Extension Tube Macros

[cmr164]

Here are a couple of examples of using extension tubes on long zooms.

These are cropped to allow actual pixels to be shown instead of reducing the size down.

70mm f2.8 1/30th and about 6 inches away.
http://www.iisc.com/dgrin/1944_penny_c.JPG

70mm f3.2 1/80 6"
http://www.iisc.com/dgrin/1945_finger_c.JPG

[cmr164]

From 30 inches

400mm f5.6 1/50 30"
http://www.iisc.com/dgrin/IH9T1948_c.JPG

[pathfinder]

Here are a couple of examples of using extension tubes on long zooms.

These are cropped to allow actual pixels to be shown instead of reducing the size down.

70mm f2.8 1/30th and about 6 inches away.
http://www.iisc.com/dgrin/1944_penny_c.JPG

70mm f3.2 1/80 6"
http://www.iisc.com/dgrin/1945_finger_c.JPG
Which length extension tube did you use? These seem tack sharp to my eye.http://www.dgrin.com/images/icons/lickout.gif

[cmr164]

Which length extension tube did you use? These seem tack sharp to my eye.http://www.dgrin.com/images/icons/lickout.gif
The 2 at 70mm were with the 36mm extension and I am embarrassed to say that I was fooling around so much that I do not remember what I had on the for the shot with the 400mm. I took 6 or 7 shots and a couple were blurred but I am pleased with the results particularly since they were all handheld.