HITECH 165X165mm Resin Pro Stop IRND 3.0
Neutral Density (or ND) filters produce a grey neutral effect and are used to reduce light in photography, enabling more control over exposure and depth of field without affecting color or contrast. ProStop filters are a specialist range of high density ND's used to create motion blur in long exposure shots and can help create startling effects in water, cloud and other moving objects. This filter reduces the light by 1 stop. Formatt-Hitech filters are made from the highest quality 1.5mm optical resin. The 165mm size is useable with the Formatt-Hitech 165mm and the Lucroit holder system. The filter is also available in 67mm, 85mm, 100mm and 150mm sizes.
Introducing the new ProStop IRND from Formatt-Hitech. ProStop, the worlds best selling high density ND filter, has been optimized for digital sensors and reformulated with a nearly flat attenuation of both visible spectrum light and infrared light. This means its the worlds most neutral ND filter, especially at higher densities where other brands suffer from colorcast.
When measured on a spectrograph, ProStop IRNDs performance is literally off the charts. The attenuation of light between the visible, near-infrared, and infrared spectrums is even. This means that dark areas of your image are rendered with crisp clean blacks, giving you the absolute maximum performance from your high-native ISO digital sensors. The greater reduction in colorcast also means that photographers and cinematographers can use calibrated sets of filters, and switch between filter densities without disrupting the color balance, and consequently the overall look, of the project.
To ensure that ProStop IRND is the ideal IRND solution for both photographers and cinematographers, ProStop is available in both Resin and Glass. The ProStop IRND is an excellent choice for fine art photographers creating long exposures. The ProStop IRND is also a terrific choice for filmmakers who want create a cinematic look and reduce IR contamination at the same time.
- 85mm and 100mm Resin ProStop IRNDs include a foam gasket which sits between the filter and the holder to help eliminate light leakage.
- Up to 10 stops of attenuation in resin, 8 stops in glass.
- Resin ProStop IRND filters are 1.5mm thick while the glass filters are 4mm thick
- Extremely even visible and infrared attenuation to eliminate infrared contamination on your digital sensor.
- The best choice for cinematographers needing a matching set of ND with IR protection.
- Perfect for creating shallow depth of field or lengthening exposure times.
- Formulated to eliminate colorcast in the darkest densities.
- Manufactured to scientific tolerances from the highest grade of optical resin or Schott Superwite glass.
Why ProStop IRND?
Unlike film, todays digital sensors are adversely affected by light outside of the visible spectrum - especially when using higher density ND filters. Infrared contamination causes black areas of the image to appear various shades of brown and purple. For extremely dark attenuation (16 stops for example used in fine art) infrared contamination will brighten the foliage to the point that the images appear as if they were taken with Infrared Film. The ProStop IRND filter is designed to eliminate the infrared contamination, increasing the quality and contrast of your images and allows you to shoot wide open during daytime with high sensitivity sensors with beautiful results. Images have been created with 6 minute exposures that have zero color shift! ProStop IRNDs are formulated to work with all popular digital cameras without the need for choosing a filter with IR filtration at one specific nanometer cutoff. This is due to the extremely even attenuation across the infrared spectrum. Formatt-Hitech IRND filters are available in Resin between 1-10 stops of attenuation and Glass between 1-8 stops of attenuation.
To achieve the cinematic look camera shutters should be set to one fiftieth of a second. Todays digital cinema cameras have high native sensitivities, sometimes as high as 800 ISO to achieve best results. This means that to achieve a F2.8 in broad daylight youll need 9 stops of ND. In the past, when using the optical viewfinders of film cameras the camera operator would peer through multiple layers of ND, making it virtually impossible to operate the camera. Today, using electronic viewfinders, the camera operator views the image at the proper exposure making operating easy. Formatt-Hitechs ProStop IRND range offers the cinematographer up to 10 stops of ND from a single piece of resin (or 8 in glass), meaning that contrast, resolution, and flare resistance are greatly enhanced over stacking multiple low density filters.
ProStop IRND filters are designed to produce identical results when examined on a spectrometer, meaning that you can make adjustments from one density of filter to another without disrupting your white balance. It also means that should a filter become damaged and need replacement, you can rest assured that your new filter will match your existing inventory perfectly. www.formatt-hitech.com