Compact, dustproof, and weather resistant, the Pentax AF180FG Flash is a simple, yet reliable auto flash for Pentax DSLR and Ricoh GR III series cameras. Just as the previous AF201FG model, this flash unit is compatible with Pentax's P-TTL system for automatic flash exposure, offering similar features with some updates, while keeping a simple, uncomplicated operation and the same compact and lightweight body. Users can choose from P-TTL auto flash with first or second curtain sync or use the manual mode for flash control at full or 1/4 power.