Main Specifications - Pentax smc -FA Operating Manual

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*AL: Lens with an aspherical element.
ED: Lens using an Extra-low Dispersion glass.
IF: Lens with internal focusing.
Lens
FA 31mm f/1.8AL Limited
FA 35mm f/2AL
FA 43mm f/1.9Limited
FA 50mm f/1.4
FA 77mm f/1.8Limited
FA 600mm f/4ED (IF)
FA J 18-35mm f/4-5.6AL
FA 20-35mm f/4AL
FA J 28-80mm f/3.5-5.6AL
FA 28-105mm f/3.2-4.5AL (IF)
FA J 75-300mm f/4.5-5.8AL
FA J lenses do not have an aperture ring. The aperture is controlled at the A
[Auto] position.

Main Specifications

Construction
9 elements in 7 groups
6 elements in 5 groups
7 elements in 6 groups
7 elements in 6 groups
7 elements in 6 groups
9 elements in 7 groups
12 elements in 10 groups
10 elements in 8 groups
8 elements in 8 groups
12 elements in 11 groups
12 elements in 10 groups
Minimum Angle of View
Aperture [F] (Diagonal extent)
22
22
22
22
22 31.5°
32
22-32 100°-63°
22 94°-63°
22-38 75°-30.5°
22-32 75°-23.5°
32-38 32°-8.2°
70°
63°
53°
47°
4.1°