Full pixel crop with the closeup lens and 1.4x teleconverter (420mm) at f/11 1/500 seconds ISO 1600 in full sun, closest focus (2'-1").

add comment

The first shot is with a 50mm extension tube, the second with a +2 diopter closeup lens. The closeup lens lets me meter but the working distance is too close for skittish insects and even though I could stop down a little further, the depth of field is very shallow and magnification greater. The actual f/stop would calculate out much larger than what the aperture ring says with an extension tube and I used a -5 exposure compensation to meter.