Rich wrote:
> On Mon, 10 Oct 2005 18:58:18 GMT, "David J Taylor"
> <david->
> wrote:
>
>> Rich wrote:
>> []
>>> Also, on the original image (the doll) if you look at the teeth
>>> you'll see CA in the Panasonic image.
>>> -Rich
>>
>> Both my FZ5 and FZ20 show a small amount of CA. Mot as much as the
>> Canon S2 IS, though. The CA is only noticeable under unusual
>> conditions, and even then it's not a problem. It does seem to be
>> one price you pay for a 12:1 zoom range in an f/2.8 lens.
>>
>> David
>>
>
> Most cameras nowadays tend to control it pretty well, except for
> cheap P&S's.
> -Rich
Perhaps CA isn't quite the best way to describe what you get with these
lenses - it's not classic CA with an RGB (or BGR) radial edge to
white/black transition, more a faint red/violet ghost image just visible
in the presence of a bright object. Perhaps it's an internal relfection?
Both the Leica/Panasonic and Canon very long zoom lenses show the effect.
You can get a hint of what I mean in this image:
http://www.david-taylor.myby.co.uk/F...35-01-crop.jpg
whereas nothing like as much in this image:
http://www.david-taylor.myby.co.uk/F...23-53-crop.jpg
David