Painter wrote:
> 
> I want to glue two of the latest rear lens caps together to make a back
> to back lens coupler. The grey thing leica sells should be closed and
> deeper for 21mm lens, etc.
> 
> I figure if I just glue them tother they will separate, at a most
> inopportune time. Anyone do this and know what works?
> 
> It does look like that ridge should be sanded down to improve the
> contact surface area.
> 
> TIA,
> Dennis

Hi Dennis,

trimming the ridge and then roughing up the areas to be glued would be a
good idea.  but I'd also try something like rivetting the caps together
(if clearance allows and it might not), or putting three stitches
through the perimeters of the caps, so that when the glue lets go,
there's an emergency hold. 

Regards

Rick Dykstra