Use up to three filters creatively
Our sturdy filter holders as mentioned earlier are finished with a matt black, anti-reflective surface. In addition to that, they hold up to three 100 x 150mm or 100 x 100mm rectangular filters, such as the Kase GND filters or the Kase ND filters. If you want to work with larger lenses, you should opt for the K150-170 filter holder, which can be used with a round 150mm CPL filter and rectangular filters with a width of 170mm. In the following we have listed the advantages and disadvantages of round filter systems and rectangular filter systems. Both methods have certain advantages and disadvantages, but in the long run a rectangular filter holder system is certainly the better choice for your camera.
Advantages and disadvantages of round filters:
+ Less complicated
+ Almost no further accessories necessary
- You need different filter diameters for different lenses or a lot of adapters
- Difficult to attach or remove
- Vignetting is possible, especially if several filters are used (e.g. polarising + ND filter)
- No round GND filters available for e.g. sunsets
Advantages and disadvantages of filter systems with filter holders:
+ Filters can be inserted and removed very quickly and easily
+ GND filters available and easily adjustable
+ The filter holder can be quickly interchanged between lenses, through adapter rings also for lenses with other diameters
+ Multiple filters can easily be used simultaneously
+ No to hardly any vignetting, as the filter is significantly larger than the lens
+ Round filters can be used inside the holder, even in combination with rectangular filters
- You need a complete system to use the filters
- Lens hood cannot be used
The Kase K9 holder made of milled aluminium has three spring-loaded mounting rails each for rectangular filters. This means that all three filter slots are available for flexibly positionable rectangular filters. Of course, you can mount the filter holder on almost all common lenses that have a screw thread.
CPL filter included in the kit
The K9 Kit also includes our 90mm magnetic circular CPL filter. It is a circular polarising filter, as simple polarisation with modern DSLRs cameras can lead to incorrect measurements. Basically, a polarising filter enhances colours and contrasts and filters out reflections and specularity.
One of the most important things for photographers is, of course, a very sharp image and this is exactly what the quality of our coating offers you. It is so fine that even with high-resolution cameras with 150 megapixels there are no problems with the resolution of the image. The very high reflectance of 99.5% of our filters also supports you on your way to the perfect picture.
In which situations is a polarising filter useful?
A polarising filter is always used in photography when reflections are to be avoided. The following scenarios are common:
Enhancing colours in landscape photography
A common problem in landscape photography: Especially on cloudy days, the different green tones of trees and grasses often look very similar. With a polarising filter, bright colours can be achieved here.
The reason for this is that leaves also reflect the sky. The surface does not reflect as much as water, for example, but the white of the sky is still slightly reflected here. As a result, the green tones do not appear as strong as on a beautiful sunny day. However, a polarising filter can then be used to remove the reflections and thus capture a very colour-intensive image.
This effect can be used in most areas of nature photography.