Nikon Micro 105 Plus Extension Tubes

Backlit mayfly spinner


Frontlit mayfly spinner

The use of extension tubes allows for greater "magnification" but greatly reduces the depth of field essentially making the focus plane extremly narrow.  On a full frame sensor like the Nikon D3S, using extension tubes also causes some vignetting--darkening of the corners.  These images were taken handheld using an iso of 1,600 in order to get a shutter speed fast enough and an aperture around f10 for a reasonable level of depth of field.  On cold mornings mayflies and bugs in general are far more still and much easier to capture...

Camera: Nikon D3S

Lens: Nikon Micro 105 with extension tubes