Godox Lux Junior Retro Camera Flash is a diminutive hot shoe flash with vintage-inspired design. Compatible with Fujifilm, Canon, Nikon, Olympus, and Sony cameras, this compact 2.9" x 2" x 2.8" flash features basic manual and auto modes with 7 power levels - small enough to keep regularly mounted on your camera. Key Features: Guide Number: 39.4' at ISO 100 7 output levels: 1/1 to 1/64 power Manual and Auto modes Fixed 28mm coverage Power, ISO, stops, distance dial Optical slave modes (S1 and S2) Vintage-inspired black finish design Compact size: 2.9" x 2" x 2.8" Runs on 2 x AAA batteries (not included) Includes triggering cable and storage bag Best For: Film camera photography Compact flash for everyday carry Manual flash photography Vintage camera enthusiasts Travel and street photography Backup or secondary flash Photographers seeking retro aesthetic Compatibility: Fujifilm, Canon, Nikon, Olympus, and Sony cameras with standard hot shoe. How It Works: Simple dial correlates ISO with apertures, power levels, and shooting distances. For example, to shoot at 5' with ISO 400, the dial lines up f/4 and 1/8 power. Auto Mode defaults to f/2.8 at ISO 100. Optical modes (S1/S2) allow wireless triggering from other flashes. Note: Requires 2 x AAA batteries (sold separately). Includes triggering cable and storage bag. Ships fast from Texas.