55mm 81B Multi-Coated Filter Calumet Multi-Coated Filters
- prevent flare while protecting your lens & enhancing photos. Top optical
...

For lenses with a 55mm thread. Screws onto the lens with a fluid action, thanks to the sturdy construction & aluminium screw thread. ...

Calumet 55mm SMC Circular Polarising Filter Calumet's Super Multi-Coated filters are available in UV/P & Circular Polariser only. Calumet Digital Super Multi-Coated (SMC) filters are mounted in slim-profile rings to work with wider-angle digital lenses & are Super Multi-Coated for enhanced durability & superior light transition. Calumet Digital SMC filters have extra layers of multi-coating which result in an enhanced average light transmission of 99.7% & provide increased resistance to flare even at wide apertures. Circular Polarising: Rotating mount allows the filter to be adjusted to provide colour contrast & enhancement & to reduce reflections in glass, water etc. ...

Calumet 55mm Circular Polarising Filter Calumet's Multi-Coated filters are a must for modern digital stills & camcorder lenses, particularly where lens hoods or compendium shades cannot be used. These outstanding filters offer revolutionary performance in light transmission, colour balance & flare control. Calumet Multi-Coated Filters minimise flare & ghost imaging in situations where unwanted light falls on the filters surface. The result is an average light transmission of over 97%, producing sharp contrast & well-balanced colour. Multi-Coated filters are available in a wide range of filter types & are highly recommended for maximising the performance inherent in multi-coated lenses. Polarising: Rotating mount allows for the filter to be adjusted to provide colour & contrast enhancement & to reduce reflections in glass, water etc. ...

Calumet's Super Multi-Coated filters are available in UV/P & Circular Polariser only. Calumet Digital Super Multi-Coated (SMC) filters are mounted in slim-profile rings to work with wider-angle digital lenses & are Super Multi-Coated for enhanced durability & superior light transition. Calumet Digital SMC filters have extra layers of multi-coating which result in an enhanced average light transmission of 99.7% & provide increased resistance to flare even at wide apertures. Circular Polarising: Rotating mount allows the filter to be adjusted to provide colour contrast & enhancement & to reduce reflections in glass, water etc. ...

State-of-the-art optics Incorporating high-performance, hybrid aspherical optical element in its optics, this new standard lens offers exceptional image-resolving power with outstanding brightness levels even at the edges, while compensating various aberrations to a minimum. All lens characteristics are optimized for digital photography: for instance, flare & ghost images are minimized by applying exclusive lens coatings to optical elements & employing anti-reflection materials for the interior of the lens barrel. As the result, this lens can bring out the full potential of the PENTAX 645D medium-format digital SLR camera. Versatile standard lens When mounted on the PENTAX 645D camera body, this standard lens offers a focal length of 43.5mm (in the 35mm format), which produces an angle of view close to that of the human eye. As the result, it can be used for many different kinds of subjects & applications, including landscapes & portraits. Dependable dustproof, weather-resistant construction Using seven special seals, the lens’ dustproof, weather-resistant construction effectively prevents the intrusion of dust & water to the lens interior. By coupling this lens with the PENTAX 645D camera body, the user is assured of a durable, reliable digital SLR camera system that performs superbly in outdoor settings, even in rain or mist or at locations prone to water splashes or spray. PENTAX plans to use the “AW” (All Weather) designation in the product name of all dustproof, weather-resistant medium-format interchangeable lenses to be marketed in the future. Aero Bright coating to dramatically improve image description in backlight The lens is treated with PENTAX-original Aero Bright coating, which delivers brilliant, high-quality images by preventing annoying flare & ghost images more effectively than ever before. Born as the fruit of PENTAX’s advanced nanotechnology, this exclusive coating effectively reduces lens reflectance & greatly increases light transmittance by forming a silica aerogel layer with uniform pores on the surface of optical element. Rounded diaphragm to produce a beautiful bokeh This is the first PENTAX medium-format interchangeable lens to features a completely rounded diaphragm. It creates a natural, beautiful “bokeh” (out-of-focus rendition), while minimizing the streaking effect of point light sources. Smooth, quiet SDM autofocus mechanism The SDM (Supersonic Direct-drive Motor) autofocus mechanism operates smoothly & quietly using the supersonic motor installed inside the lens barrel. SP coating to block dust & dirt The front surface of the lens is treated with PENTAX-original SP (Special Protect) coating, which applies an exclusive fluorine compound to the lens surface through a vapour deposition process. This SP coating not only effectively repels dust, water & grease, but also makes it easy to wipe off fingerprints & cosmetics. Other features 1) Image circle covering the image area of 645-format film SLR cameras 2) Functional, simplified design, with no aperture ring 3) Quick-Shift Focus system for instant switching to manual-focus operation, after the subject is captured in focus by the AF system 4) PL filter window for easy installation of a polarizing filter without removing the lens hood 5) PH-SA67 Square Plastic Hood (optional) for more effective prevention of flare & ghost images when mounted on the PENTAX 645D camera body ...

