The Nisi 4 x 5.65” Range is compatible with all leading brands of matte boxes that fit the 4 x 5.65” standard. The cinema filters also conform with the 4mm thickness allowing them to fit into filter cages or slot into cageless designs. A leatherette pouch is included for storage and transport. Also available is a larger filter case to organize and keep multiple filters at once.
- Reduce Exposure in Selective Areas
- Hard-Edged Transition
- Allows Reduced Shutter Speed
- Allows Wider Aperture
- No Color Cast
- NiSi Optical Nano Coating
- Optical Glass Construction
- Soft Pouch
NiSi is the only company that offers its standard graduated neutral density filters in glass instead of resin. Made from H-K9L optical glass, these filters transmit light much better than resin, producing true-to-life colour and optimal contrast and sharpness.
Landscape photographers use graduated neutral density filters because the sky is usually brighter than the land – especially in dramatic sunset light. Graduated ND filters are dark on the top half and transparent on the bottom half. When the dark part is positioned over the sky of an image, it ‘reduces’ the amount of light allowed through that part of the frame and this results in a darkened exposure of the sky. On the left side of the image, it shows the result without any filter and on the right, it shows the result with the filter.
Graduated ND filters are available in soft, medium and hard and this determines the distance of the transition between the dark part and the transparent part. The softer the graduation, the more even the transition between the darkened area and the normal area. There are also reverse and horizon grads, which are a slight alteration. Read below to find out more or browse the product images to see classic examples of ideal situations for each grad type.
- Soft Grad –These filters are typically for scenes with a very dynamic horizon, like landscapes with trees or high mountains. Soft grads are the most forgiving and easiest for beginners to use.
- Hard Grad - These filters are typically for scenes with a straight and uniform horizon, like the sea. If a hard grad is not positioned perfectly, it will be clearly noticeable in the image as a dark line below the horizon or a bright line above it. We advise that beginners stick to soft and medium grads.
- Medium Grad – Medium grads are a newer product that most manufacturers only released in 2016/2017. Many photographers often found hard grads too hard and soft grads too soft and thus it was obvious that something in between was necessary. It is also the perfect solution for photographers that don’t want to commit to a hard or soft grad. Not everyone can afford to buy the full range of these filters and the medium grads are an excellent new compromise.
- Reverse Grad – These filters serve a very niche, but useful purpose. When shooting into a bright sunset/sunrise, the brightest area is right on the horizon and then the sky darkens towards the top. When using a normal graduated ND, it will result in a correctly exposed horizon, but the top part of the sky will be far too dark. A Reverse Grad also has a clear lower half, but it is darkest in the middle and then gets lighter towards the top. This allows one to more accurately balance those exposures that are brightest on the horizon.