Neutral Density filters are the most commonly used along with C-PL and UV filters. These filters, instead of the ones that protect the lens from damage or UV pollution, were created to decrease the volume of the light entering the lens. True ND filters decrease light equally to achieve the same density through the all visual spectrum giving no changes in colour balance of the image. That is why the called Neutral Density. We have already entered the era of super high sensitivity, super high resolution photographic equipment. Obviously, the power of this huge sensor can easily be affected by lenses and other optical accessories that are located right on the path of the light entering the camera. In other words, the filter quality serves as the front "gate" for the light to enter and is of the utmost importance. In particular, ND filters have become a must for high sensitivity cameras with ISO settings that starts from 200 or 100. This is the reason that ND filters currently garner a high level of attention and have strict quality requirements. Professional photographers requires ND filters that decrease light volume in the most natural and harmless way. When to use ND 32/64/100/200 filtersKenko REALPRO ND 32/64/100/200 presents neutral density filters of the highest quality that are designed to be used with the latest DSLR high sensitivity cameras that will allow photographers to realise photos with the shallow depth of field achieved with a wide open aperture during sunny days or with objects that are relatively blurred. Kenko 77mm Realpro MC ND1000 filters are recommended for use with landscapes, city snapshots, video, and nature genres during sunny days while using a wide open diaphragm to prevent overexposure and achieve a shallow depth of field when it is necessary to separate foreground objects from the background. For landscape photography the use of a ND32 (or higher) density filter is advised, although your choice depends on your personal purposes and work goals.
