18 Apr
2004
18 Apr
'04
2:28 p.m.
I thought the cameras that used glass slides, the
photographer coated
the plates with the light sensitive stuff before use.
With the some proceses -- the one nicknamed 'wet plate' for example --
yes you did. The checmicals had to be wet during the exposure. But the
'dry plate' processes used pre-coated plates, you used to be able to buy
these ready-made (in fact when I made the hologram I mentioned a couple
of days ago, the sensitive material was a very slow (and hence fine
grain) plate.
I did read somewhere that one of the early
photographic process used
the same process as XEROX copiers. I wonder if nowdays that could be
I find that hard to believe, the Xerox process is essentially
electrostatic. I've never heard of it being used in a normal camera.
improved on, as it the time over 100 years ago it gave
better quality
photographs.
PS. I think a GOOD B&W photograph in many ways better than a quick
blurry grainy color photo.
Depedns on what it's for. If it's to remind me which order to connect a
bundle of wires, then I'll want a colour picture ;-)
More seriously, I agree with you in general. Good B&W pictures _are_ good.
-tony