Founded in 1990, China Wudung Optics Co., Ltd. is a China konica rangefinder manufacturer and supplier which is engaging in photoelectric instruments and optic instruments. Our company has the capacity of complete machine process, spray-paint on surface, electron process, optics assembling. We have own custom konica rangefinders review, research and development center, production line, marketing and after-sales service department and molding, injection, painting and silk printing workshops. About 60% of our orders are OEM or ODM. We can offer you R&D services that cover market research, design, mold making, samples, trial production and market testing.

"The EF model was originally released by Konishiroku in 1975. It came in 7 colors and was one of the early 35's to have a built-in flash. According to an Olympus collector's website, it was the competitive sour that led Y. Maitani to develop the Olympus XA series. The EF3 model is one of the last, and it has an improved 5 element /4 group 35/2.8 lens. The earlier models had a 38/2.8 which may have been a modified Tessar -type lens. The EF and EF2 has a top mounted rewind crank, while the EF3 has a bottom wind crank, almost exactly like the one on the entry level Konica POP." A common feature in these EF Konicas is, that they are scale focus, programmed exposure, 35's with a built-in electronic flash and they use a pair of AA batteries to power the exposure meter and flash. Shutter speeds range is from 1/60 to 1/500 sec. 'The Konica Minolta DiMAGE Z5 doesn't really break any new ground when compared to its predecessor, the DiMAGE Z3. While an extra megapixel of resolution is always nice, the more useful new features include a larger LCD display and improved battery life. Something that changed for the worse is the shutter speed range. While the Z3 could keep the shutter open for as long as 15 seconds, the Z5 limits you to 4 seconds. There are other areas that weren't touched at all, namely low light focusing and image softness.

'The Z5's most appealing feature is the powerful 12X optical zoom which covers a focal range of 35 - 420mm in 35mm equivalence. The lens operates smoothly and produces sharp images throughout its zoom range, but exhibits moderate barrel distortion at the wide angle end and slight pin cushioning at full telephoto. The lens is fairly fast with a maximum aperture of F2.8 (wide) to F4.5 (tele) which allows for the use of higher shutter speeds. Thanks to the AS (Anti-Shake) system, you'll be able to capture images with less hand shake at slower shutter speeds. We always recommend the use of a tripod or monopod for long telephoto shooting, even with cameras that have an AS (Anti-Shake) or IS (Image Stabilized) system. It's a good thing they included the AS system, because the Z5 is very lightweight and prone to camera shake at longer focal lengths. ' Compact, high-performance 5.0-megapixel CCD digital camera features CCD-Shift Anti-Shake System, 12x optical “Mega Zoom” lens, fastest-in-class Rapid AF, and large, easy-to-view 2.0-inch LCD. Konica Minolta Photo Imaging U.S.A., Inc. introduces the new compact DiMAGE Z5, a superb all-round digital camera that offers a built-in 12x optical Mega Zoom lens, Konica Minolta's proprietary Anti-Shake System, 5.0-megapixel CCD, fast overall response including Rapid autofocusing (AF), and a large 2.0-inch LCD screen for easy viewing.

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