Re: PHOTO-3D digest 1151

[bobh@xxxxxxxxxxxxx (Bob Howard)]

RE: Ray Hannison and Duplex vs Realist!

The better color saturation could have been a fluke due to a number of
reasons. Perhaps Realists give good saturation because the lens cover
is somewhat of a lens shade and most shoot without? I once shot some
pictures with a 1940 Ektra soon after I got it. The pictures were so
spectacular that I even sent some to Kodak and got a nice letter from
some your guy impressed that an Ektra was still in use in 1985 or so.
This camera had coated lenses and made "prewar" and I thought boy they
really made good lenses for that expensive camera. Later I realized
that in testing this camera I had put in a new roll of High Definition
FUJI film that had just come out (color neg). I had given credit to
the wrong system. It was the new film that gave results like I had
never seen, not the old Ektar lenses..which I guess were rejuvinated
with the exposure to such an improved film. So moral is that 1960 lens
is not apt to be much better than 1945 lens (as new glasses came in in
WW2), but that film gets better all the time!! Some cameras like the
Fuji SLRs gave superior results because of excellect blackening of the
mirror box. So each link of the chain contributes. Tessars are often
much sharper than six or seven element Gauss lenses outdoors at small
f/stops just because of higher contrast due to fewer elements. And all
those extra elements did nothing except make F/2 usable. BobH


------------------------------