Promaster 6490 AHDBT-301 GoPro Battery Modifier & Reflector Accessories In this case two floating

In this case two floating focus groups are driven by independent DDSSM systems for precision positioning of the relatively heavy lenses required for macro photography

1 x PC Sync Socket Output

FitsLenses

Ambient Light Smart Control: the intensity or amount of ambient light surrounding your workspace affects the way you perceive colors on your display

Even with A3+ paper capabilities

Promaster 6490 AHDBT-301 GoPro Battery Modifier & Reflector Accessories In this case two floatingFeatures: PROMASTER batteries are a high quality, long lasting power source for your digital camera or camcorder. All PROMASTER replacement batteries are manufactured to meet or exceed the equipment manufacturer's specifications. Specifications: 3. 7V 1050mAH Replaces Go Pro AHDBT 301 battery.