Characteristics of Creation Variable ND using polarizing film

Marumi Creation Variable ND Series combines two polarizing films to achieve step-less light reduction effects.

Due to the characteristics of the polarizing film, Marumi Creation Variable NDs have the following characteristics. Please use them after understanding in advance.

1. The light reduction effect changes gently from the Min. position and rapidly as it approaches the Max. position.
2. X-pattern* will happen.

(Non X-pattern/X-pattern image, Marumi Creation Variable ND2.5-256/V)

・X-pattern* (or frequently described as X-mark) is a phenomenon in which X-shaped picture unevenness occurs on the screen as the density increases. (See the above X-pattern image)
The occurrence of X-pattern is in principle unavoidable for all variable ND systems that use polarizing films.

・The figure below shows a guideline for the focal length where X-pattern is less noticeable.
(CREATION VARIABLE ND2.5-256/V and CREATION VARIABLE ND40-4000/P)

・X-pattern becomes more noticeable at focal lengths in the wide-angle range.
The focal length that makes it more noticeable depends on the subject and how the individual feels, but we recommend that you use a focal length of 24 mm or more. It also depends on the lens you are using, so please check with your lens.
・The X-pattern becomes less noticeable as the focal length increases. It also depends on the lens you are using, so please check with your lens.

・The figure above shows a guideline for the focal length where X-pattern is less noticeable.
(CREATION VARIABLE ND2.5-500/Basic)

Thank you for your attention!

Marumi team