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Re: [datacolor_group] SpyderLensCal

2010-10-16 by Vampire D

That's what I was doing, distance was whatever I needed to fill the center point focus with that box. The instructions are very vague and don't really tell you much.

"Do the actors on Unsolved Mysteries ever get arrested because they look just like the criminal they are playing?"

Christopher



On Fri, Oct 15, 2010 at 4:18 PM, Cdtobie <CDTobie@...> wrote:

>>
I got my hands on a SpyderLensCal and have been testing it with different lenses. There is no way to guarantee the camera body is aligned to the target perfectly which seems to allow for some variation in results. The LensAlign and popular mirror do it yourself method has the ability to do this. Why was this not added to the SpyderLensCal system?

There is a small target image at the very edge of the main target. If you aim at this, instead of the center of the target, then any error caused by misalignment will be very minimal, since the distance between the focal point and the ruler will be close to zero. It's still a good idea to be as perpendicular as possible, but unless your lens's focal zone is tiny, this should put you more than close enough for checking you focus.

C. D. Tobie
Global Product Technology Mngr.
Digital Imaging & Home Theater

On Oct 15, 2010, at 3:59 PM, Vampire D <vampired@...> wrote:


I got my hands on a SpyderLensCal and have been testing it with different lenses. There is no way to guarantee the camera body is aligned to the target perfectly which seems to allow for some variation in results. The LensAlign and popular mirror do it yourself method has the ability to do this. Why was this not added to the SpyderLensCal system?

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