JJC: Dear customer, JJC LED-60 works with Panasonic Lumix DMC-GH4. The included 58mm adapter ring works with Panasonic Lumix G X Vario 12-35mm f/2.8 Asph. lens and Panasonic 35-100mm f/2.8 Lumix G Vario Zoom lens. But you need RLA-46MM adapter ring (sold separately) for your 25mm lens. Besides, we’d like to remind you that JJC LED-48IO/LR uses an external power source and the light ring is lighter than LED-60. So it is more suitable for small lenses.