As I understand it, DSLRs have a focal length crop-in factor, for those which don't have a full-frame sensor. As such, a 50mm effectively becomes a 75mm on a DSLR, for example. However, I noticed the focal length that is automatically set on the flash doesn't reflect the crop-in factor (e.g. a nikon sb80dx). Will this be a problem when it comes to flash exposures? Somehow I 'feel' that I don't get as 'proper' a flash exposure on a DSLR as on a full-frame SLR. Also, will the 'bokeh' of the 50mm on a DSLR be the same as the 'bokeh' of a true 75mm used on a full-frame SLR? Thanks for any replies in advance.