Description of the article: This gray gradient filter is part of the LEE-Filters SW150 system. The SW150 system is primarily intended for lenses with a very wide angle of view. This applies above all to wide-angle lenses with a focal length of less than 16 mm. The filter can be attached to almost any lens using a compatible filter holder and corresponding adapter rings. This offers the great advantage that you can use the filter for all your lenses. All you need is a suitable adapter ring for each lens.
A gray gradient filter has a clear and a neutral gray half. The gray half reduces the amount of light entering the lens. The clear half lets the light through unhindered. All of this helps to achieve an even exposure when photographing subjects with widely varying ranges of brightness. One possible scenario is landscape shots where the ground is dark and the sky is bright blue. But there are also other constellations. Normally you can only choose the right exposure for one area of the picture. As a result, the other image area is inevitably either underexposed or overexposed. Underexposed image areas usually appear too dark, while overexposed image areas often appear washed out and lacking in contrast. The gray half of the filter can be used to darken the lighter area of the image in order to then set the appropriate exposure for the darker area of the image. This helps to take pictures in which the entire image area is evenly exposed.
There are numerous variants of LEE graduated gray filters. There are different versions with differently dark gray areas. Filters with a very dark gray area are suitable for motifs in which the difference in brightness between the light and dark areas of the image is very pronounced. Filters with a lighter gray area are used when the difference in brightness is rather small. Apart from the different shades of gray, there are also gray gradient filters with gray gradients of different hardness. Filters with a very hard gradient border, i.e. with a very abrupt separation between the clear and the gray area, are suitable for subjects with a clearly defined and straight horizon. An example of this is water surfaces such as oceans or large lakes. Filters with smoother gradients are suitable for subjects with a less clearly defined horizon. These are, for example, slightly hilly landscapes or landscapes in which there are buildings that rise a little into the sky.
In order for pictures to be successful, you have to line up the gradient boundary with the transition between the light and dark areas of the picture. There are several ways to align the filter's gradient boundary as needed. The matching filter holder can be rotated 360°. You can also move the filter within the filter holder. Because it can be moved, the LEE gray gradient filter offers a significant advantage over a round screw filter. Round screw filters are generally only suitable for shots where the dividing line between light and dark runs right through the center of the image. Thanks to the ability to move the filter within the filter holder, the filter also works for subjects where the dividing line runs off-centre.
LEE graduated gray filters are made in England. Each filter represents an hour of painstaking craftsmanship. The base of each filter is a clear PADC resin disk. This plastic polymer is also known as CR-39. It has first-class optical properties and is also used for the production of spectacle lenses. The disc is repeatedly dipped in a dye bath to build up the gray gradient. The progress is constantly monitored to ensure an optimal result. The end result is a real high-end product that meets the high demands of professional photographers in every respect. It is not without reason that LEE Filters is one of the most renowned brands in the photographic sector.
Technical details:
- Material: Resin ( CR-39 )
- Extension factor: ND 0.6 / +2 f-stops / 4x ( gray area )
- Flow boundary: hard
- Remuneration: Unremunerated
- Edge lengths: 170 x 150 mm
- Thickness: 2mm
Condition: A
The condition information refers to the cosmetic condition of the item and is marked from AA (like - ), to A+ (as new), A (lightly used), B (normally used), C (very heavily used) to D (extreme signs of use). .
If there is no "DEF" (defect) or "LIN" (lens damage) behind the condition information, all goods are in perfect technical condition and have been checked by me as far as possible. Defects or damage are also mentioned separately in the description, if they are known.
Tax class: 3
All prices include statutory sales tax, but due to various types of taxation, this cannot always be shown separately on the invoice. In tax class 1, the sales tax is shown separately on the invoice, in tax class 2 the reduced sales tax and in tax class 3 it is not possible to show the sales tax because the goods are subject to differential taxation, in accordance with § 25a USTG. acts.
Scope of delivery: As can be seen on the original picture(s) in the offer. Other accessories that are not shown are not and cannot be included in the delivery, as they are not available.