Wide Angle Anastigmat f6.3 89mm (3.5in) for 5x4, 7in for 1/2plate. See Wra013 This is in the same design group as the Zeiss Topogon, with very deep external curves and a thick walled Gauss layout. The 89mm version is a generous design. In use it covers 90° at f11 and 100° at f16 or less, or as the B.J.A. 1950 p212 found at f6.3 it covers a 1/4plate, (75°) almost perfectly, at f11 a 1/2plate with a little fall off and at f16 a 1/2plate is well covered. They said it would be ideal for a 5x4in camera, and: (a) it was available in an Epsilon shutter, but: (b) the illustration was of a lens in a barrel mount at No70,890 (advert. idem, p418) and these have been seen but are the uncommon version. (This coverage is a touch less than the Schneider Angulon and the contrast and corrections are probably a touch less good. But for many purposes the lenses are a close match. Users did find that the Wray had a lower contrast under difficult conditions and ultimately chose the Angulon as the more reliable. Today with multicoating it might be a closer run thing.)
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