Archived posting to the Leica Users Group, 1999/10/15

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Subject: RE: [Leica] Thanks
From: Jem Kime <jem.kime@cwcom.net>
Date: Fri, 15 Oct 1999 20:52:13 +0100

Hi folks.
back again, the car's repaired and I'm feeling happy again...

Mike's comments on the Japanese translations for the Konica RF prompt me to 
post the recent details on that french Panomigon lens, I've also 3 pictures 
(lens, v/f, and lens on an M6) for those who'd like to reply seperately and 
request them. I've soothed this press release out from the original pigeon 
English but the 'orthometric' (f22) reference is beyond me, does that mean 
the minimum aperture?

best regards,
Jem



PANOMIGON F=15MM

An ultra wide-angle lens of 110? (diagonal) angle of view, 100? 
(horizontal) and 77? (vertical).
Apertures f 8 - 22(ACV*) for 35mm formats, both 24 x 36 mm and 'panoramic', 
13 x 36 mm with 39 mm diameter screw-mount, (Leica thread).

The Panomigon is a modern ultra-wide-angle lens of 15mm focal length, 
conceived by computer aided design with powerful calculation software. 
Perfectly corrected, it is nearly devoid of distortion: the lines of the 
subject remain straight, despite a record angle of image of 110? and a 
geometrical aperture of f 8.

The surprising optical and mechanical quality of this optic, along with its 
compact ergonomics (the optic exceeds the camera body by hardly 7mm) make 
this lens a very handy tool. The Panomigon 15mm lens allows to you to 
explore the vertiginous emphasis of perspectives, to emphasise foregrounds, 
and to fully exploit the 35mm panoramic format (13 x 36mm). It is the 
perfect tool for reportage as well as for architecture photography.

Its construction type is retrofocus and its ACV system (Auto Compensation 
Vignetting) developed by Lux Technologies ensures an even distribution of 
the intensity of illumination at the film plane. The ACV system cleverly 
replaces the expensive centre graduated neutral density filter required by 
other extreme wide-angle lenses.

The photometric aperture is f 22. An orthoscopic optic, the Panomigon 15mm 
defines its performance by an almost total absence of linear distortion, 
thanks to the utilisation of high refractive index glass. The very weak 
curvature of the front lens element allows the use of filters and other 
creative accessories in the standard diameter of 49mm, something, again, 
which is not usually available in other, similar, optics.

The very robust metal mechanism ensures longevity and provides good looks. 
Internal parts undergo micro sandblasting prior to an anodic anti-flare 
process yielding a deep matt black. The lenses, made of SCHOTT and CORNING 
optical glass of exceptional quality, are manufactured in France with the 
most extreme precision, thanks to tools conceived especially for Lux 
Technologies. Each lens receives an anti-reflection multi-coating 
appropriate to its refraction index, this is essential to produce sharp 
images with maximum contrast, providing the most vivid and true colours; 
the secondary spectrum is here reduced to the minimum.

Each Panomigon 15mm lens is checked with the greatest care, not only on 
optical test bench using M.T.F. measurements, (Modulation Transfer 
Function), but also by photographic tests with film, to which Lux 
Technologies assigns a great importance. All this so the highest level of 
quality can be reached.

An indispensable complement of the Panomigon is the 15mm viewfinder that 
fastens on the camera body by the accessory shoe. It includes a multi-axis 
spirit level, essential for architecture photography.


LUX TECHNOLOGIES
221 rue Lafayette 75010 PARIS (F)
Tel/Fax :33 01 43 01 10 08
E-mail : lux.technologies@free.fr