1: In general this app will let you enter 26 different fields (Camera Brand, Model, Year, Date Purchased, Cost, Est. Value, Coverage format, Product Type, Lens Mount, Mega Pixels, Film type, Filter size, Filter type, Zoom/Prime, Focus type, Lens type, Max Aperture, Min Focal length, Max Focal length, Memory Card type, Special Lens Design, Flash System, Photography type, Grade, Battery type) about the camera as well as unlimited photos and notes. 2: 19 of the 26 fields are connected to reference lists or drop down lists which the user controls what is in the lists. You can get to these lists by using the Reference lists menu from the main menu or you can use the long press functionality of each field text edit, simply hold your finger on the text field for Β½ second and the reference list for that field will appear. 3: The valuation feature will help you search for the value of the cameras in your collection and give you a total value.