F-Mount Lens Formulae Comparison

The other day I decided to do a quick comparison between Nikon F-Mount lens formulae from Nikon and third party manufacturers. Here are the results…

20/21mm
AF NIKKOR 20mm f/2.8D   Groups: 9; Elements: 12
NIKKOR 20mm f/2.8 AI-S   Groups: 9; Elements: 12
Voigtländer Color-Skopar 20mm f/3.5 SL II   Groups: 6; Elements: 9
Voigtländer Color-Skopar 21mm f/4.0 M-Mount Pancake   Groups: 6; Elements: 8
Zeiss Distagon T* 21mm f/2.8 ZF.2   Groups: 13; Elements: 16

24/25mm
AF NIKKOR 24mm f/2.8D   Groups: 9; Elements: 9
NIKKOR 24mm f/2.8 AI-S   Groups: 9; Elements: 9
Voigtländer Color-Skopar 25mm f/4.0 M Pancake   Groups: 6; Elements: 8
Zeiss Distagon T* 25mm f/2.8 ZF.2   Groups: 8; Elements: 10

28mm
AF NIKKOR 28mm f/2.8D   Groups: 6; Elements: 6
NIKKOR 28mm f/2.8 AI-S   Groups: 8; Elements: 8
Nikon 28mm f/2.8 Series E   Groups: 5; Elements: 5
Voigtländer Ultron 40mm f/2.0 M-Mount  Groups: 8; Elements: 10
Zeiss Distagon T* 28mm f/2.0 ZF.2   Groups: 8; Elements: 10

35mm
AF NIKKOR 35mm f/2.0D   Groups: 5; Elements: 6
NIKKOR 35mm f/1.4 AI-S   Groups: 7; Elements: 9
AF-S DX Nikkor 35mm f/1.8G   Groups: 6; Elements: 8
Nikon 35mm f/2.5 Series E   Groups: 5; Elements: 5
Voigtländer Nokton Classic 35mm f/1.4 M-Mount   Groups: 6; Elements: 8
Voigtländer Color-Skopar Pan 35mm f/2.5 M-Mount Pancake   Groups: 5; Elements: 7
Zeiss Distagon T* 35mm f/2.0 ZF.2   Groups: 7; Elements: 9
Zeiss Distagon T* 35mm f/1.4 ZF.2   Groups: 9; Elements: 11

40/45mm
Nikon 45mm f/2.8 P   Groups: 3; Elements: 4
GN Auto-Nikkor 45mm f/2.8 Pancake   Groups: 3; Elements: 4
Voigtländer Nokton Classic 40mm f/1.4   Groups: 6; Elements: 7
Voigtländer Ultron 40mm f/2.0 SL II   Groups: 5; Elements: 5

50mm
NIKKOR 50mm f/1.2 AI-S   Groups: 6; Elements: 7
AF-S NIKKOR 50mm f/1.4G   Groups: 7; Elements: 8
AF-S NIKKOR 50mm f/1.8G   Groups: 6; Elements: 7
NIKKOR 50mm f/1.4 AI-S   Groups: 6; Elements: 7
AF NIKKOR 50mm f/1.8D   Groups: 5; Elements: 6
NIKKOR 50mm f/1.8 AI-S   Groups: 5; Elements: 6
NIKKOR 50mm f/1.8 Series E   Groups: 5; Elements: 6
Zeiss Makro-Planar T* 50mm f/1.4 ZF.2   Groups: 6; Elements: 7
Zeiss Makro-Planar T* 50mm f/2.0 ZF.2   Groups: 6; Elements: 8