Sekonic Exposure Profile Target 1 Version 2.0 & later of the Digital Transfer Software is designed to be used with Exposure Profile Targets that have alignment marks. The alignment marks simplify & automate the selection of Profile Target images with the DTS software. If you own a Profile Target I & do not have the alignment marks, please request directly from Sekonic USA by calling the Service Department at 914-347-3300. If you live outside the USA, contact your country's distributor. To profile your camera & lens combinations, the Exposure Profile Target I is fully compatible with FREE Data Transfer Software along with the L-758D, L-758DR, L-758 Cine, L-478D, & L-478DR light meters. The result is total exposure accuracy. Features exposure target on front, & gray card on back for custom white balance of D-SLRs.