Coral

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Q Coral Lens on an Aires Viscount M2.8 image by Hans Kerensky (Image rights)

Coral (コーラル, kōraru) was the brand used for lenses by Shōwa Kōki, and, after the absorption in 1953 of that company by Aires, by Aires itself. It was produced until around 1962.

Lens list

Coral / 3-element 3-groups
1:3.2/f=4.5cm	Aires35 II
1:3.5/f=4.5cm	Aires35 I
1:3.5/f=7.5cm	AiresFlex Z Aires Automat AiresFlex U AiresFlex IV, IV SA Aires Viceroy
Q Coral / 4-element 3-groups
1:2.8/f=4.5cm	Aires35 IIIA Aires Viscount Aires M28, M2.8, ViscountM2.8
1:2.8/f=5cm	Aires35 IIA Aires Penta35, Ever
1:3.2/f=4.5cm	Aires35 IIIB
1:3.5/f=7.5cm	AiresFlex Z
P Coral / 5-element 4-groups
1:2.4/f=4.5cm	Aires35 IIIC
H Coral / 6-element 4-roups
1:1.8/f=4.5cm	Aires35 IIIS IIISA Aires 35-V
1:1.9/f=4.5cm	Aires35 IIIL Aires35 IIIC Aires 35-V Aires Viscount Aires Radar Eye
1:2/f=4.5cm	Aires35 III
1:2/f=5cm	Aires Penta35, Penta35 LM, EVER
S Coral / 7-elements 4-groups
1:1.5/f=4.5cm	Aires 35-V
W Coral / 4-elements 3-groups
1:3.2/f=3.5cm	Aires 35-V
TELE Coral / 5-elements 3-groups
1:3.5/f=10cm	Aires 35-V
Auto S Coral / ?-elements ?-groups
1:1.4/f=55mm	Aires Fa

Source / further reading

In Japanese:

• Hagiya Takeshi (萩谷剛). "Airesu no kamera: Yarūfurekkusu soshite 6×6-han niganrefu, 35mm kamera e (アイレスのカメラ：ヤルーフレックスそして6×6判二眼レフ、35mmカメラへ, The Aires cameras: From the Yallu Flex to 6×6 TLRs and 35mm cameras). Chapter 5 of Zunō kamera tanjō: Sengo kokusan kamera jū monogatari (ズノーカメラ誕生：戦後国産カメラ10物語, The birth of the Zunow camera: Ten stories of postwar Japanese camera makers). Tokyo: Asahi Sonorama, 1999. ISBN 4-257-12023-1.