This B&H Kit of the SLR Magic 10mm T2.1 HyperPrime Cine Lens with 77mm Variable ND Kit provides you with a variable neutral density filter for greater exposure control when capturing your footage. Advantages of a variable ND over a set of NDs include being able to make minute adjustments in increments of less than a 1/3rd of a stop as well as making quicker adjustments than having to swap out different filters.
The included 10mm lens covers Four Thirds-sized sensors, provides a wide aperture range to choose from and is meant to work with cameras that have an MFT mount. The lens's non-rotating front allows you to use a polarizer or variable polarizer while avoiding unwanted exposure shifts or polarizing effect changes when focusing your lens.
Joining the other MFT mount SLR Magic Hyperprimes is the 10mm T2.1 Hyperprime Cine Lens. Designed specifically for use with MFT mount cameras with Four Thirds sized sensors the lens strikes a useful balance between size, form, and function. The 10mm lens features sharp images exhibiting little corner and edge distortion, even when the iris is at its maximum opening of T2.1.
The lens' Cine designation refers to the geared focus and iris rings, which feature 0.8 pitch teeth for compatibility with film style follow focus units. The clickless iris ring allows you to adjust the aperture during the shot for smooth iris pulls. The front of the lens does not rotate as you change focus, and is threaded to accept threaded 77mm filters or filter rings.
The SLR Magic 77mm Self-Locking Variable Neutral Density 0.4 to 1.8 Filter is a solid variable neutral density filter that is designed to mount onto lenses with 77mm front filter threads and provides an exposure reduction of 1.3 to 6 stops. The 0.4 to 1.8 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. The degree of density is easily controlled by rotating the front filter ring, helping you to predetermine the additional exposure length required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily. For easier, repeatable control over density settings, the front ring is visually demarcated with numbers representing different density values and includes a rotation lever to further enable fast and precise positioning of the front ring. Once the front ring is rotated into a position that corresponds to the desired amount of density, the filter's rear ring can then be turned to lock the front ring into place, helping to ensure consistent exposures.
This filter is constructed from optical glass for clarity and color fidelity. It is multi-coated to prevent internal ghosting as well as reflections and also features an 86mm mount which helps to reduce the likelihood of vignetting when used with wide-angle lenses.