Blake Cook
06-13-2013, 10:48 AM
Canon GP-E1 manual suggests calibrating the compass without lens attached. I have discovered that with my 300/f2.8IS or 600 f/4 MkII attached the compass headings only show SE, S or SW headings even with the camera pointed north.
Further testing show that this error does not occur with the 70-200 MkII or any of my other lenses. The error with the Superteles occurs just by touching the camera mount and lens mount. Removing the 1Dx only an inch from the Tele and the compass heading is correct, so it's not a lens metal mass issue that is causing the problem.
Has anyone else noted this problem or not? I'm using the latest 1Dx firmware. What firmware are you using?
Blake
<embed id="application/x-exifeverywhere" type="application/x-exifeverywhere" width="0" height="0">Further testing shows the wrong compass heading only occurs on the superteles. The GPS headings are correct with all my other lenses including the 70-200 MkII.All I need to do is touch the lens mount (not contacts) and the compass headings show only southern headings even when the camera is pointed north. Remove the lens only an inch and the headings are correct, so it's not a metal mass issue.
Has anyone else noted this phenomenon. Either way, what iDx firmware are you using?
<embed id="application/x-exifeverywhere" type="application/x-exifeverywhere" width="0" height="0"><embed id="application/x-exifeverywhere" type="application/x-exifeverywhere" width="0" height="0">
Further testing show that this error does not occur with the 70-200 MkII or any of my other lenses. The error with the Superteles occurs just by touching the camera mount and lens mount. Removing the 1Dx only an inch from the Tele and the compass heading is correct, so it's not a lens metal mass issue that is causing the problem.
Has anyone else noted this problem or not? I'm using the latest 1Dx firmware. What firmware are you using?
Blake
<embed id="application/x-exifeverywhere" type="application/x-exifeverywhere" width="0" height="0">Further testing shows the wrong compass heading only occurs on the superteles. The GPS headings are correct with all my other lenses including the 70-200 MkII.All I need to do is touch the lens mount (not contacts) and the compass headings show only southern headings even when the camera is pointed north. Remove the lens only an inch and the headings are correct, so it's not a metal mass issue.
Has anyone else noted this phenomenon. Either way, what iDx firmware are you using?
<embed id="application/x-exifeverywhere" type="application/x-exifeverywhere" width="0" height="0"><embed id="application/x-exifeverywhere" type="application/x-exifeverywhere" width="0" height="0">