1 INTRODUCTION

2 METHOD AND THEORY

2.1 Dark Matter Reconstruction

2.2 Model-free Mass Measurement

2.3 NFW Profile Model

3 THE STAGES DATA

4 RESULTS

4.1 Mass Estimates for NFW Profiles

4.2 Dark Matter Maps

4.3 A Comparison of Mass and Light

4.4 Supercluster Substructure

5 DISCUSSION AND CONCLUSION