--- In ManualMinoltaFree@yahoogroups.com
, degaon@... wrote:
> In a message dated 10/9/2006 3:18:42 AM Eastern Daylight Time,
> michael.stewart@... writes:
> Actually, you can change the aperture setting on your X-700 while in P mode
> and get different results. I used to do this sometimes with a 200mm to fool the
> program into favoring a higher shutter speed. You can also do it to limit the
> minimum aperture that the camera can use.
> But then, can you call it true P mode ?
> Q: if the P mode says it wants 125 at f11 and you set the apperture to f5.6
> what exactly happens and what is the exposure parameters of the photo taken ??
> David Gaon
The camera will choose 1/250. Try it; you will see the speed change. In P mode,
however, there's no way of knowing the aperture the camera has set at 1/125 at the
time except by then switching to A mode and finding the match by trial and error . .
.unless you can either hold a mental map of EV values/apertures/film speeds or do
what I suggest below and carry a bundle of graphs around with you.
The graph of P mode characteristics (including when the lens is set at f5.6!) for an
f1.4 at ISO 100 are on p30 of the X-700 manual. For an f1.7: 1/250:f1.7; 1/500:f2.8;
1/1000 f5.6 -- EV8-14. You'd get 1/750 at f4. Set at f22, it would use the full range
from 1/60=f1.7 to 1/1000=f22.
It's that graph that gives the clue to doing this trick but Minolta didn't actually spell it
out, presumably because you will, of course, be liable to get the "under" exposure
light blinking at you quite often doing this, and I'd guess they thought that would
really confuse the unwary. Much safer to tell people to change the aperture to f22 if
the P blinks. But it is a very useful way, as Michael says, of making sure you don't find
yourself taking a snap with a 200mm tele (or even a 35-105mm zoom at its longest,
if it comes to that) at 1/60 hand-held in P mode. I dare say most of us have done
that, realised afterwards, and gone "OH - - - -!"
If anyone cares to, they can work out what you'd get for other ISO speeds from that
graph. That'd be a useful exercise for someone :-)