This Gradual Neutral Grey reduces the total amount of light reaching the film, but without affecting the colour balance. It restores the balance between the main subject & the foreground/background. ...

Progressive graduation from the bottom to the top of the filter, same colour & tone than 121. According to the classic rules of landscape layout, the sky occupies 3/5 of the space above the line of horizon, whether real or imaginary. In photography, this is interpreted by major differences in luminosity between the sky & the rest of the image. COKIN Graduated Filters, by reducing the difference, re-balance the luminosity between the upper & lower part of the image. They put an end to disappointment from washed-out skies & underexposedlandscapes. Since the sky & the clouds are changeable & varied, Cokin Graduated Filters invite you to imitate them in your own interpretation of colours. ...

The Cokin P121L is a very light gradual filter, with the same colour but lighter tone than standard 121. The P121L Gradual Grey reduces the total amount of light reaching the sensor without affecting the colour balance. It restores the balance between the main subject & the foreground/background. ...

Cokin graduated ND filters are just the ticket for landscapes where the sky is particularly bright -and thus susceptible to being over-exposed
- or when you want a darker, moodier sky. The filter retains normal colour balance across the visible spectrum, with a progressive graduation from the middle to the top of the filter. For those familiar with the Cokin line, the P121M filter has the same colour as the 121 filter, but a lower tone.
...

The Cokin P1215 filter has a progressive graduation from the middle to the top of the filter, with the same colour as tone the 121 filter. ...

This ND plain filter reduces the amount of light reaching the film, but without affecting the colour balance. Equivelant to a 1 stop Shutter speed/ Aperture decrease. ...

Without altering colours, the Cokin P153 NDX4 Neutral Density Filter corresponds to a loss of light equivalent to two stops, allowing you to gain the 2 apertures you need to allow you to play with backgrounds, distance & depth of field, or to use a slower shutter speed you need to give an impression of motion. ...

This ND plain filter reduces the amount of light reaching the film, but without affecting the colour balance. Suitable for a 3 stop Shutter speed/ Aperture decrease. ...

This filter will increase the colour saturation of blue skies, removing the unwanted reflections from non-metallic surfaces such as glass & water. Use an angle of 45° from the subject & turn the filter into the holder to adjust the polarising effect. ...

Particularly designed for cameras with a polarising half mirror (split beam metering) & Digital cameras. This Polarising filter increases the colour saturation of blue skies & removes unwanted reflections from non-metallic surfaces such as glass, water, et cetera. The polarising effect can be changed by rotating the filter in the holder. ...