Using the Canon Speedlite 550EX with the EOS-1v The Program E-TTL Flash on the EOS-1v with any EX-series of Canon Speedlites is a huge departure from the older days of relying on the A-TTL as well as Canon's own TTL method introduced on the EOS-1N with the 540EZ. Unlike the T90 and earlier EOS cameras (including the EOS-1 and EOS-1N), the Program E-TTL flash available on Type A cameras like the EOS 300, EOS-3 and the EOS-1v, is an improved version over the earlier models. On the EOS-1v, the algorithm for E-TTL calculations has been improved further, making flash photography even easier than ever. All the user has to do is put on the flash, switch it on, and wait for the pilot lamp to grow, recompose and shoot. Presto! Perfect flash photos. Don't believe it? Just look at the examples below, shot with ISO 100 film. Richie Ren, Yuki Hsu and Tarcy Su E-TTL flash for close-up portrait     Candid shot in Program E-TTL Not much of a difference with E-TTL in Tv mode     Another candid shot in Program E-TTL And another one The three Taiwanese artistes - Richie Ren, Yuki Hsu and Tarcy Su - were shot with the EOS-1v and Program E-TTL in the usual aim, AF and shoot procedures. The E-TTL algorithm has been designed to give out a middle range aperture value of between f/5.6 and f/2.8 (depending on the brightness and maximum aperture of the lens used) as compared to the older A-TTL/TTL versions, which calculate the flash exposure based on subject-to-camera distance and choosing an f-stop of f/11 or smaller. Such designs have always resulted in underexposure when used with ISO 100 film. This problem was solved when the Type A EOS cameras came into being with the improved version of E-TTL flash coverage. A stationary biker was captured on film Evening walk at People's Park, KLCC. Next, the EOS-1v was used to shoot even more ordinary scenes like the two photos shown above of the stationary biker and the group of visitors taking a stroll around the KLCC People's Park. The shot of the biker was captured just to see whether the EOS-1v can cope with the situation at hand - whether it can be fooled by the brighter background. It didn't and the EOS-1v was able to record that scene just as it was. The group of walkers was captured just before the sun disappeared over the horizons, hence the slightly warmer cast on some of them. As you can see, the exposure was perfect despite some differences in contrast between the highlight and shadow areas. On a closer look, you will see that some of them were already under the shades. << Back to Main . 1 . 2 . 3 . 4 . 5 . 6 . 7 .