Compare Pentax AF-540 FGZ TTL Flash to Nikon Speedlight SB-900 TTL Flash

The AF540FGZ Electronic-Flash unit features a large guide number of 54 (at ISO 100) and provides a variety of advanced flash applications, including advanced P-TTL auto flash, high-speed synchronisation and wireless P-TTL auto flash (when mounted on a Pentax SLR camera). When mounted on a Pentax Auto-focus SLR (after the Z-10 and including Digital Format models) equipped with an FA-, FA J-, DFA- or DA- series lens, the AF540FGZ automatically adjusts its angle of discharge to the lens' focal length. The AF540FGZ auto-flash unit also features a newly provided 'Digital' position on the focal-length conversion scale of the Zoom Head which can accommodate digital SLRs, Bounce Flash function with adjustable angles of -10 to 90 degrees vertically and up to 180 degrees horizontally, and Power-zoom flash head to cover angles of view for 24mm to 85mm lenses (in 35mm format). Less

Le SB-900 est parfaitement adapté aux formats DX et FX. Il sélectionne automatiquement le mode de répartition de la lumière en fonction du format du capteur de l'appareil sur lequel il est fixé. C'est un accessoire essentiel qui ouvre de nombreuses opportunités créatives au photographe. Less