The setup sounds like shooting from a tripod. You should be able to use Live View to preview the DOF.
From: Jack Davis
Your 1/3 distance into the scene seems to comport with the accepted system that's been touted for many years. The combination of f/16 and the 50mm lens seems a nearly ideal combination. If you have the convenience of in-camera pre reviewing the DOF, I'm sure you would?be taking advantage of it. Don't know how you would determine hyper-focus without an aperture scale (ring). Jack ----- Original Message ----- From: CollinB <[email protected]> To: [email protected] Cc: Sent: Thursday, June 20, 2013 7:56 AM Subject: DOF by rote Those of us who have shot for a long time know how to handle our DOF scales. But alas many lenses come without scales and the knowledge of how to work with it is often lacking. These days I have a young lady working under me for shooting our transmission parts. She knows her way around Photoshop very well so I didn't have to train her on that end. But her camera skills still require some development. So to compensate for her lack in that area I've created a mechanical solution to the DOF issue. It's a simple process to manage DOF 1 set a spot on the light table and focus there. 2 The camera is (almost) always set at a specific angle for a proper perspective on the parts. 3 If one is unsure about the available DOF, put down the guide and shoot a test shot. 4 If there's not enough DOF (we're always at f/16), adjust the camera distance and re-shoot. 4.1 Only the distance-to-subjects changes as the camera angle remains the same.? Hence further back means the camera is raised higher to maintain perspective. Here is the solution shot at 3 ft. from subject near-center at f/16, using the A50/2.8 macro on a K30. http://www.flickr.com/photos/55001392@N08/9091785927/ ("near-center" because the point of focus is never the center of the DOF. Point of focus is at about 1/3 of the DOF into the object.) A PDF of the page is available on request.
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