To all,
I've been having a difficult time getting sharp images with the Canon EF 600mm f/4.0L IS II USM and the Canon 1.4x EF Extender II. Basically, I shoot from my Toyota Tacoma with the lens/camera combination resting on a BLUBB (bean bag). I turn the vehicle off while taking images. I've tried where the focusing ring is on the bean bag and not on the bean bag. Will the movement of the focus ring during AF impact the overall image quality? That is, is the focus ring turned off during AF? I've tried placing my hand over the tripod foot, over the hood and under the hood for added stability. While looking through the view finder I find the had over the hood appears to work best. I see very little if any movement during this phase. I took around 600 images of the eagle, and saved only 17 marginally sharp images. This is a terrible hit to miss ratio. I have attached several images to show the common out of focus images. What's really interesting is the strange catch light pattern in the eagle.
I've tried every AF combination and AF pattern available on the Canon 1Dx to no avail.
It is possible that the problem lies with me (i.e. poor technique); however, I've read several articles relating to proper super-telephoto techniques and try following them as best I can. If anybody lives near Pendleton, Oregon and is an expert at proper super-telephoto techniques, I would enjoy your company for an afternoon along the Foothills of the Blue Mountains.
Thanks,
Wade
I've been having a difficult time getting sharp images with the Canon EF 600mm f/4.0L IS II USM and the Canon 1.4x EF Extender II. Basically, I shoot from my Toyota Tacoma with the lens/camera combination resting on a BLUBB (bean bag). I turn the vehicle off while taking images. I've tried where the focusing ring is on the bean bag and not on the bean bag. Will the movement of the focus ring during AF impact the overall image quality? That is, is the focus ring turned off during AF? I've tried placing my hand over the tripod foot, over the hood and under the hood for added stability. While looking through the view finder I find the had over the hood appears to work best. I see very little if any movement during this phase. I took around 600 images of the eagle, and saved only 17 marginally sharp images. This is a terrible hit to miss ratio. I have attached several images to show the common out of focus images. What's really interesting is the strange catch light pattern in the eagle.
I've tried every AF combination and AF pattern available on the Canon 1Dx to no avail.
It is possible that the problem lies with me (i.e. poor technique); however, I've read several articles relating to proper super-telephoto techniques and try following them as best I can. If anybody lives near Pendleton, Oregon and is an expert at proper super-telephoto techniques, I would enjoy your company for an afternoon along the Foothills of the Blue Mountains.
Thanks,
Wade