Normal macro lens with 1/2 maximum reproduction ratio. Aperture range 2.8-32 & 1:2.8 aperture ratio. Automatic diaphragm type. 43 degree picture angle. ...

When designing the Otus 1.4/55 we had one brief: make it the best. Representing the pinnacle of over a century of optical & technical expertise, this prime lens offers truly spectacular, world-class performance. Spectacularly detailed portraits full of contrast. High fidelity images & exceptional performance into the corners even at full aperture. The Otus 1.4/55 makes absolutely no compromises & brings together over a century of ZEISS optical & technical excellence. This standard lens is the exception to the rule: perfect optical correction eliminates nearly all possible flaws, from color fringes & distortion to chromatic aberrations. With the highest contrast performance over the entire image field, even at an aperture of f/1.4, this lens offers the spectacular medium format look when working with a modern SLR camera. Phenomenal detail & exceptional performance, regardless of whether it’s using available light or in the studio, the Otus 1.4/55 is the absolute best lens in the world today. In contrast to its predecessors with similar focal lengths & speed, this is first time that the Distagon type has been selected for the optical construction of a standard lens. Only this optical design with its considerably longer construction makes it possible to already realise consistently excellent correction from corner to corner of the frame & extremely low image field curvature at a very large initial aperture.   ...

Otus 1.4/55 Accept no substitute. Spectacularly detailed portraits full of contrast. High fidelity images & exceptional performance into the corners even at full aperture. The Otus 1.4/55 makes absolutely no compromises & brings together over a century of ZEISS optical & technical excellence. This standard lens is the exception to the rule: perfect optical correction eliminates nearly all possible flaws, from color fringes & distortion to chromatic aberrations. With the highest contrast performance over the entire image field, even at an aperture of f/1.4, this lens offers the spectacular medium format look when working with a modern SLR camera. Phenomenal detail & exceptional performance, regardless of whether it’s using available light or in the studio, the Otus 1.4/55 is the absolute best lens in the world today. In contrast to its predecessors with similar focal lengths & speed, this is first time that the Distagon type has been selected for the optical construction of a standard lens. Only this optical design with its considerably longer construction makes it possible to already realise consistently excellent correction from corner to corner of the frame & extremely low image field curvature at a very large initial aperture. Aberrations caused by extreme differences between shadows & highlights are particularly obvious in images captured at night. Thanks to the outstanding correction of lateral chromatic aberration, the floodlit facade is reproduced with absolute perfection.   ...

Absorbs the ultraviolet rays which often makes outdoor photographs hazy & indistinct. A muliti-purpose fine-weather filter for color as well as black & white films. Also serves as a permanent lens protector. Hardened Glass: Hardened optical glass that has 4 times the breaking strength in ANSI standardized testing (ANSI Z80.3: 2001) where a steel balls of varying size & weight were dropped from a height of 50 inches onto the glass. Hardened 8 Layer Waterproof Multi-Coating that is Scratch & Stain Resistant: Newly developed industry leading 8-layer multi-coating yields an average light transmission rate of 99.35% between 400 & 700nm (visible spectrum). These coatings greatly reduce reflections off the surface of the glass allowing you tocapture more light in your photos. As with all HOYA multi-coatings, HD HMC is applied in a furnace at high he at, bonding the coating to the surface of the glass. This process is called "hard coating" & it is far more durable than other coating techniques. The chemistry of the top layer is formulated not just to be more durable but to be resistant to oil stains. ...