GBRandy said:
Thanks folks. I was messing around with an 85mm f1.2 lens if any of you are photographically inclined.... It creates some neat out of focus areas and depth of field tricks. I'll post more as another of my many hobbies is photography....
"Depth of Field" is the area of <span style="font-style: italic">perceived</span> focus that builds 1/3 in front and 2/3 behind the point of focus (the true area of focus is plane parallel to the lens plane, on most cameras its also parallel to the film/sensor array plane). The smaller the aperture (larger numeric, eg f22) the greater the "depth of field", the larger the aperture (smaller numeric, eg f2.8) the lesser the "depth of field".
An 85mm (short telephoto) is an awesome portrait lens with just enough compression to not really be noticed but not a hint of wide angle distortion. A fast lens, one that can open the aperture very wide and 1.2 is VERY wide, is an excellent choice for making sure a persons entire face is in focus but the background can be a mottled blur. Often very pleasing to the eye.
Sorry, Photography is one of my professions. :wink: