Recommendations for Android wifi tablet?

[Scott Allen]

On 11 August 2011 11:34, Giles Orr <gilesorr-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
> I have to disagree: the Transformer camera is definitely NOT "fixed
> focus."  It will focus down to half an inch and possibly less, as
> you'll see from my flower photos referenced earlier in this thread.  I
> believe it's fixed focal length: it zooms, but I think it's digital
> not mechanical.  Is that what you meant?

On 11 August 2011 14:35, Lennart Sorensen <lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org> wrote:
> Fixed focal length means fixed focus.

Fixed focal length and fixed focus are two different things.

If the lens doesn't do optical zoom then it has a fixed focal length.

A fixed focal length lens can still have variable focus. E.g. A common
standard lens for an SLR camera is a 50mm single (fixed) focal length
lens but it still has a ring (and/or electronics plus a motor) to
allow it to be focused to a given distance (focal point).

When viewing images from the Transformer camera in real time (video or
"viewfinder" mode) and you pan from a distant object to a close object
, does the close object first appear blurry and then snap into focus,
while distant objects get blurry? If so, then the camera is not fixed
focus and has auto focus.

However, if close objects and distant objects are always all in focus
at the same time, then the lens is probably fixed focus and has the
focal point set to the hyperfocal distance.
<http://en.wikipedia.org/wiki/Hyperfocal_distance>

-- 
Scott
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