Think Tank SpeedTop™ 30 Backpack Grip Works with the new NiSi

Works with the new NiSi ND Calculator App for Android and Apple

Using glass-mold aspheric lenses at the 5th and 7th elements is effective to in increasing the maximum aperture (5th element) and reducing the overall thickness of the lens (7th element)

With its compact size

enabling you to run multiple systems simultaneously and features auto frequency scan and infrared syncing

This hood will provide you many benefits: it shades the lens from stray light

Think Tank SpeedTop™ 30 Backpack Grip Works with the new NiSiThe SpeedTop backpack series takes quick access to the next level! The spacious top compartment features a magnetic lid that is easy to open with one hand, yet closes securely with just a quick flip. Inside the top compartment, zippered pockets keep your essential items secure and organized, including a 16 inch laptop and 10 inch tablet, or documents. A large, bottom compartment offers front and side access enabling you to reach bulky items like a