PANASONIC LUMIX G Leica DG Vario-Elmar Professional Lens, 100-400MM, F4.0-6.3 ASPH, MIRRORLESS Micro Four Thirds, Power Optical I.S, H-RS100400 (USA Black)

I am very disappointed with this lens. Photos are blurry, especially at the long range. The attached image was taken at 400mm with 1/250s with a GH4. This shutter speed should produce better results at 400mm. I will take more shots with a tripod asap to see if this improves things, but I am inclined to return this lens right now and spend a little more money. Update: I used the tripod and remote control, tried with and without O.I.S., manual focus and autofocus, full or reduced autofocus range, and got poor results across the board from 200mm through 400mm. The lense is going back now. I have 5 other lenses for this camera across a wide price range and they all produce better results. I will keep looking for better tele zoom. Based on the other reviews here, it seems that I am not the only one who had no luck with this lens, but others get good results. There must be an issue with the production process and quality. While the zoom was a bit stiff on my specimen, the mount of the lens and the operation of the zoom and lock ring felt firm and precise. I did not notice any mechanical issues.

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0:00 0:00 This video is not intended for all audiences. What date were you born? January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926 1925 1924 1923 1922 1921 1920 1919 1918 1917 1916 1915 1914 1913 1912 1911 1910 1909 1908 1907 1906 1905 1904 1903 1902 1901 1900 Submit Adobe Flash Player is required to watch this video. Install Flash Player I wanted to love this lens but as you can see in my video, I keep getting weird focusing issues while recording video. It appears to be pulsing the focus. I have tried every setting imaginable but even with manual focus selected on both the camera and the lens it still happens. It doesnt matter if Image stabilization is on or off in both the camera and lens. I sent my first one in to be fixed by Panasonic and in the end they couldnt fix it. They shipped me a brand new lens. I was out recording with it the other day and saw the same thing happening again with my new lens. Unfortunately my warranty is expired by a couple months. Very frustrated. If you are planning on using this lens for video just know that this is a definite possibility of happening to you. Maybe I just was unlucky and received the only two units that have that exact problem? I highly doubt it. Happening twice in a row is a bad sign.

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A major feature of a zoom lens is the ability to shift quickly between focal lengths. This lens is very difficult to zoom and focal length cannot be adjusted without considerable effort. Im sure the image quality is very good, but I never achieved that level of evaluation.

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