RA> I'm not sure you got my point. Design of optics is not necessarily a

Perhaps not :-) I am sometimes not sure if I even understand my
point... <g>

Personally, I don't care much if the lenses are Fuji design or Hassy
specified or Schneider or whatever... as long as they are good, which
they are. I would be glad to own any Hasselblad :-)

One example of good lens is the Cosina 4/25mm - it is small and has
that Leica look in pictures, at a fraction of the price.

RA> However, AL and ED designs are important to make more compact and 
RA> sometimes sharper optics, of course just the name is not worth anything
RA> but with modern computer technology the mix of different lenses with
RA> different refraction indexes make it much easier to make better and more

I am no expert here. But definitely we lately saw many extreme lenses
not done before, full frame 12-24 zooms, 12mm rectilinear rangefinder
lenses, etc. Most probably because of the things you mentioned.
Aspheric surface is said to count as two normal surfaces regarding the
designers' freedom, IIRC.

RA> compact optics with minimal input in the design. The best and sharpest
RA> optics is however a combination of good design and minute exactness.
RA> This last point is where the best glass is achieved from e.g. Pentax -
RA> also quality control.

I definitely agree. Even though I am no expert :)

In the end, it comes to good lenses or bad lenses, no matter what
designations they have.

Frantisek



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