Re: Maxxum 7xi/7D ; Expansion cards and instructions from Minolta "veritas" <coming_soon@yahoo.com> schreef in bericht
A lot of functions of the expansion cards are nowadays build into the modern
camera. Some point and shoot camera's have often more functions build in.
The DSlr's only have a few functions build in.
(Portret, sports, closup, night exposure are normally present.)
Minolta had some functions which can not be delivered by the modern camera.
On the 7xi they introduced the 'automatic' zoom. So switching the camera on
it decided what the 'initial' zoom position should be. Another option with
the
'child' card was that the child could be kept the same 'size' in the picture
even
if the child was moving to or from the camera.
Another function was showing more wide angle in the viewfinder than the
the picture would take. (During the picture taking the lens would zoom in,
take the picture and zoom out).
All this was offcourse limited by the lenses zoom capabilities.
All these zoom functions I have never seen again on a SLR (or DSLR) there
might be some point and shoot camera's witch had something similar to
the 'child' function.
Most off the cards were to expensive for the 'extra' functionality those
cards
offered, but I know off people who for example bought the close up expansion
card because they did a lot of closeup's and did not have the knowledge to
do
it themselves.
Remember there are only a few parameters which actually make the picture.
(location 3 coordinates, direction and rotation 3 parameters, time 1
parameter
these seven are determined by holding the camera and pushing the
shutterrelease).
Then there are only four parameters: shutterspeet, aperature, zoom,
focusdistance,
which are controled by the camera.
But then there are hundreds of methods to set these parameters.
The expansion card just added to the methods of setting the parameters not
to expanding the number of parameters or expanding the parameters.
I do ignore film-, ccd parameters, postprocessing and quality.
ben.
Ben Brugman
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