Winsor and Walt -
Look at Photo 2 at f5.6 (second row in the second group on the page). The
out-of-focus highlights to the right of the tree in the TE are definitely
polygons (hexagons I think), while the APO ones are rounder and thus
smoother. Depends on what you want for any given image, though.
I've taken a shot with my Zuiko 50/3.5 I didn't like because the little
hexagons in the background made it look rough. (Actually I've taken lots I
didn't like, but those weren't the lens' fault. I've taken lots I did like.
But I digress...) I wanted smooth in this case.
Try taking a shot with an XA at about 5.6 with an out-of-focus background.
It has a sort-of four-bladed iris; background can be quite rough. Six blades
(many Zuikos) is smoother, eight or nine even better.
I myself am skeptical of many of these kind of claims (remember monster
speaker wire?), but this one I can see.
Regards,
Andrew
I looked, but could detect little difference with the smaller images
you refer to. With the larger versions I could see a difference. I
could detect no polygons, but the little out of focus circles were
bigger and more hard edged with the Tele-Elmarit. As Walt remarked,
it may make a more pronounced difference with a large print or
projection.
--
Winsor Crosby
Long Beach, California
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