Raynox HDS-680K Wide-angle converter

HDS-680 high-resolution wide-angle conversion unit 0.67x the HDS-680 wide-angle lens is specially designed for use with the super-wide-angle zoom lens of the AVCHD camera models. The wide angle attachment converter HDS-680 extends the picture angle by 49% compared to that of the camera lens. The converter was developed using optical glass with hohem index and achieves a maximum resolution of 375 line pairs per millimeter (in the center of the image with an MTF contrast of 30%). It can be zoomed over the entire focal length range and maintains the focus while zooming. Features: -especially for use with wide-angle zoom lenses on AVCHD cameras -can be used in full zoom range -Construction of 2 lenses in 2 groups -Compact and only 125 g light Highlights: -Focal width factor: Nominal 0.67x, actually 0.53x diagonal and 0.67x horizontal -Optical design: 2 lenses in 2 groups, tempered lenses from optical glass -distortion: -18.5% (at maximum wide angle) -Front thread for filter: Not possible -Screw thread: 37 mm (M372x0.75) -Socket: Stable and solid metal ABS/PC hybrid socket -Dimensions (length x dia.): 30 mm x 66 mm -Weight: 125 g -Accessories supplied: 5 adapter rings (27 mm, 30 mm, 30.5 mm, 34 mm, 43 mm external thread) Protective bag, protective cover, how to screw the HDS-680 onto your HD camcorder Raynox recommends that you hold the camcorder with the lens up and be careful not to let the converter fall out of your hand. The HDS-680 is a precision optical device manufactured to critical tolerances. Do not expose the HDS-680 to hard shocks, extreme cold, heat or moisture. Do not use the built-in flash with the HDS-680 attached. When using the flash, the converter shades off large parts of the subject. The camera's remote control functions may be affected when using the HDS-680. Therefore, it is recommended to check this with test recordings before making important recordings with this converter in conjunction with the remote control of your camera or camcorder. Depending on the camera model used and the shooting conditions, especially when there is insufficient lighting, a contrast-reducing wear can degrade the image quality of telephoto shots. With the HDS-680 attached, photographs of distant subjects with telephoto focal lengths should only be taken in good light. If you see a white dot when looking at the HDS-680 from the front, you don't need to be worried; this is not a mistake and has no negative effect on image quality. If the temperature changes quickly from a cold environment to a warm (and possibly also damp) environment, moisture may condense on and within the still cold converter. If moisture has also settled inside the converter, keep the converter in a dry place until the condensation droplets have evaporated again. If such condensation repeats often, it may result in cloudy fittings over time that have a negative effect on image quality (contrast reduction, blurred images). Protect the HDS-680 from dust and moisture; it is not dust, moisture, or waterproof.

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