Mark II ND rectangular filter - neutral density filter 100 mm

Gray filter 100 mm made of Gorilla Glass

The Rollei professional ND filter 100mm are gray filters with a neutral gray tint in a rectangular shape - so-called Rectangular filter. The abbreviation ND stands for Neutral Density, with which one light tightness is meant. Colloquially there is also talk of swallowing light, because it r ND filters the amount of incident light is reduced.

This is done by uniformly darkening the filter glass into neutral gray, which is also the alternative name „Gray filter“ explained. It is particularly important that the ND filter Despite the gray tint, it remains color-neutral and translucent, which the Rollei gray filters guarantee thanks to Gorilla Glass and special multiple coatings.

The ND filter The Mark II generation from Rollei is available in different intensities / optical densities. This is relevant in conjunction with the exposure time and the aperture setting. The ND1000 rectangular filter has 10 stops, which means the amount of light is reduced by 10 stops.

Overall, the Rollei ND Filter Mark II has the following intensities: ND8 (3 stops), ND64 (6 stops) and ND1000 (10 stops).

Long exposure with gray filters

Many situations lend themselves to one Gray filter to be used sensibly. For example, flowing movements that the human eye cannot perceive in an image. Through ND filterr you can do that Increase shutter speedto achieve certain effects. For example, depict flowing movements.

Fog showers, rivers, waves, lakes, streams of clouds are all typical situations in which you can experience ND filters can work. The flowing movements are captured by the slow shutter speed and the light is swallowed up by the gray filter to create a gentle, soft and calm image in which the movements can still be perceived.n.

ND filter made of high-quality Gorilla* glasss

Rollei is committed to its particularly high quality Rectangular filter on Gorilla®*-Glass back. The filter glasses in the current production series are therefore not only extremely weather-resistant, but also do not lose their optical properties even if they are treated carelessly or extremely roughly. The special treatment of the gorilla®*-Glass A precisely planned exchange of ions starts directly at the molecular level through a bath in boiling hot alkaline solution, which not only better protects the raw material against mechanical pressure, but also significantly counteracts cracks and scratches through increased surface tension. Even in the event of deeper damage, the coating prevents further material splintering at the edges..

gorilla®*-is glass already “inherently” particularly translucent and distortion-free. The special type of glass ensures that these excellent optical properties are not affected by dirt or damage. In addition, the filter glasses benefit from the special coating developed by Rollei, the quality of which is regularly and strictly monitored.

It's not just demanding photographers who benefit from the exceptional properties of gorilla®*-Glass, displays on premium smartphones and tablets are also made from this particularly durable material. The American company Corning Inc. can look back on more than 160 years of experience in the production and treatment of special glasses and optics. The Rollei rectangular filters can therefore be made from Gorilla* glass that is only 2 mm thick and, despite being particularly low in weight, effortlessly meet all the quality requirements that we place on Rollei professional filters..

Gau filter with special luminance coating

Reflections can give photos a unique look or ruin them completely. In order to use these optical effects in a targeted manner, one must safely prevent their accidental occurrence. For this purpose, Rollei is now relying on a specially developed special treatment for our particularly high-quality filter glasses. The extreme light transmission and color fastness are not affected..

The special procedure is based on Rollei's very precise specifications, compliance with which is constantly checked and can also lead to the rejection of entire deliveries. This coating is also ideal for the already extremely resistant, neutral and brilliant  gorilla®*-Glass our professional rectangular filters.

As a photo professional or demanding hobby photographer, you benefit twice over. You don't have to worry about possible reflections when choosing a location and you can rely on the impressive weather resistance and robustness of the additionally coated Rollei rectangular filters gorilla®*-Glass even in extreme situations. Even bad bumps or accidental contact with sharp and pointed objects have surprisingly little effect on the coated and color-neutral filter glasses.

The optical tolerance values ​​leave no room for quality defects: the color curves of the lenses must behave absolutely homogeneously in the range from 400 to 800nm, otherwise they cannot bear the Rollei name. You can add reflections, color shifts or special effects later - the image material provides a neutral, reflection-free and distortion-free basis for your creative ideas.r.

ND Filter Engineered And Quality Controlled in Germany

Quality is not a one-time event, but a continuous process that must be constantly improved and adapted to the wishes of customers and the possibilities of technology. Therefore, after careful and intensive preparatory work, we at Rollei have introduced an exceptionally strict quality management system that permanently ensures the high quality of our professional filters. As "Engineered And Quality Controlled in Germany", this QM strategy documents various procedures and framework conditions that far exceed standard industry specifications. We proceed in an extremely structured manner and leave no result to chance:

Rollei's specifications and quality expectations underlie all subsequent production steps.

The particularly high-quality Rollei rectangular filters for photo professionals and demanding amateur photographers cover optical properties that could not be guaranteed at the same time with lower quality guidelines. Therefore, all criteria must always be met at all times; compromises in one discipline would immediately affect other aspects. The release of new production samples is consequently exclusively in the hands of Rollei's filter specialists.

For Rollei, series production in no way means a relaxation of expectations. Before the production batches are delivered, there is merciless quality control according to the AQL principle (Acceptance Quality Limit): If a precisely calculated quantity of randomly tested products falls through the cracks, the entire batch is received no release..

The filters delivered must then pass a final inspection at Rollei in accordance with the strict AQL specifications before the products can finally be delivered to retailers and end customers.n.

In view of the already extremely high-quality raw materials and taking into account the comparatively large amount of rejects, the quality principle "Engineered and Quality Controlled in Germany" may seem a bit too strict for some customers, but you can always rely on the quality of your professional filters, even in particularly demanding shooting situations Leave Rollei..

*Note: Gorilla®-Glas is a protected word mark of the Corning company and is used by us for our filters. All naming rights belong to the Corning company..

Technical data

 *Note: Gorilla®-Glas is a protected word mark of the Corning company and is used by us for our filters. All naming rights belong to the Corning company..

scope of delivery

• 1x Mark II ND filter 100 mm
• 1x case
• 1x cleaning cloth