https://community.usa.canon.com/t5/EF-RF-Lenses/AF-seems-to-fall-off-athe-highest-focal-length/m-p/329269#M1818 <P>I'm using a Canon 55-250mm STM lens. I noriced that the autofocus seems to fall off at the highest focal length (250mm). I had to manually adjust the focus to fine tune it.. The autofocus seemed to work fine at around the 135mm length.</P><P>Is this normal in any lens?</P><P>Steve Thomas</P> Mon, 28 Dec 2020 06:49:51 GMT stevet1 2020-12-28T06:49:51Z https://community.usa.canon.com/t5/EF-RF-Lenses/AF-seems-to-fall-off-athe-highest-focal-length/m-p/329269#M1818 <P>I'm using a Canon 55-250mm STM lens. I noriced that the autofocus seems to fall off at the highest focal length (250mm). I had to manually adjust the focus to fine tune it.. The autofocus seemed to work fine at around the 135mm length.</P><P>Is this normal in any lens?</P><P>Steve Thomas</P> Mon, 28 Dec 2020 06:49:51 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/AF-seems-to-fall-off-athe-highest-focal-length/m-p/329269#M1818 stevet1 2020-12-28T06:49:51Z https://community.usa.canon.com/t5/EF-RF-Lenses/AF-seems-to-fall-off-athe-highest-focal-length/m-p/329279#M1819 <P>Dupliate post.</P><P>&nbsp;</P><P><A href="https://community.usa.canon.com/t5/EOS-Rebel/AF-falls-off-at-longer-focal-lengths/m-p/329278#M30203" target="_blank" rel="noopener">https://community.usa.canon.com/t5/EOS-Rebel/AF-falls-off-at-longer-focal-lengths/m-p/329278#M30203</A>&nbsp;</P> Mon, 28 Dec 2020 12:19:19 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/AF-seems-to-fall-off-athe-highest-focal-length/m-p/329279#M1819 Waddizzle 2020-12-28T12:19:19Z