Re: USB Microscope for PCB work

On Fri, 07 Dec 2007 14:00:30 -0800, John Larkin wrote:
On Fri, 07 Dec 2007 20:29:07 GMT, Rich Grise <rich@xxxxxxxxxxx> wrote:
On Fri, 07 Dec 2007 08:39:46 -0800, John Larkin wrote:
On Fri, 7 Dec 2007 06:50:34 -0800 (PST), a7yvm109gf5d1@xxxxxxxxxxx

Or use the software that came with the camera to remote control it via
USB, like my S3. BTW, once in macro mode, there is no zoom.

A lot of digital camera "zoom" lenses aren't. They are more like
variable focal length.

If a variable focal length isn't a "zoom", then what is?

A zoom stays in focus as you vary the focal length. With an autofocus
mechanism, it's not as important I guess. Except, of course, that most
of the autofocus things suck.

My Sony Cybershot has a 12:1 "zoom" but it seriously defocusses as you
go towards the telephoto end. None of my film cameras do that, but their
zoom lenses are huge and heavy, like 12 or 14 elements.

Thanks; apparently my Fuji uses the autofocus feature to compensate. :-)

Thanks!
Rich

.

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