Quote:
Originally Posted by KhalDrogo
Hi everybody, not long ago I bought a Kodak Zi8 and I wanted to know if something can be done so that it can focus from 20cm or 30 cm. Are there any lens or something that works? Thank you.
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OK for starters the Kodak Zi8 has everything in focus from 100cm to infinity -
then in its macro mode the focus is about 15cm (
Kodak Zi8 specs)
To get the Zi8 to focus somewhere between 20-30cm what is needed is a close-up lens of about +1 or +2 diopter with the Zi8 set on its normal view (ie: not macro) You can read about close-up lenses
here.
A +1 diopter close-up lens will allow focus at about 11.5" = 29.2cm
+2 diopter will be in focus around 9" = 22.8cm.
The depth of field (range of focus/sharpness) will be dependent on what you find acceptable - but normally in still photography this is very shallow.
Close-up lenses can be found in most camera stores they are normally sold at various filter thread sizes, larger the more expensive - since the Zi8 lens is tiny, almost any size including the smallest/cheapest you can find will give adequate coverage.
You will have to be inventive about how to mount the lens (eg: Blu-Tack),
or just literally hold it in front of the Zi8 lens.
Also as suggested above, a wide-angle adapter lens may give focus to closer than 100cm - but obviously will change the angle of view.