I am in the process of doing a simple analysis of images posted here for review to determine how often bird shooters really use the features of their expensive long lenses, i.e., 300mm f/2.8 L IS etc. Now if the DOF is of concern one will increase the f# and if camera shake or subject motion is a concern then one will increase the SS. However, lens IS should take care of any significant camera shake correct? So what would the minimum recommended SS be for an IS lens, static subject and shooting on a tripod or other stable mount? Do you automatiocally think in terms of DOF thus increasing your f#? Therefore requiring a lower SS and/or and increase in ISO. Which do you do?
I hope to present a summary of my analysis soon. The database is 63 recent bird images pulled in order from the critique forum. One item that was a surprise is the use of high ISO, i.e., greater than 400. More later.






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