Bob Williams wrote:
> agro D-Mac wrote:
>> The Panasonic FZ50 alone is an excellent camera. Couple it to a Metz
>> flashgun and you really have just about as good a combination as most
>> people will ever need. Total cost? Under $700 Images like this can be
>> taken by nearly anyone with a little patience and experimentation with
>> such an outfit.
>> http://www.douglasjames.com.au/more-panasonic.htm
>>
>> Douglas
>>
> Nice shot of a classically beautiful subject.
> Macro photography is where P/S cameras excel.
> Almost any P/S can get 1:1 Macro shots straight away.
You do know what "1:1 Macro" is don't you? 1:1 macro doesn't
mean "the lens is really close to the subject", and Doug's
photo isn't remotely close to 1:1.
Classically, 1:1 macro means that the image cast on the
recording medium is the same size as the subject. For true
1:1 on a P&S then, that would mean a subject only a few mm
in size would fill the frame. Nothing comes remotely close
to this type of magnification, but digital usually gets
compared to 35mm film. So for the purposes of macro, lets
assume that 1:1 macro means "the equivalent of 1:1 on 35mm
film", or a subject size of 36x24mm fills the frame completely.
Not many P&S come anything close to 35mm equiv 1:1, and if
they do it is severely limited. If you want to see how close
a given camera is to 1:1 take the closest shot you can of a
ruler - if the width is 36mm and the height is 24mm (or
similar, depending on aspect ratio), then you have the
equivalent of 1:1 macro on 35mm film.
For example, the Canon S2IS->S5IS series have a super-macro
mode, which makes them one of the few cameras which will
actually deliver better than 35mm 1:1 macro. To get it
though, the subject has to be touching the lens, in which
case you have a frame width of just under 30mm. Obviously
the subject touching the lens is hopeless unless it is a
semi-transparent object that is backlit. Move the subject
back a mere 2cm so that you can at least get some light on
the subject, and the frame width falls to around 50mm.
Bear in mind also that the super-macro mode works only at
maximum wide angle, therefore you get distortions, and no
ability to control selective DOF blur.
This series also has a standard macro option - In standard
macro, at wideangle the lens is 8cm from the subject with a
frame width of 110mm or 1:3 macro. With the maximum amount
of zoom allowable in macro mode (about 3x) the working
distance is increased to 14cm from the front lens, and the
frame size is 90mm or 1:2.5 macro. This standard macro mode
is more usable than super-macro, because the greater working
distances mean less lighting issues (camera doesn't shade
the subject, enough room to get even artificial lighting if
necessary), but we are a long way off 1:1 macro.
> Most DSLRs cannot get a 1:1 macro without a separate macro lens or some
> other auxiliary equipment.
The ability of an SLR is totally dependent on the lens that
is fitted to it - that is one of the key strengths of SLR.
If you want a general purpose, 10X zoom, all-in-one lens
just like you'd get on a P&S, you can buy it. You can also
buy a flat-field, fast aperture, telephoto prime macro lens
if you wish. If photographing ant's eyes is your thing, you
can even buy micro lenses that deliver 5x magnification. The
lens you use on a DSLR is a compromise between versatility,
size, weight, performance, price, and most systems have
enough lens choice that it is up to the buyer to decide
which compromises he will make. With a P&S, the compromise
choices have been made in the factory.
Just for the record though, the 18-55 kit lens that came
with my K10D (which is NOT a macro lens) has a minimum focus
distance of 250mm (measured from the image plane, not the
front of the lens). At this distance the front element is
about 10cm from the subject, and frame width is 60mm - which
is equivalent to a 1:1.6 macro on 35mm. It does this at 55mm
focal length so I get minimal distortion, and with a decent
gap between the camera and the subject I can use additional
lighting if necessary, or if relying on natural lighting I
don't have to worry so much about the camera shading the
subject. To get the equivalent magnification from the S2IS,
I would need to be about 25mm from the subject, and would be
getting wide-angle distortions, plus having all sorts of
problems getting even lighting on the subject.
> Admittedly, with the Macro lens, a DSLR will probably outperform "most"
> P/S cameras but it is a hassle, an added expense and does expose the
> DSLR sensor to potentially troublesome dust particles.
> Let the flames begin...
> Bob Williams >> Stay informed about: More Panasonic P&S perfection