The shutter release lag time has be estimated to be about 58 milliseconds. This is comparable to the faster 35mm SLRs, so the SD10 should be well suited capturing images of lightning. Sigma (and other camera makers) does not offer a remote triggering device, suitable for this application; however, such devices are offered by other independent companies. One such company is Stepping Stone Products, in Colorado (www.lightningtrigger.com). They can also be reached at (800)452-4167 for more information.