What do you get with our Kase Round Filter Set?

With the Entry Level Round Filter Kit you get one each:

• Magnetic CPL (polarising filter)
• Magnetic ND8 Filter
• Magnetic ND64 Filter
• Magnetic adapter ring
• Magnetic lens cap
• Filter bag

With the standard round filter kit you get one of each:

• Magnetic CPL (polarising filter)
• Magnetic ND1000 Filter
• Magnetic Soft GND 0.9 Filter
• Magnetic adapter ring
• Magnetic lens cap
• Filter bag

With the Round Filter ND Kit you get one each:

• Magnetic CPL (Polarising Filter)
• Magnetic ND8 Filter
• Magnetic ND64 Filter
• Magnetic ND1000 filter
• Magnetic adapter ring
• Magnetic lens cap
• Filter bag

The filter kits can be cleaned super easily and are therefore quickly ready for use again. They can also be mounted in no time at all, so that even inexperienced photographers can benefit from these filter. But magnetic round filters are also extremely interesting for professional filmmakers. Control reflections and light just as you need them and produce impressive shots.

Thanks to the oil- and water-repellent coating, the filter can also be used outdoors and is fully functional. Ensure breathtaking shots that will leave you in awe. With the included filter bag, you can transport the filters safely. Through which you remain mobile and flexible despite the most diverse filters. You can order the filters from us in the following diameters: 67 mm, 72 mm, 77 mm, 82 mm, 95 mm.

Your advantages at a glance:

• Unique colour control
• Lightning fast assembly
• Made of high quality optical glass and aluminium
• Oil- and water repellent multiple coating
• Includes a magnetic lens cap to protect filters and lenses

Overview of the different types of filters and their effects

There is a wide range of different camera filters on the market. They range from infrared filters for black and white shots to grey gradient filters for the most beautiful sunsets to simple grey filters that reduce the light hitting the camera sensor. The most common filters on the market are the ND filters, grey graduated filters and polarising filters. What these camera filters can be used for and for which motifs you should use them, we have described for you in more detail below.

The ND filter - the sunglasses for the camera

With grey filters, the exposure times of the camera can be artificially extended. You can find out exactly how much in the table below. ND filters are also called grey filters. This is used to darken the image. Why this can be advantageous is relatively easy to explain: the exposure time depends directly on how much light hits the camera's sensor. In most cases this is not a problem, in bright sunshine you simply set the exposure time very short, at dusk accordingly longer.

But there are also pictures for which a longer exposure time is advantageous. For example, if you want to capture how the water of a waterfall flows, a longer exposure time is needed. If, on the other hand, the exposure is short, the waterfall will look frozen in the photo. To ensure that the picture does not simply turn white despite the brightness and the longer exposure, you can use an ND filter. We offer these in a wide range of strengths. The greater the strength, the darker the filter and the longer the exposure time.

The grey gradient filter - for landscape photography

Grey graduated filters are glass filters that are clear on one half and darkened on the other half. These two areas converge in the middle of the filter, from dark to clear. This transition varies depending on the type of filter. GND filters are used to match the exposure of a scene, which, especially in landscape photography, consists of a brighter section (the sky) and a darker section (the foreground). In this process, the human eye makes it possible to visualise a wide range of light and shadow. This is also called the dynamic range of a scene. Unfortunately, today's camera sensors are not able to reproduce the dynamic range as the human eye is able to. To give the sensor a leg up, the use of GND filters can help. This makes it possible to capture the dynamic range of a shot with a single exposure.

The circular polarising filter - for the most beautiful contrasts

More intense colours and avoidance of unwanted reflections - the circular polarising filter, or polarising filter for short, is the perfect helper when photographers want to capture landscapes or water. The circular filters ensure that, for example, a meadow of flowers becomes more colourful, a blue sky more contrasting and a green meadow greener. Furthermore, such a filter prevents reflections, for example on a lake or on glass surfaces. This filter becomes indispensable especially when fish are to be photographed below the water surface.

What is also very practical: if the filter is mounted in front of the lens, the effect of the filter can already be seen when taking the photo and can be intensified or weakened on the filter itself by turning the filter disc directly on the lens. Sunglasses also sometimes work with polarised glass. When these are worn, the sky suddenly appears bluer and the sea turquoise.

How do you photograph a waterfall using a grey filter?

To avoid waterfalls appearing too soft and smooth in a photograph, the exposure time should be between 1 and 5 seconds, depending on the flow speed of the water. Select the grey filter in such a way that the exposure time is approximately this long. The exposure time can then be calculated manually, using a table as shown below or a suitable app. It is even easier to set the correct exposure time using the histogram. If all dark and light parts of the image are covered within the histogram and there are no outliers to the right or left, the result will be a correctly exposed image with optimal use of the dynamic range, so that there are still reserves available in post-processing without major losses in quality.

Taking a picture with a grey filter of a waterfall is therefore done according to the following steps:

1. Mount the camera on a tripod
2. Align the camera with the desired image section
3. Insert the appropriate grey filter
4. Adjust the exposure time to the image section
5. Check the histogram
6. Zake the picture

The shutter should be released either by remote release with cable or wirelessly via a suitable app. Of course, pre-triggering with a 2 or 10 second delay is also possible. Above all, it is important that the camera is completely still and therefore a good tripod is used.

Can polarising filters and ND filters be combined?

Especially if water is to be photographed, it is often useful to combine the grey filter with a polarising filter. To do this, first screw the polarising filter onto the lens and then adjust it. Then screw the grey filter onto the lens. Make sure that the polarising filter is not adjusted again.

Table for our ND filters, for calculating the correct exposure time

Below we show you a table that is useful for using our grey filters. It shows which neutral density filter causes which lengthening factor of the exposure. It also shows the reduction of light incidence in f-stops, as well as the value of the neutral density.