Saturday, August 25, 2012

Elk Calves'-The Spots Fade- Using the 5D MK III & GH2 in Elk Country

Spots Fade on Calf Elk: Panasonic GH2-Canon 500mm F4
 During August, most visitors to elk country may be focused on the bulls and the shedding of the velvet and the first stirrings of the pre-rut, but other important changes are occurring in the herd as well.  Like whitetail fawns, the calves are spotted at birth, which creates a camouflage pattern that helps them escape predators, but the spots start to fade in late July and this process continues until the coat is a solid color. The process begins at the top of the back and gradually works down.  By mid-August most of the calves are only partially changed such as the one in the photo above, but a small number have only a few spots still faintly visible. By the time the rut peaks in mid to late September most of the calves will have completely lost the spots or will have only a few faint ones.

Cow and Two Calves at Gilbert Viewing Area- one with spots almost gone: Still capture from video Panasonic GH2-Canon 500mm F4
 Two Calves at Gilbert Viewing Area- one with spots almost gone: Still capture from video -Panasonic GH2-Canon 500mm F4 -extended telephoto mode -35mm equivalent focal length approximately 2,000mm
This is the second trip to elk country that I have used the Panasonic GH2 as my primary video camera.  I was very unhappy when Canon did not include  the 3x crop mode in the 5D MK II or the new Rebel T4i.  I have no personal experience with The T4i, but I am told that the it does not have a better picture quality than the T3i.  I do have a fair amount of experience with the MK III in video mode and it is significantly better than the T3i in either still or video mode.  I am very happy with it when one can get close enough to the subject, but I missed the reach of the old Canon XL-H1 and the big L lenses, so after extensive research, I decided to try the Panasonic GH2 hybrid camera.

The GH2  uses a micro-4/3 lens mount and the sensor has a 2x crop factor.  The camera also has an extended telephoto mode, which takes the 2mp of resolution required for video from a small central portion of the sensor. This is how one can "really reach out and touch them" in video mode.  A decided down factor to this equation is that to use the Canon mount glass, one must use an adapter, and one that will electronically control the aperture costs almost as much, or more than the camera body--depending on which particular adapter one buys.  The bottom line; however,  is that the 500mm F4 , which is just that on a MK III becomes a 1,000mm F4 equivalent focal length on the GH2.  This is true in either still or video mode.  It becomes a 2,000mm focal length equivalent  in video mode when the extended telephoto mode is engaged.  The image is degraded somewhat , but it is still very usable.  I understand that unlike the T3i, one can also use this mode while shooting stills, but it will no longer utilize the full resolution of the sensor and as this is primarily a video camera in my case, I have not tried this yet.

Although one may not be able to tell from images posted on the internet, the bottom line is the GH2 cannot compete with any of the later Canon DSLRs as a still camera, but it is very usable and when one is concentrating on video it is an acceptable option to switch to still mode and take photographs.  Stills captured from video after the fact will be only 2MP resolution and will not be nearly as good as stills actually shot in still mode.

Calf Near Winslow Hill Road: Canon 5D MK III: Canon 500mm F4-ISO 400 1/640 sec. F4
A decided plus for the GH2 is that this is the first DSLR with which I have been able to follow-focus on moving animals or birds, in video mode, with any degree of success .So far manual focus  must be used in filming with a DSLR to have any hope of success and the LCDs are simply too low in resolution to reliably maintain sharp focus on moving subjects, even with the Zacuto Finder attached(the Rebel T3i did work better in this aspect than anything I had used previously).   The GH2 works better, because it has a blistering sharp electronic view finder in addition to a decent LCD.  I prefer to shoot video with the camera slightly above waist level and the LCD swiveled out and at a 45 degree angle, so I am standing above the camera, looking, down, and bent slightly forward.  This often gives a better perspective on the subject than standing erect, and using the eye-level finer, and it  is a good position to follow action from as one's head is not bumping the camera to disturb smooth camera motion, but the downside is of course the focus thing.  I find I am using the eye-level finder on this camera more and more, simply because I no longer have so much problem focusing.  

The bottom line is that one needs to keep an open mind about some of the options out there with the new high end Canon video cameras costing $16,000.00 without lens. 

Originally published at Pennsylvania Wildlife Photographer by Willard Hill.

1 comment:

V.L. Locey said...

I am always so happy to see when you post new entries, Willard. Your pictures are alway so crisp and beautiful.