SLR Cameras

The SLR camera is similar to the DSLR however the SLR is non digital and therefore uses film instead of an SD card. The SLR allows for interchangeable lenses which made it (and still makes it) a good option for professional photographers or those who find it useful for either pleasure or work. One example of an SLR camera is the Contax RTS. The Contax offers many of the features found in DSLR cameras such as manual focus and shutter speed adjustments. It also allows for the ISO to be changed however this is much more limited on SLR cameras as due to their usage of film, the ISO can not be changed on the fly and must be decided at the start of the photo film. Aperture is also a variable which can be changed. The DSLR is the successor to the SLR and therefore overtakes the SLR in useability and flexibility however many photographers still use SLR cameras as they prefer to shoot on film. Manufacturers such as Nikon and Canon made SLR cameras and also produced a wide range of lenses to accompany the cameras in order to maximise functionality of the cameras.