At the moment, SNS-HDR v1.4.22.1 does not have an in-program way to reduce Chromatic Aberration [CA] but it is being considered... ...See:
http://www.sns-hdr.com/forum/viewtopic.php?f=7&t=353My investigations indicate that best CA reductions occur in the image RAW data during conversion. This is particularly challenging to program as a Preview display is needed so that the 'dcraw.exe -C r b' option can be optimized... ...then too this should be done for each of the images in an image set before automatic "image merge" and "tone-mapping"...
Also, the "dcraw.exe -C r b" image conversions of a multiple image set may have automatic alignment and de-ghosting challenges because of edge artifacts.
It would be far easier to program an additional 'CA reduction editing feature' for the SNS-HDR resulting image derived from a single or multiple image set... ...but the results of reducing tone-mapped/sharpened [enhanced] CA image areas would perhaps yield less satisfactory results than performing the CA reduction during RAW conversion...
For the moment when CA reduction is needed, I will use "dcraw.exe -C r b" along with other options to produce a 16bit tiff or tiffs in the case of an image set for input into SNS-HDR... ...or... when this fails, use the CA reduction feature of an external editor for the SNS-HDR input 16bit tiffs and/or on the resulting SNS-HDR image version.
If there is further interest, I would be willing to describe/illustrate how SNS-HDR's "dcraw.exe" can be used with Vista and Picture Window Pro to RAW convert with CA reduction... ...this may provide insight to using your own OS and external editor.