6.1 PerspectiveLinear PerspectiveOverlapDepth of FieldLightingAerial HazeColor6.2 Focal Length with Distant Objects6.3 Focal Length Limitations at Close Range6.4 Maximum Scale of ReproductionScale of Reproduction and Bellows ExtensionScale of Reproduction and Focal LengthScale of Reproduction, Focal Length, and Object Distance6.5 Closeup Photography, Photomacrography, and Photomicrography6.6 Image Definition of PhotomacrographsChange the ApertureReverse the LensUse a Positive Supplementary LensSubstitute a Lens Designed for Use with Shorter Object Distances6.7 Lighting for Photomacrographs6.8 Perspective6.9 Object Distance and Perspective6.10 Focal Length and Perspective6.11 Simultaneous Changes in Object Distance and Focal Length6.12 Use of Camera Movements Versus Changing Object Distance6.13 Apparent Perspective EffectsViewing DistanceCropping6.14 Wide-Angle Effect6.15 Trick Perspective