The following external projections are supported in ERDAS IMAGINE and are described in this section. Some of these projections were discussed in the previous section. Those descriptions are not repeated here.

ERDAS IMAGINE does not support datum shifts for these external projections.

- Albers Equal Area (see Albers Conical Equal Area)
- Azimuthal Equidistant
- Bipolar Oblique Conic Conformal
- Cassini-Soldner
- Conic Equidistant (see Equidistant Conic)
- Laborde Oblique Mercator
- Lambert Azimuthal Equal Area
- Lambert Conformal Conic
- Mercator
- Minimum Error Conformal
- Modified Polyconic
- Modified Stereographic
- Mollweide Equal Area (see Mollweide)
- Oblique Mercator (see Oblique Mercator (Hotline))
- Orthographic
- Plate CarrĂ©e (see Equirectangular)
- Rectified Skew Orthomorphic (see RSO)
- Regular Polyconic (see Polyconic)
- Robinson Pseudocylinderical (see Robinson)
- Sinusoidal
- Southern Oriented Gauss Conformal
- Stereographic
- Swiss Cylindrical
- Stereographic (Oblique) (see Stereographic)
- Transverse Mercator
- Universal Transverse Mercator (see UTM)
- Van der Grinten (see Van der Grinten I)
- Winkels Tripel