Re: description of camera design I would like to have



phil-news-nospam@xxxxxxxx wrote:
On Sun, 28 Sep 2008 17:12:06 +1000 dj_nme <dj_nme@xxxxxxxxxxx> wrote:

| The only real differences between your wish and the DMC-G1 is that there | is no pentaprism (what's that needed for? An eyepiece pointed straight | at the EVF screen does the same thing, without requiring a chunk of | expensive, machined glass.) and it seems to use contrast detection AF | only (with no IR RF mechanism).

If they can make an LCD work through a straight line optical path, fine.
I suggested the pentaprism design so that the same eyepiece optics in the
matching mirror based line could be used with the LCD based viewer. That
and the greater optical path length through the pentaprism would allow use
of a larger LCD for better resolution.

The DMC-G1 has an actual 1.4mp (not 470k pixels x 3) EVF, so in this case the prism may be redundant.

I'm thinking of this as NOT for the
P&S market, but for the high end hobby through to pro market, parallel to
the SLR model line, intended to use the same accessories as much as possible,
especially lenses, but also other attachments ranging from special eyepieces
to battery packs to anything else that could make sense.

The Panasonic Mu4/3 camera seems to be aimed at the same market segment, as it can be readily adapted to use 4/3 lenses with a special adaptor tube.
It even looks like a "mini SLR".

The only difference
would be the closer mounting of lenses which would be an advantage for wide
angle lenses, with an adaptor to extend the length for mounting regular SLR
lenses at their proper distance.

That appears to be the intent of the Mu4/3 system as it stands at the moment.
The Olympus version looks more like a P&S like than the SLR styled DMC-G1, but it really remains to be seen what the Oly camera will actually be like.
.



Relevant Pages

  • Re: description of camera design I would like to have
    ... An eyepiece pointed straight ... I suggested the pentaprism design so that the same eyepiece optics in the ... especially lenses, but also other attachments ranging from special eyepieces ...
    (rec.photo.digital)
  • Re: description of camera design I would like to have
    ... An eyepiece pointed straight ... I suggested the pentaprism design so that the same eyepiece optics in the ... especially lenses, but also other attachments ranging from special eyepieces ...
    (rec.photo.digital)
  • Re: What Kind of Eyepiece
    ... I need to view the object with an eyepiece, ... eyepiece lens or optics to look for. ... This is more akin to a door peephole viewer than to an eyepiece. ... I have paraxial solutions that solve the problem but the 2 or 3 lenses ...
    (sci.optics)
  • Re: test lens for telescope use
    ... > I have a astigmatism developing in my eyes, ... > I do not have any test lenses to try, ... would it be possible to mount a test lens (let's say to correct ... > the barrel of the eyepiece? ...
    (sci.med.vision)

Loading