Joe McGloin (MINMAN) konnte folgendes über das Minolta UW Rokkor-PG 9.5/18mm Fisheye berichten:
http://www.subclub.org/minman/1628.htm
ZITATFOCAL LENGTH: 18mm
f-STOPS: 9.5-22
PERIOD: 1958-1966
INSCRIPTION: MINOLTA UW ROKKOR - PG 1:9.5 f=18mm
DESIGN: 7/5
FILTER: 37.5
DIAPHRAGM: manual
MC: no
MD: no
CLOSE FOCUS: 1.5'
SIZE: 1.9"x2.4"
WEIGHT: 8.5oz.
The 18mm was Minolta's first fisheye and is more often sought after by by collectors than users. Minolta originally called it an "Ultra-wide, panoramic" lens, since the term "fish-eye" was not commonly known. It is a fixed-focus, full-frame fisheye using rear-mounted filters. It was supplied with special lens caps, yellow (Y48) and UV filters (that screw onto the back of the lens with a special spanner wrench), and a special, removable, bayonet-style, lens shade. There are blue dots on the lens barrel and on the hood and lens cap for correct alignment. There was an optional red filter, but any 37.5mm filter can be used. The image in the viewfinder is pretty dark due to the small aperture, but this isn't a big deal since you don't need to focus the lens. Just compose the picture and shoot away. The depth-of-field is so great, even at f9.5, that everything will be in focus. But for the sharpest results, stop down the lens as much as possible -- which, with this lens, isn't much! Despite the short focal length, this lens is a retro-focus design and does not need the mirror lock-up feature used by the 21mm f4 and 4.5 lenses. Minolta made the maximum aperture small so that the lens would be reasonably affordable, but it was still relatively expensive when it was made. As a result, so few were made that the lens is very hard to find and pricey. Most people who are into fisheye optics decide on the 16mm option which typically sells for less anyway.[/quote]
Was die Preise angeht, bin ich nicht seiner Meinung. Von den weiter oben im Thread angesprochenen Angeboten zu Mondpreisen mal abgesehen ist das UW-Fisheye eigentlich eher günstig zu bekommen (ich habe über die Jahre schon mehrere davon für um die 100 Euro bei eBay durchlaufen gesehen). Das spätere 16mm Fisheye spielt da eigentlich konstant deutlich mehr ein...
Randbemerkung: Irgendwo habe ich vor etlichen Jahren mal gelesen, das "UW" stünde nicht für "Ultra-Wide" sondern für "Underwater", weil die Unterwasserfotografie eines der Einsatzgebiete von extremen Weitwinkel- und Fisheye-Objektiven ist. Scheint nicht zu stimmen, wenn das Objektiv als "ultra-wide, panoramic" beworben wurde...
Vgl. auch: http://www.mi-fo.de/forum/index.php?showto...st&p=206261
Viele Grüße,
Matthias