As I began an effort to cull all the digital images I had on my hard drive, I noticed a trend in many of those taken with my Sigma lens - most lacked clarity that I was seeing in the images of other photographers and I began to take a hard look at what I was doing incorrectly and asking for insight. There is a saying out there I've seen posted many times over - it isn't the equipment - it's usually the photographer.
What should I have been doing? For one, I was not using good long lens technique!
And with this, I thank the photographers who generously offered advice on how to improve my imaging.
Long Lens Technique: