Camera facing forward

EO cameras have round lenses but rectangular images… The images are cropped to fit onto the sensor. If the camera is held such that the photos are taken in landscape mode, meaning the top of the camera is facing in the direction of flight, then it will cover more area side to side than if the camera was held in portrait mode, meaning the side of the camera is facing in the direction of flight. Some small fixed wing aircraft are so small that they must put the camera in sideways. This will increase the number of rows that the aircraft needs to fly to obtain the proper overlap. This will significantly increase flight times.