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Old Dec 7, 2006, 4:37 PM   #1
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Hi all, just got my new Nikon 4T lens in the mail today. Any advice on best method ofusingthiswith my FZ7 to shorten the learning curve? Any help would be appreciated.
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Old Dec 7, 2006, 5:19 PM   #2
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The focus (or working) distance of a close-up lens is inversely proportional to the diopter power of the lens. F=1/d where F is the focus distance in meters and d is the diopter. The 4t is a +3 diopter lens. Thus, it will focus at 1/3 meter or about 13" from the subject. That distance has some wiggle room (+/- 5mm) at lower zooms where the dof is greater. At max 12x there is very little variation. Consider the 13" distance essentially fixed throughout the zoom.

Practice on coins or jewelry in bright light. Sunlight is preferable but a strong florescent light is sufficient. Start at lower zooms. Lock focus with a shutter half-press and then move the camera slightly closer/further to obtain maximum focus and complete the shutter press. Use the zoom to frame as you would normally.

Higher f stops will increase the dof. Depending on the available light get the aperture as small as possible in A priority. You do not need to shoot in macro mode.

Fred
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Old Dec 7, 2006, 5:23 PM   #3
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Good Luck Jim! Donna
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Old Dec 7, 2006, 6:15 PM   #4
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Thanks Fred! Great info.
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Old Dec 7, 2006, 6:16 PM   #5
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And thank you, Donna!
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Old Dec 7, 2006, 10:58 PM   #6
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The only way is to put the lens on the camera and go out and take lots of pictures. It's fun and you will get better and better.
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