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- Four aspherical elements are featured in the optical design, including two Advanced Aspherical elements, and noticeably reduce spherical aberrations and distortion throughout the zoom range for improved sharpness and clarity.
- Three extra-low dispersion elements are also used to minimize color fringing and chromatic aberrations for greater color accuracy.
- A Nano AR Coating has been applied to reduce surface reflections, flare, and ghosting for increased contrast and color rendering in strong lighting conditions.
- Constant f/4 maximum aperture offers consistent performance throughout the zoom range and also lends greater control over focus position for shallow depth of field techniques.
- Rounded nine-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.
- Portable design weighs around 1.5 lb, making this a versatile choice for everyday shooting.
- Optical SteadyShot image stabilization helps to minimize the appearance of camera shake for sharper imagery when shooting handheld with slower shutter speeds.
- This stabilization system can also be combined with select camera's sensor-shift type image stabilization for more effective control of camera blur.
- Dust- and moisture-sealed design better permits working in inclement conditions and rubberized control rings benefit handling in colder temperatures.
- The front lens element features a fluorine coating to protect against smudges and dust from adhering to the glass surface.
- Direct Drive Super Sonic wave AF motor and internal focus mechanism provide quick, quiet, and precise autofocus performance and also contribute to more natural, intuitive manual focus control.
- Minimum focusing distance of 1.25' results in a maximum magnification of 0.31x, making this lens a suitable choice for close-up subjects.
- A focus hold button and AF/MF switch are present on the lens barrel for intuitive tactile control and rapid access to select settings.
The Pro 77mm 98-UVATS UV Filter is one of Chiaro’s highest-rated protective UV filters with 98% light transmission. It’s ideal for photographers of all levels who demand high-quality glass and other essential features for excellent image fidelity and construction.
To achieve 98% light transmission, Chiaro uses highly-polished optical glass, multi-coating, and additional advanced elements that improve the filter’s light transmission. A scratch-resistant coating minimizes scratching of the glass and helps assure that water, oil, dust, and fingerprints are removed with a gentle wipe. Its hard-anodized aluminum filter ring is designed to screw on and off effortlessly, and it is thin to prevent vignetting when used with wide-angle lenses. Side knurling helps assure that you’ll have a firm grip when attaching or removing your filter.
Image quality is what matters most at Chiaro. The company has tested and combined many features and essentials to achieve superior image quality and the highest light transmission. To help take the confusion out of selecting a filter, Chiaro prominently displays the light transmission levels so that you can choose the perfect filter for your lens and photo session.
Keep your optical surfaces clean with the Sensei OC-CK Optics Care and Cleaning Kit. This kit contains a pack of lens tissues, a lens cleaning pen, bulb air blower, paint brush, lipstick brush, lens cleaning fluid, microfiber cleaning cloth, and see-through mesh travel case to put everything in. This kit can be used to clean a variety of different optics and glass. You can use the air bulb blower and any of the three supplied brushes to initially remove dust from the surface. Sensei recommends applying a small amount of the alcohol- and ammonia-free cleaning fluid directly to the lens tissue. Then, gently rub in small circular motions to remove stubborn smudges or fingerprints from the glass. For those more stubborn blemishes or smudges, the lens pen is very effective.