Chapter 1: Introduction In this chapter . . . Instrument Overview Which Instrument to Use: WFPC2, ACS, NICMOS, or STIS? History of WFPC2 The Previous vs. Current Generation: WF/PC-1 vs. WFPC2 Organization of this Handbook What's New in Version 5.0 for Cycle 10 What's New in Version 6.0 for Cycle 11 WFPC2 Handbook on the WWW The Help Desk at STScI Further Information
