I love how long lenses isolate the subject from the background.
model - Aria photos - Zorian
If you look at the picture with the shoes and study the sand, you can understand how lenses work, especially long lenses. The "Rule" of lenses is, " from the point of focus (the rivets on the shoe), the area of sharp focus is 1/3 in front and 2/3 in back". All lenses work this way. It is easy to see, the area of sharp focus or the Depth of Field (DOF), with long lenses.
Look at the sand and you can see the sand in sharp focus 2 inches in front of the shoes and about 4 inches in back of the shoes. I focused on the rivets on the shoe.
These pictures where shot with a Sony A700 and a Sony 70-200 f2.8G lens, shot with
Aperture Priority a f2.8. The method that I use is "Focus, Hold - Recompose".
I focused on the eyes, in the fashion shots and recomposed the photo and then shot the picture.
It takes practice but when you get the hang of it you can get sharp beautiful "Long Lens" fashion pictures.
Vintage romper, antique Dobbs boater, vintage jewelry, Jeffery Campbell Clogs.