Originally posted by rustynail925 heres one @55 5.6 i think.. just get closer to the subject as possible
Very nice! But the original question was,
"I also want to get in some portrait length shots that have sweet bokeh." Most humans probably won't want to have the lens 3-4 inches / 75-100mm from their face.
A +1 diopter at up to 1.5m / 5 feet will probably be a little more confortable.
Addendum: The 18-55mm kit lens DOES focus remarkably close, to within 3 inches / 75mm. I decided to experiment a little, with the FA 50/1.4, whose close focus is 5.5 inches / 135mm. I put a +1 diopter on the wide-open 50 and focused at a target about 1.5m away, a reasonable close portrait distance. Background blur (bokeh) increased slightly but noticeably. Then I tried a +2 diopter. Close focus distance dropped to under 1m and the bokeh softened dramatically. For *close* portraits, this cuts DOF about as thin as you'd want to go. Don't slice off your fingers!
Gosh. All these years in photography, and a bit of playing with diopter lenses for closeups, and I'd never bothered before to try them as portrait-mode DOF-bokeh machines. Duh! I'm sure glad the OP raised the question. So now we have a few ways to shrink DOF and increase background blur:
* Use a longer focal-length lens
* Set / use a bigger aperture
* Move subject further from background
* Move camera closer to subject
* Defocus / front focus a little
* Add slight extension to lens
* Use not-too-strong diopters
Can anyone think of any other tricks (other than PP)?