I swapped the day off by taking my Canon EOS 7D, EF teleconverter 1.4x and my trusty EF400mm F5.6L for a walk around the neighbourhood's fence line.
This place has a healthy population of birds where anything from a small spider-catcher to an Eagle can be spotted if you are lucky.
|The Mangrove whistler|
To get the most out of it, you have to set your camera to the lowest ISO.
Lower sensitivity means a tighter and crispier shot.
This also yields you a sharper image.
The enemy for a bird photographer is low-shutter speed.
I set my Canon EOS7D to 1/1250sec.
This would guarantee a clear shot.
There's nothing much I could do about the ISO settings which I had set on 'Auto'.
To compensate for bad lighting conditions, the camera would use a higher-sensitivity light capture.
Your shots may end up 'grainy' and if you blow it up, the colour pixels are not as compact as the lower ISO settings.
|The image at 70% crop|
The AF sensor on my EOS7D would not operate with a 1.4x TeleconvertorII.
Apparently, there is not enough light for the sensors to activate autofocussing.
To me, its not an issue.
I've been working with manual focus on my macro shots.
On a long telephoto lens, its just a matter of 'eye-hand' coordination.
I managed to cap off six shots and out of the lot, two came out pretty decent.
A little tweaking on the Adobe Lightroom 4.2 had fixed the exposure...