Hi, We are currently using a Sunpak PZ4000AF with a Nikon F5. Can someone please tell me exactly what it is that we are giving up by not using an SB-28. I don't mind spending the money if there is really a gain. We had the Sunpak before we got the F5. Jesse -- =============================================================================== Ready-to-Run Software, Inc. Software Porting Specialists. ***************************** email: [EMAIL PROTECTED] Jesse Creamer fax : +1 978 692 9990 Ready-to-Run Software, Inc. voice: +1 978 692 9922 4 Pleasant Street www : http://www.rtr.com Forge Village, MA. 01886 USA