
Best selling Flashguns from Pentax
On this page you’ll find a ranking of the best Flashguns from Pentax. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.
1. Pentax GF-2 WW
Compact, fast and designed for the GR IV flash.
The GF-2 fits in your pocket and remains unobtrusive on the camera, so you're always ready to add clean, controlled light to street and travel photography. This flash is designed for photographers who want a minimalist, always-ready flash for the GR IV - easy to use, with consistent light output and a dedicated power source that ensures reliable performance on the go.
Automatic flash control
When the GF-2 is connected to the Ricoh GR IV camera and the camera is set in ISO Auto Flash mode, it enables automatic flash control that adjusts both the effective guide number and ISO sensitivity based on the distance to the subject. This intelligent combination helps maintain consistent exposures in changing situations without having to scroll through menus or estimate flash output.
Dedicated power source and charging
The GF-2 uses its own rechargeable lithium-ion battery and charges via a USB Type-C connection. As the flash has its own power source, charging efficiency remains stable even when the camera battery is low - ideal for long shooting sessions and quick documentary situations.

2. Pentax AF-540FGZII AW Automatic Flash Unit
The Pentax AF-540FGZII AW is a powerful automatic flash unit specifically designed for photographers who value reliability and versatility. With a guide number of 54 at ISO 100, it offers impressive light output, making it ideal for various shooting situations. The weather-resistant construction with 28 seals protects the device from splashes and dust, making it an excellent choice for use in demanding conditions. The flash features P-TTL control for precise exposure, as well as a motorized zoom reflector and a tiltable reflector that support creative lighting designs. Additionally, the AF-540FGZII AW includes an LED light that is perfect for video recording, further enhancing the versatility of the device.
- P-TTL control for precise exposure
- Motorized zoom reflector for flexible lighting design
- Splash and dust resistant with 28 seals
- LED light for video recording
- Wireless slave operation for added flexibility.

3. Pentax Flash AF 180 FG
The compact flash unit AF180FG is a valuable accessory that not only brings light to dark spaces but also offers creative possibilities for image composition, such as using it as indirect flash. It supports the P-TTL function of Pentax digital SLR and GR III cameras, providing precise exposure control. The AF180FG flash unit is compatible with all PENTAX digital SLR K-series camera bodies and RICOH GR III models. Guide number 18 (at ISO 100).
