Using Your Lens Sharply!

Near LaGrange, Maine: Found this spot while on vacation last week in Maine.  Taken with my Nikon D800E, Carl Zeiss 25mm Lens at iso 100, f7.1 @ 1//160 sec on a tripod.  Eveything is sharp from the foreground to the trees in the background even though I only used f7.1.

Most folks would think they needed an aperture of f16 or f22.  Not true when focused properly and using a tripod.  I used my depth of field preview button to look through the viewfinder and manually focused the lens to get all in focus. (having a full frame camera really helps when using depth of field preview). I adjusted the lens aperture to f7.1 and tried to get all in focus and it was just right.  Just about Every lens whether it’s a prime lens (single focal length) or a zoom have their sharpest aperture around f5.6, f6.3 or f7.1.  Think bell-curve from your school days where only so many kids get an A and only so many fail and the rest are in the middle so to speak. So don’t always ‘run’ to f16 of f22 for a sharp photo as you may not get what you want due to lens diffraction at such small apertures! Look up hyper-focal distance to see how you can do this too!

Bob Ring (www.nephotoworkshops.com)

1 Comment

  1. Stacey Guptill

    ahhh the magic 7.1 .. great article & scene Bob!

Leave a Comment