https://community.usa.canon.com/t5/EF-RF-Lenses/Short-focus/m-p/11539#M20583 <P>My 100-400 IS seems to be focusing about 6 inches short of the intended subject.&nbsp; Is there adjustments in the 7D that can help with that?</P> Wed, 16 Jan 2013 19:00:21 GMT Nuce 2013-01-16T19:00:21Z https://community.usa.canon.com/t5/EF-RF-Lenses/Short-focus/m-p/11539#M20583 <P>My 100-400 IS seems to be focusing about 6 inches short of the intended subject.&nbsp; Is there adjustments in the 7D that can help with that?</P> Wed, 16 Jan 2013 19:00:21 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/Short-focus/m-p/11539#M20583 Nuce 2013-01-16T19:00:21Z https://community.usa.canon.com/t5/EF-RF-Lenses/Short-focus/m-p/11569#M20584 <P>Yes.&nbsp; The 7D allows AFMA (AF Micro Adjusting).&nbsp; C.Fn. III - 5.&nbsp;</P><P>&nbsp;</P><P>For proper results you will need a tool to properly test your lens:</P><P>&nbsp;</P><P>I prefer and use <FONT color="#0000FF"><A target="_self" href="http://www.reikan.co.uk/focalweb/index.php/why/about-focal/"><FONT color="#0000FF">FoCal</FONT></A></FONT>.&nbsp; Other measuring tools are <FONT color="#0000FF"><A target="_self" href="http://michaeltapesdesign.com/lensalign.html"><FONT color="#0000FF">LensAlign</FONT></A></FONT> (which I do not recommend) and <FONT color="#0000FF"><A target="_self" href="http://spyder.datacolor.com/en/portfolio-view/lenscal/"><FONT color="#0000FF">Spyder LensCal</FONT></A></FONT>.</P><P>&nbsp;</P><P>&nbsp;</P><P>Some&nbsp; useful links:</P><P>&nbsp;</P><P><A target="_self" href="http://www.northlight-images.co.uk/article_pages/cameras/1ds3_af_micoadjustment.html">http://www.northlight-images.co.uk/article_pages/cameras/1ds3_af_micoadjustment.html</A></P><P>&nbsp;</P><P><A target="_self" href="http://www.the-digital-picture.com/Photography-Tips/AF-Microadjustment-Tips.aspx">http://www.the-digital-picture.com/Photography-Tips/AF-Microadjustment-Tips.aspx</A></P><P>&nbsp;</P><P>&nbsp;</P><P>If you want to adjust your lens without any tool you can try this:</P><P><A target="_self" href="http://www.dgrin.com/showthread.php?t=116078">http://www.dgrin.com/showthread.php?t=116078</A></P><P>&nbsp;</P><P>&nbsp;</P> Wed, 16 Jan 2013 20:32:51 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/Short-focus/m-p/11569#M20584 7D5D 2013-01-16T20:32:51Z