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Specification

Source of data

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Manufacturer description

FULLY AUTOMATIC, METER-COUPLED Spiratone 135mm f/1.8 TELEPHOTO

You'd have never bought your camera with an f/3.5 or an f/2.8 normal lens - so why settle for a slow telephoto lens?

Spiratone's ultra-speed telephoto lens, truly an achievement in modern optical design, is not just 'fast' - it is an outstanding optical performer, even at its maximum aperture. Its evenness of illumination is close to perfection; as for definition, freedom from flare, color correction, the Spiratone f/1.8, wide open (which is what counts!) matches the best ultra high speed lenses made.

Mechanically, the lens handles smoothly - its construction, down to the last detail, is true 'quality'.

Imagine the low light level shots - indoor sports, theatre, concert, general reportage which call for a telephoto - but where f/2.8 just can't do it - f/1.8 can - your gain 2.4X the speed (over f/2.8)!

For Canon, Mamiya, Minolta, Miranda, Nikkormat, Nikon, Pentax, Petri, Praktica, Yashica 35mm focal plane SLR cameras.

For Canon Ftb, F 1 (with fully automatic open aperture metering), for Konica Auto Reflex, Mamiya XTL, Pentax ES (with fully automatic EE operation).

From the Exakta Equipment Information Service (No. 571)

Strange, how you can feel the quality of a lens by handling it. Rokunar lenses always feel right. One senses the precision, the quality, long before the first tests shots really show the superb quality. The 135mm F1.8 Fully Automatic Rokunar is a true Rokunar! It gives you wire sharp telephoto shots, even under the most adverse light conditions. And since you focus and view at F1.8, the Viewing Image is ultra bright and the focus ultra sensitive. Now you can use your telephoto lens for shots where you formerly had to compromise by using your normal lens.

From the editor

A version of the 135/1.8 lens with the Sigma YS interchangeable mount.

The lens was also produced under the following names:

• AUTO ADMIRAL LENS 1:1.8 f=135mm (s/n begins with "1");
• AUTO BEROFLEX LENS 1:1.8 f=135mm (s/n begins with "1");
• JAVELIN TELEPHOTO 1:1.8 f=135mm (s/n begins with "4");
• PETRI C.C Auto Petri 1:1.8/135mm (s/n begins with "1");
• AUTO POLARIS LENS 1:1.8 f=135mm (s/n begins with "0");
• AUTO RAYNOX POLARIS LENS 1:1.8 f=135mm (s/n begins with "1");
• AUTO ROKUNAR LENS 1:1.8 f=135mm (s/n begins with "1");
• SAMIGON TELEPHOTO 1:1.8 f=135mm (s/n begins with "0");
• SOLIGOR TELE-AUTO 1:1.8 f=135mm (s/n begins with "6").

The optical design of this lens differs from that of the Sigmatel/Sigma-XQ 135/1.8 ⌀77 YS.

Notes

• Independent-brand lenses were made for 35mm film SLR cameras by companies that competed with the camera manufacturers. Some came from factories that made lenses under their own brand names (Angenieux, Kiron, Sigma, Tamron, Tokina). Many others were national and international marketing organizations (Kalimar, Panagor, Rokunar, Soligor, Starblitz) that bought lenses from anonymous manufacturers. One firm — Vivitar — actually designed its own lenses and accessories, which were then subcontracted to manufacturing firms. Still others were private labels, sold only by specific photo specialty shops (Cambron, Quantaray, Spiratone).

Lenses with similar focal length