K100 Series Filters (2mm)

ND (Neutral Density) neutral density filter
ND neutral density filters are used when shooting at slow shutter speeds, to control the exposure time of a scene at the time of capture. The gray filter therefore influences the amount of light that penetrates to the sensor. The extent to which depends on the strength of the ND gray filter used. Gray filters do not affect the colors in your photo, making it easier to work with a longer shutter speed or an open aperture. In addition, Kase filters have precise IR coatings, which provide a true neutral color within a captured image, without the color cast normally associated with slow shutter speed photography.

Characteristics

R-GND (Reverse Graduated Neutral Density) Reverse gray gradient filter
R-GND gray gradient filters have a gradient that varies in strength and density across the surface of the glass filter. Half of the filters are clear and the other half is a GND gray gradient filter, which becomes lighter at the top. When photographing with long shutter speeds, it is important to be able to control the light. Depending on what you want to block the light from, you can place the gray gradient filter in the correct position. In a landscape scene the sky is normally brighter than the foreground and at sunrise/sunset a fairly narrow beam of light around the sun is much brighter, so an R-GND filter is placed in front of the lens and moved to a position where the brighter part of the scene is covered by the R-GND filter and the margin between sky and sun, along with the margin between the sun and foreground, are blurred using the transition zones of the R-GND filter. The scene is normally metered for the highlight area and shadow area and the difference in stops dictates the strength of the filter used. Using an R-GND filter avoids the heavy darkening sky normally associated with using stronger GND filters in sunrise/sunset scenes, the transition zones are normally soft.
 

A CPL (circular polarization filter) is a handy filter that ensures that, for example, reflections, glare from water and reflective surfaces are removed from the photos. The CPL helps increase saturation levels, making 'outdoor' shots sharper, with deeper colors in, for example, a blue sky or water.

Characteristics

Kase Wolverine KW100 100x150 Double Grad; Medium GND0.9 + Reverse GND0.9
This filter is specially created to compensate for the uneven exposure caused by the light difference between the top and bottom parts of the photo during the shooting process.
The medium GND 0.9 is used to balance the ground and the side with the Reverse GND 0.9 is used for photographing sunrise and sunset.
GND (Graduated Neutral Density) gray gradient filter
GND gray gradient filters have a gradation (gradient) that varies in strength and density across the surface of the glass filter. The filters are often half ND gray filter and the other half is clear. When photographing with long shutter speeds, it is important to be able to control the light. Depending on what you want to block the light from, you can place the gray gradient filter in the correct position. A GND gray gradient filter is often used together with an ND gray filter.
The gray gradient filters have different types of transitions, with different application options.
A soft edge S-GND gray gradient filter is best suited for mountainous, forested or urban environments, where the horizon does not have a flat straight transition.
A medium edge M-GND gray gradient filter can also be used in similar areas to the S-GND, but care must be taken as you need to watch out for dark lines that may appear over trees or buildings.
A hard edge H-GND gray gradient filter is best used in open areas where there is nothing on the horizon, such as coastlines and open plains. With a hard gray gradient filter, the transition from light to dark is clear and fast and is ideal for sea and desert landscapes.
 

Kase Wolverine KW100 100x150 Double Grad; Soft GND0.9 + Hard GND0.9
This filter is specially created to compensate for the uneven exposure caused by the light difference between the top and bottom parts of the photo during the shooting process.
The soft GND0.9 and hard GND 0.9 are used to balance the air and ground.
 

GND (Graduated Neutral Density) gray gradient filter
GND gray gradient filters have a gradation (gradient) that varies in strength and density across the surface of the glass filter. The filters are often half ND gray filter and the other half is clear. When photographing with long shutter speeds, it is important to be able to control the light. Depending on what you want to block the light from, you can place the gray gradient filter in the correct position. A GND gray gradient filter is often used together with an ND gray filter.
The gray gradient filters have different types of transitions, with different application options.
A soft edge S-GND gray gradient filter is best suited for mountainous, forested or urban environments, where the horizon does not have a flat straight transition.
A medium edge M-GND gray gradient filter can also be used in similar areas to the S-GND, but care must be taken as you need to watch out for dark lines that may appear over trees or buildings.
A hard edge H-GND gray gradient filter is best used in open areas where there is nothing on the horizon, such as coastlines and open plains. With a hard gray gradient filter, the transition from light to dark is clear and fast and is ideal for sea and desert landscapes.