The Yale was a simpler and cheaper range to the Adams de Luxe. It was usually fitted with a changing bag permanently fixed to the camera, early models though could be supplied with dark-slides.

Five models were produced:

• No. 1 - 3 ¼" x 4 ¼", Rapid Rectilinear lens.
• No. 2 - 3 ¼" x 4 ¼", Cooke lens, superior finder, rising front and rack and pinion focusing.
• No. 3 - 4" x 5", Rapid Rectilinear lens.
• No. 4 - 4" x 5", Cooke lens.
• No. 5 - 6 ¾" x 3 ¼" stereo, f7.5, 5" Ross Rapid Aplanat or a f6.3, 4 ⅛" Zeiss VIIa lens.

The No. 1 and No. 2 appeared around 1897, the No. 3 in c.1899 and the No. 4 a little later. The No. 5 appeared in c.1900.

A short time after their introduction the cover to the changing compartment was made much deeper and the handle was fixed to the rear of the camera, previously it connected the front and the rear spanning the rising front. In 1900 the shutter was modified, the speed was now shown on a circular disc rather than on a flat plate. Around the middle of the 1900s the cheaper models were dropped from the range shortly followed by the other models.