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The just-fit frame with screw type mount secures the filter on the camera, and the allweather protective case will allow using these filters in different shooting conditions.
Why IRND Filters are so important
Shutter Speed
For natural and smooth looking motion In video shooting, it is fundamental to keep the shutter speed fitting the frame rate setting, that is, to keep it equal to double the frame rate for optimal results. This is because, unlike still photography, an excessively fast shutter speed may create a jarring effect and produce afterimages that will not look good at all in the final video.
As you can see from the image below, unlike still image, video clip is made of a sequence of still images. With low shutter speed, each still image will blur but will look smooth in the video sequence. On the contrary, a higher shutter speed will capture the object solid and sharp, but once in a video sequence all objects will appear separated, creating jarring and unnatural looking motion.
By using IRND filters, the shutter speed can be adjusted to the proper value to get that natural and smooth looking motion requested in video footages, as shown in the image below.
Aperture for optimal exposure
Drones are mostly used outdoors in day time, high-lit environments. Since DJI MAVIC AIR is equipped with a camera module that has a fixed aperture of F2.8, and ISO setting should be set at the minimum level of ISO100 for image quality sake, IRND filters are strongly suggested as a necessary ad-on accessory to control the shutter speed and achieve optimal exposure.
The image below shows the difference between an overexposed video footage and a video shot with appropriate shutter speed setting during a sunny day in a snowy mountain area.
Accurate Neutrality
High-quality IRND filters are required to be extremely and accurately neutral to prevent color shift or IR pollution from affecting the final image.
Accurate neutrality of Kenko IRND filters is achieved by adopting Accu-ND Technology that is exclusively developed for DSLR camera filters. Accu-ND Technology provides constant and fine-adjusted light density within a wide spectrum range, including the infrared area (400nm-1000nm).
Just-Fit Frame and Screw Type Mount
Made of ultra-light aluminum allow to reduce the load on the camera, Kenko IRND filters are designed in an exclusive just-fit in size frame that does not affter the gimbal and flight performance of the drone.
The knurling edge on the frame also aims to provide quick and secure attaching. The screw-type mount will not allow the filter to fall off during flight, guaranteeing long time, safe and reliable use.
4 in 1 Kit in All-Weather Protective Case
Kenko Advanced Drone Filters IRND KIT contains 4 filters of different density to choose from depending on the light conditions at the shooting location. Choosing the right density value will allow fine adjustments of the camera setting according to the different light conditions, thus avoiding diffraction and obtaining optimal exposure of the image.
Also, for better and convenient utilization in outdoor environments, Kenko Advanced Filters IRND kit comes within an all-weather case that will keep filters all together and protect them from moisture and dust, rain or snow.
Easy To Maintain
Anti-reflection multi-layer coating of Kenko IRND filters is blended with a water-repellent layer. This ensures protection from fingerprints, smudges, dust, thus making filters easy to clean and maintain in ready-to-use conditions.
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