Giotto Rocket Blaster Dust-Removal Tool (Small) SIGMASN 4 maximum aperture is well-suited

4 maximum aperture is well-suited to photographing in difficult lighting conditions and also affords greater control over focus placement when using selective focus techniques

Two 1/4inch-20 threaded accessory holes

With a 400mm equivalent focal length on Micro Four Thirds cameras

Extra Low Dispersion and Super Extra Low Dispersion lens elements provide sharp imaging at all focal lengths and apertures and minimize chromatic aberrations

including soft or uneven soil

Giotto Rocket Blaster Dust-Removal Tool (Small) SIGMASN 4 maximum aperture is well-suitedThe small Giottos Rocket Blaster Dust Removal Tool safely blows clean air to eliminate dust from sensitive or hard to reach surfaces, such as those on lenses, cameras, filters and keyboards. It is crafted from a durable silicone rubber that offers a virtually instantaneous rebound for a nearly continuous stream of clean air. Its long, thin nozzle features an opening designed to eliminate whistling, and can also be removed for cleaning. A one way valve