topic Using a 2x extender in Share Your Photos

topic Using a 2x extender in Share Your Photos https://community.usa.canon.com/t5/Share-Your-Photos/Using-a-2x-extender/m-p/486775#M5497 <P>Sometimes I see people advise against using a 2x extender. I frequently use one when there is enough light and I cannot get closer to the subject</P> <P>Benefits:</P> <UL> <LI>doubles focus length</LI> <LI>doubles magnification</LI> <LI>costs less than a 800mm lens when one already has a 400mm lens</LI> <LI>Canon extender images can be improved by digital lens optimizer in DPP</LI> </UL> <P>Disadvantages:</P> <UL> <LI>decreases aperture</LI> <LI>shallow depth of field</LI> <LI>increases F Number</LI> <LI>a higher ISO or lower shutter speed will be needed</LI> <LI>small aperture diffraction blur</LI> </UL> <P> </P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Ruby-throated Hummingbird (Archilochus colubris) on Salvia greggii flower in Norman, Oklahoma, United States on July 9, 2024" style="width: 999px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/54736iA62B05D0F7F7A3E3/image-size/large?v=v2&px=999" role="button" title="IMG_0693cs3.JPG" alt="Ruby-throated Hummingbird (Archilochus colubris) on Salvia greggii flower in Norman, Oklahoma, United States on July 9, 2024" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">Ruby-throated Hummingbird (Archilochus colubris) on Salvia greggii flower in Norman, Oklahoma, United States on July 9, 2024</span></span></P> <P> </P> <DIV> <TABLE> <TBODY> <TR> <TD>EXIF:Image</TD> <TD>ExposureTime</TD> <TD>1/1600</TD> </TR> <TR> <TD>EXIF:Image</TD> <TD>FNumber</TD> <TD>13.0</TD> </TR> <TR> <TD>EXIF:Image</TD> <TD>ISO</TD> <TD>2000</TD> </TR> <TR> <TD>EXIF:Image</TD> <TD>LensModel</TD> <TD>EF100-400mm f/4.5-5.6L IS II USM +2x III</TD> </TR> <TR> <TD>EXIF:Camera</TD> <TD>Model</TD> <TD>Canon EOS R5</TD> </TR> <TR> <TD>MakerNotes:Image</TD> <TD>FocusDistanceUpper</TD> <TD>4.96 m</TD> </TR> </TBODY> </TABLE> </DIV> <P> </P> <P> </P> Tue, 09 Jul 2024 16:35:18 GMT johnrmoyer 2024-07-09T16:35:18Z Using a 2x extender https://community.usa.canon.com/t5/Share-Your-Photos/Using-a-2x-extender/m-p/486775#M5497 <P>Sometimes I see people advise against using a 2x extender. I frequently use one when there is enough light and I cannot get closer to the subject</P> <P>Benefits:</P> <UL> <LI>doubles focus length</LI> <LI>doubles magnification</LI> <LI>costs less than a 800mm lens when one already has a 400mm lens</LI> <LI>Canon extender images can be improved by digital lens optimizer in DPP</LI> </UL> <P>Disadvantages:</P> <UL> <LI>decreases aperture</LI> <LI>shallow depth of field</LI> <LI>increases F Number</LI> <LI>a higher ISO or lower shutter speed will be needed</LI> <LI>small aperture diffraction blur</LI> </UL> <P> </P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Ruby-throated Hummingbird (Archilochus colubris) on Salvia greggii flower in Norman, Oklahoma, United States on July 9, 2024" style="width: 999px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/54736iA62B05D0F7F7A3E3/image-size/large?v=v2&px=999" role="button" title="IMG_0693cs3.JPG" alt="Ruby-throated Hummingbird (Archilochus colubris) on Salvia greggii flower in Norman, Oklahoma, United States on July 9, 2024" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">Ruby-throated Hummingbird (Archilochus colubris) on Salvia greggii flower in Norman, Oklahoma, United States on July 9, 2024</span></span></P> <P> </P> <DIV> <TABLE> <TBODY> <TR> <TD>EXIF:Image</TD> <TD>ExposureTime</TD> <TD>1/1600</TD> </TR> <TR> <TD>EXIF:Image</TD> <TD>FNumber</TD> <TD>13.0</TD> </TR> <TR> <TD>EXIF:Image</TD> <TD>ISO</TD> <TD>2000</TD> </TR> <TR> <TD>EXIF:Image</TD> <TD>LensModel</TD> <TD>EF100-400mm f/4.5-5.6L IS II USM +2x III</TD> </TR> <TR> <TD>EXIF:Camera</TD> <TD>Model</TD> <TD>Canon EOS R5</TD> </TR> <TR> <TD>MakerNotes:Image</TD> <TD>FocusDistanceUpper</TD> <TD>4.96 m</TD> </TR> </TBODY> </TABLE> </DIV> <P> </P> <P> </P> Tue, 09 Jul 2024 16:35:18 GMT https://community.usa.canon.com/t5/Share-Your-Photos/Using-a-2x-extender/m-p/486775#M5497 johnrmoyer 2024-07-09T16:35:18Z