The modern digital camera can reproduce wide dynamic range in a single exposure. Some models reproducing 14EV or more. This is still less than the human eye can perceive. Thought to be in excess of 20 EV that enable us to see from extreme darkness to bright sunlight. In 1940s, Ansel Adams – the master landscape photographer formulated “The Zone System” technique for guaranteeing a correct exposure. To show more detail on one image, by metering correctly from shadow to highlight to ensure the film was exposed and then printed to deliver information throughout the contrast range.
To achieve the best image in scenes of extreme contrast rather than trying to manipulate the camera settings, or by using combined images blended with HDR (High Dynamic Range) the expert photographer prefers to use a Gradual Neutral Density filter to bring equality across the exposure area.
H&Y are committed to continually improving image quality, matching todays high resolution cameras and lenses. Optical performance is paramount for landscape photographers using Gradual Neutral Density filters and filter holders.
Aviation grade aluminium alloy & durable anodisation
Constructed from high quality lightweight aviation aluminium alloy, the 100mm Holder exemplifies high quality crafts craftsmanship. The anodised matte surface and outsized holder body frame fully blocks the refracted light from behind the camera, and ready to mount the H&Y Magnetic Filter FrameSystem.
The included Circular Polariser has multi-layer nano coatings of polarising film for optimum image quality and high light transmission values. Designed and manufactured with durable materials, water and oil repellent and high optical tolerances, this holder and filter combination will reward image makers who appreciate high quality equipment.
Holder scales for precise alignment of transmission cut-off
In some special shooting situations, black card is still needed to limit or restrict light passing, despite using GND filter. The detailed scales on and behind the holder is for more precise alignment of a black card.
Foam seal gaskets block refracted light
Foam seals are affixed on the inner side of holder, to prevent unwanted light leak and to stop light entering between filter and holder in long exposure usage; furthermore it reduces accidental scratching when mounting filters on to the holder.
Rail free system for no vignetting with wider lenses
Vignetting occurs when using ultra-wide lenses or often appears unexpected objects next to the lens appear within the view. H&Y designs the 100mm Holder with extra long distance between between the side slots and reduce thickness of adapter strips to avoid accidental vignetting.
Rapid attachment and better protection for your filters
Combine H&Y Magnetic Filter Holder with H&Y Magnetic Filter Frame, you can stack mount multiple filters and slide your filter to preferred position without concern of them detaching. Gapless edges prevent extraneous light from entering between filters and causing flare or light leak. Square and rectangular filters can be very fragile and easily scratched, smeared by fingerprints or dropped and broken. Innovative Patented H&Y Magnetic Filter Frame designed for 100Å~150mm and 100Å~100mm filters and brings additional security to handling of filters and reduce fingerprints around the border of the filters 100.
Included 67mm, 72mm, 77mm and 82mm filter thread adapters