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Backfocus
There are currently two controversies ongoing within the Canon community — one quite public, about the 10D camera, and the other more contained, concerning something that I wrote a while ago about the Canon 100-400mm zoom lens.
The larger issue concerns the fact that some purchasers of the newCanon 10Ddigital SLR are complaining that the autofocus doesn't work properly; that the camera focuses slightly ahead of or behind the intended spot. These complaints have mainly been voiced on Net discussions boards.
I have used two 10D bodies, the sample loaned to me by Canon when the camera was first announced, and my own which I subsequently purchased at retail. Neither of these camera show the front focus or back focus problems that are rumoured.
Fig 1. Dawn Dragonfly. Florida, May 2003
Photographed with a Canon 10D with Canon 100-400mm f/5.6L IS lens @ 400mmISO 200 1/640 sec @ f/8. Hand Held.
Fig. 2 — 100% detail
In Fig. 1 above is a recent frame taken with my 10D. Foc...

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Michael Reichmann
Michael Reichmann
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Michael Reichmann is the founder of the Luminous Landscape. Michael passed away in May 2016. Since its inception in 1999 LuLa has become the world's largest site devoted to the art, craft, and technology of photography. Each month more than one million people from every country on the globe visit LuLa.
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