Wood Duck Drake (Aix sponsa, Canard Bronchu, WODU) Tingley Ponds Albuquerque, NM, USA. Image Copyright ©Christopher Dodds. Sony Alpha a9 Mirrorless Camera & Sony FE100-400 F4.5-5.6 G Master OSS and Sony 1.4X @560mm. Full frame image. ISO 1,600 f/8 @ 1/1,600s Manual exposure mode. PURCHASE A PRINT or LICENSE IMAGE FOR PUBLICATION HERE.
Here's a Drake (Male) Wood Duck from my recent Better Than Bosque Workshop last December. Aside from the usual suspects (Sandhill Cranes and Snow Geese), the variety and number of ducks were a huge hit with everyone on the trip. I spent a lot of time with the Sony a9 and the 1.4X and 2X on the 100-400mm G Master lens and love the results with incredible detail.
Q&A:
Hi Chris- I am also a friend of Rob P living in Colorado. Switching to Sony from Canon. Had most canon lenses from 16-35 to 500mm. Shot with 1dMk4 and 7d2 for wildlife. Just getting used to settings on the Sony. Today was shooting with the a7riii, 100-400 sony with 1.4 converter. Photographing a soaring red tail hawk in manual settings, auto iso, 25oo sec., 6.3 in zone focus mode. I use back button focus and locked on to Hawk but all of the images were not sharp. With my canon 7d2 and 100-400 II every image would have been sharp. What am I doing wrong? Can't believe some images were sharp and some soft in a continuous burst. Rob said you may be able to help. I have a couple photo trips coming up in January and February and am leery on the sony setup. Have not sold my canon gear yet...Thanks, Bob K
Hey Bob,
A careful read of your question leads me to suspect a few reasons for your soft images:
1. Crop vs. Full Frame: You were using crop sensor cameras, but have switched to a full-frame camera with the 1.4X extender. Instead of the in camera crop with the shorter focal length, you are now hand-holding a longer lens on a full-frame camera to acheive the same "reach". This requires much more care.
2. Shutter Speed: While I don't doubt that you got a lot of keepers with your crop sensor camera and 1/2,500s, I strive to work at 1/5,000s for flight photography. In the past, most would agree that 1/focal length to be sufficient shutter speed for sharp images (1/500s when using 500mm). In my experience, the resolving power of modern lenses and sensors requires around ten times that to ensure razor sharp images.
3. Focus Mode: I seem to be using Centre Spot Lock-on most of the time for birds in flight with my Sony Cameras.
4. Back Button Focus: There are some ergonomic differences between your old and new cameras; perhaps button size, placement and the amount of pressure it needs to be kept pressed continuously. I have never been a fan of Back Button Focus, because it is simply too easy to make a mistake and release a little pressure from your thumb. Back Button Focus is also near impossible in sub-zero temperatures. Consider assigning focus back to the old fashioned shutter button.
Hope this helps!
Chris
Northern Gannet with Seaweed (Morus bassanus, Fou de Bassan, NOGA) From my Gannets Galore Workshop on Bonaventure Island at Parc National de l'île Bonaventure-et-du-Rocher-Percé, Quebec, Canada. Image Copyright ©Christopher Dodds. Sony Alpha a9 Mirrorless Camera & Sony FE100-400 F4.5-5.6 G Master OSS @ 164mm. Full frame image (top to bottom; left and right cropped to square aspect ratio). ISO 640, f/5.6 @ 1/4,000s Manual exposure mode.
