The Speedlite EL-100 from Canon is a sleek strobe designed to give you more control, flexibility, and power than your camera’s built-in flash. Offering a guide number of 85.3′ at ISO 100 and 50mm, this flash also has a 90° tilting range, 330° rotating, and a similar spread to that of a 24mm to suit working in a variety of indoor and outdoor situations. For creative applications, a stroboscopic mode can be used for unique effects during long exposures or second-curtain sync helps to emphasize moving subjects. The mode dial features an AUTO setting to allow your camera to determine whether or not the flash is needed and will fire when necessary. The stroboscopic setting for rapid, repeating firing that can be used for creative effects during long exposures.
The Speedlite 600EX II-RT sits at the top of Canon’s on-camera E-TTL / E-TTL II compatible flash lineup with a powerful guide number of 197′ at ISO 100 and 200mm. The two-way 2.4 GHz radio system provides added reliability and a range up to 98.4′ among up to 5 groups with a total of 15 individual Speedlites. This system also does not need direct line-of-site like traditional optical-based transmission and will work through obstacles. Also, the unit can tilt from -7 to +90° and rotate 180° either left or right for complete bounce capabilities. On the back of the 600EX II-RT is a backlit dot-matrix LCD panel that displays the status and allows users to easily access and change settings. Additionally, the flash is durable with a redesigned contact construction and improved dust and water-resistant sealing. Other capabilities of the 600EX II-RT include a stroboscopic mode as well as high-speed, first and second curtain sync settings for more control over your image’s final look. It comes with a bounce adapter, a hard CTO filter set, a mini stand, and an updated soft case that holds the flash and accessories.