Whether to Use a Teleconverter in Wildlife Photography

Once in a while, I came across the question of whether to use a teleconverter in wildlife photography.  I decided to do an experiment myself to find the answer for my particular camera/optics combination.

The conclusion is that if you have a high quality lens, go ahead to use the crop frame camera.   But if you want to use a teleconverter to gain extra reach, think twice before using it on a crop sensor camera.  Using a full frame camera actually yields more image resolution when a teleconverter is added, even the magnification of a full frame is less than a crop frame.

My entire article is fairly long.  Here is a link for those who care to read in detail:

http://johnfanphotography.wordpress.com/2013/01/20/whether-to-use-a-teleconverter-in-wildlife-photography/