The individual components of our filter kits briefly explained
The versatile polarizing filter
The first important type of filter that you should not do without is the so-called polarizing filter, also known as polarizing filter and CPL filter. Polarizing filters make it possible to remove unwanted reflections from various surfaces such as glass, grasses, water and leaves. For meadows and trees, this filter provides a richer and more contrasting landscape, as shown in the picture below. With glass, a polarizing filter almost completely eliminates the reflections.
The effect is not always the same and depends on different factors. For example, the CPL filter can be rotated on the lens to change the intensity of the effect. The effect itself is caused by light waves oscillating in a certain direction. This direction is also called the polarization direction of light. A polarizing filter is coated in such a way that it only allows light of a certain polarization to pass through. This means that it swallows about 2 apertures of light, but also reduces unwanted reflections.
A must in photography, the grey filter
A grey filter is screwed or plugged in front of the lens to reduce the light hitting the camera sensor. This principle can be compared to that of sunglasses for the human eye. The effect allows longer exposure times and many interesting pictures to be taken. A grey filter can be used to achieve various creative effects, such as the disappearance of people in busy places. As a rule of thumb, the darker the grey filter, the stronger the effect in photography. Some effects that can be achieved with an ND filter are listed below:
- Architecture shots (making moving people disappear)
- Wipe effects (waterfalls, flowing waters and waves have a silky effect)
- Traces of light (moving cars)
The grey filters we offer are made of a high-quality optical glass, which reproduces the colours neutrally. This allows the motifs to be captured under different lighting conditions without appearing overexposed.
In which strength should one choose ND filters?
We have created a table that shows which ND filters should be used in which situation. Below you can see which filter has which neutral density, increases the shutter speed and darkens by how many apertures.
|ND4 Filter||The ND4 filter is used in moderate light conditions and is suitable for rainy and stormy days. They are also used at sunsets, sunrises and when the sun is at its zenith.|
|ND8 Filter||The ND8 filter is used on sunny days and when the sky is slightly cloudy.|
|ND16 Filter||The ND16 filter is the standard filter for sunny days.|
|ND32 Filter||The ND32 filter is used on sunny days when there is a lot of light.|
|ND64 Filter|| |
The ND64 filter should be used for snowy landscapes on sunny days, reflective water surfaces or similar.
|The ND1000 filter is mainly used in landscape photography to create blurred clouds and soft water.|
Correction factor shutter speed
How do I photograph with a grey filter?
- Screw/clamp the grey filter onto the camera lens
- Mount the camera on a stable tripod
- Selecting and focusing the image section
- In the best case the camera should be in balance
- Turn off the image stabilizer, if present
- Use the autofocus to focus on the image section and then switch to "manual".
- To avoid blurring of the image, always use a remote shutter release or time shutter release
Basically, this manual shows the typical steps that should be followed for a long exposure. Of course, this manual should not be considered rigid, but it is a good approach for beginners as well as for professionals. If you want to capture a certain subject, it is recommended to calculate the exposure time values with the help of the above table, so that the subject is not already gone when you set the exposure. This is especially useful if the exposure is longer than 30 seconds, because then the bulb mode must be activated.
The gray graduated filter and how it works
Gray gradient filters (GND filters) are a special type of gradient filters that are transparent at one end and darkened at the other end. In the middle of the filter the two areas converge, from clear to dark. This transition is different depending on the type of GND filter. The different types are described below. These filters are primarily used to balance the exposure of a scene which in landscape photography naturally consists of a dark section (foreground) and a bright section (sky). A human eye is able to visualize a much larger range of light and shadow than the sensor of a camera. This is called the "dynamic range" of a scene. Since the camera covers a smaller dynamic range, the use of GNDs helps to capture the dynamic range of a scene with one exposure instead of combining several shots with different exposure times in post-processing.
How do the types of GND filters differ and when should they be used?
Soft GND filters
These filters have a very smooth transition from transparent to dark. They are suitable for scenes that have a wide or interrupted transition from the sky to the actual foreground. An example of a scene that should be shot with a soft GND filter is a mountainous landscape crossing the horizon line. A rock formation in the sea is also predestined for photography with a soft GND filter.
Hard GND filters
These types of GND filters have a hard transition from clear to dark. They are suitable for scenes that have a highly visible transition from the sky to the actual foreground. This filter is most useful for landscape shots in which no elements project beyond the horizon, for example, shots of the sea with a wide view of the ocean. These filters can also be used when a hard transition against the sun is advantageous.
Reverse GND filters
Reverse GND filters with an "inverted transition" are similar to the hard GND filter except that the darkest part of the filter is in the middle. These filters are for shots taken against a light source and where the light is most intense at the horizon.