Lcd screen - when?
YDOD
with an LCD screen which is truly usable in bright sunlight, has enough
resolution and reacts fast enough to be suitable for manual focusing and
will brighten the view when the depth of field preview control is activated
so that you can readily check the depth of field. How much longer do you
think it will be before something like that is on the market?
Ken Hart
"YDOD" <walke...@hotmail.com> wrote in message
news:es3dl.98735$3_4....@newsfe10.iad...
A common LCD screen needs to be backlit to be visible, so to be truly usable
in bright sunlight, it requires substantial lighting behind it. This
requires substantial power. You could however have an LCD screen that could
be viewed by having the sun shine through it. Years ago, I had a crappy
little LCD TV set that used this principle: the display had a frosted cover
over the back and the sun (or other light) shone through it to make the
display visible in a small mirror. Did I mention it was pretty crappy?
As for resolution suitable for manual focusing: with a tiny display it's
difficult to see clearly. If the display had a magnification function (a
part of the camera's software) that would allow you to zoom in on the area
where you want to check focus, then present LCD displays would probably meet
your purpose. If you could hook up a 17" LCD display to your camera, I
suspect it might allow you to manually focus just fine. But that kinda
defeats the whole miniaturization thing, doesn't it.
As for brightening when the lens is stopped down to check depth of focus,
that again is a software issue, and to a lesser extent, a power issue.
The market itself determines what goes on the market. Convince manufacturers
that the features you want are wanted by a large segment of the buying
public, and those features will be added. If there were a large customer
base who wanted 25Mp backs for their Hasselblads, there would be dozens of
them on the market at attractive prices. But your first request, the bright
sunlight thing, I doubt will ever be addressed by an LCD display.
Don Stauffer
>
> As for resolution suitable for manual focusing: with a tiny display it's
> difficult to see clearly. If the display had a magnification function (a
> part of the camera's software) that would allow you to zoom in on the area
> where you want to check focus, then present LCD displays would probably meet
> your purpose. If you could hook up a 17" LCD display to your camera, I
> suspect it might allow you to manually focus just fine. But that kinda
> defeats the whole miniaturization thing, doesn't it.
>
could have a display format the same size as a chip. Maybe a full frame
sized LCD (24 x 36mm) would be the best, with a lens equivalent to the
vf optics in a full frame SLR. That smaller display would be easier to
backlight too.
Or, how about a 24 x 36 OLED display? Again with a magnifying lens.
Again, full resolution.
Allen
OLEDS, the problem is life expectancy. He says advances are being made
to considerably improve this issue. I for one will be very glad when
this happens.
Allen