Universal Studio Soft Box Flash Diffuser for Pop-Up Flashes and External Speedlites by ENHANCE - Works With Pentax , Panasonic , Olympus and More Cameras Dimensions are 3.75 x 3.75 inches in front with reflective inner compartment for strong, even light Diffuser spreads the light to give you even illumination, helping to eliminate harsh reflections and shadows. Pops open and is ready for action in seconds for your Pentax K-70 , K-1 , K-3 II , K-S2 / Panasonic Lumix DMC-G7 , GX8 , FZ300 / Olympus Stylus Stylus 1s , PEN-F , OM-D E-M5 II & More Digital Cameras Stretch opening allows you to connect the diffuser to most shoe mount flashes. Ultra-compact design fits in your pocket for easy transportation.