Real-time shooting with the Canon EOS-1N Rs. In the fall of 1989, when the original Canon EOS-1 was making its debut, the EOS RT was also introduced. The EOS RT was an EOS 600/630 (marketed in April 1989) variation equipped with a stationary pellicle mirror. It was also the world's first AF 35mm SLR to have Real-time shooting with a shutter time-lag of only 0.008 of a second. Since the RT's introduction, professional users of EOS equipment have requested for a pellicle-mirrored 1-series model. Canon responded with the EOS-1N RS in May 1995, a high-speed variation of the standard EOS-1N professional model that replaced the original EOS-1 in September 1994. It had everything the standard EOS-1N possessed (except Depth AE mode) plus Real-time shooting at up to 10 fps when set in its RS mode, made possible with a permanently attached Power Drive Booster E1 (PDB-E1). Canon EOS-1N RS EOS-1N RS' internal design Since the pellicle mirror is stationary, there is no viewfinder blackout at the moment of exposure. This feature provides the following nine advantages: 1. The focusing, composition and photographic effects can be confirmed in Real-time even at the moment of exposure. 2. Flash synchronization can be confirmed through the viewfinder. 3. Since the moving subject can be seen through the viewfinder even during continuous shooting, tracking ability is excellent in the AI Servo predictive AF mode 4. For moving subjects, the results of focus prediction can be confirmed in Real-time through the viewfinder. 5. For slow shutter speed flash synchronization and second-curtain flash photography, the timing for shutter release is easier to determine. 6. The results of stroboscopic sequence can be previewed in Real-time. 7. Composing a shot for multiple exposures is easier, especially when slow shutter speeds are used. 8. Any camera shake can be confirmed in Real-time at the moment of exposure. This can serve as feedback and also warn the user to avoid camera shake when a long telephoto lens is used. 9. The stopping down of the diaphragm can be confirmed. In the Program AE and Shutter-priority AE modes, the execution of AEB can also be confirmed. In Real-time shutter release (RS) mode, pressing the shutter button halfway executes autofocusing and stops down the aperture. This makes it easy to confirm proper exposure. Shutter time-lag in the RS mode is a fast 0.006 of a second, which is 2-milliseconds faster than the EOS RT. << Back to Main . 1 . 2 . 3 . 4 . 5 . 6 .