Helen - informal portrait

#portrait: No planning - just a quick snap!  I was close to Helen so although I wanted a thin depth of field to chuck the background out of focus, I wanted enough depth of field to get Helen's head sharp.

I therefore went for f/4, which turned out as intended.

The lighting was dull so I used on camera flash to lift the shot. I'd dialed-in some negative exposure compensation to darken the background - I totally overdid this, so had to offset with a graduated filter in photoshop.

EXIF: Canon EOS-1Ds Mark II, f/4 @ 50 mm, 1/2000, ISO 100,