The lensmate DP2 52mm adapter should be available in the next serval weeks.
(click here) to be on an interested parties list and we will email you once the adapter is available to order.

There are multiple benefits to using a lens adapter on a camera like the DP2/DP1.
The Lensmate DP2/DP1 lens adapter has a 52mm filter thread. This size has some advantages over the OEMs 46mm size. The availability and selection of 52mm filters is greater than the 46mm size and many DP2/DP1 users already own 52mm filters. The larger size allows the stacking of filters and hoods with less likelihood of vignetting.
coming soon
Even most advanced compacts have some deficiencies especially in handling department, the Sigma DP2/DP1 is no exception.
Following footsteps of field proven Custom Grip for G7/G9 this is Custom Grip DP2/DP1 (CGDP1). Made from the same material as it's predecessors, CGDP1 is unique in it's form.
The grip is individually 3D CNC machined, glass bead blasted, black anodized / nickel sealed and will be manufactured in limited quantities.
Comparing Sigma VF-11 and Voigtlander Brightline 28mm VF. Click here
When I found myself with an extra DP1, it occurred to me that it might just make a dandy infrared camera. So against my better judgement, I immediately proceeded to disassemble it to remove its IR block filter. The most difficult part of the process is actually removing that filter since it's attached with adhesive film to the sensor mounting plate and mask. So it needs to be carefully excised without damaging the mask. No doubt someone will be offering this conversion so you won't have to do it yourself. Of course with an external filter, there's the possibility of using one camera for both visible and IR photography with the appropriate IR block filter.
The DP1 focuses perfectly even without the IR block filter, though AF is hit or miss - I just leave it at infinity MF and focus is excellent, even at f4 or with a wide conversion lens. Image quality is excellent, and with an R72 filter (haven't tested other filters yet) there's no dreaded hot spot at any aperture.
Dynamic range is just as impressive in IR as it is in visible light, and negative fill light judiciously applied in SPP creates a halation effect not unlike HIE film. There isn't room inside the camera for an internal filter (not where the IR block filter was anyway - it's only about .018" thick). I use an R72 filter either on the lens adapter, or one that fits inside the Nikon WC-E75 .75x.
Tony