Nikon Nikkor Ai 135mm f3.5

The Ai 135/3.5 is an all new lens with updated optics, considerably smaller and lighter that the previous version. It focuses to 1.3m compared to 1.5m for the previous version, and features a built-in hood.

Version Serial no Date Screws Engraving Notes
Ai 193501 < 193628 – 202984 > Mar77 - 5+ LMIJ Early lenses engraved "LENS MADE IN JAPAN" in white on the the barrel above the chrome ring. Start serial no from F601 service manual.
Ai < 204031 – 296559 > - Sep81 5+ MIJ Engraved "MADE IN JAPAN" in black. From around 22xxxx aperture coupling prong made from pressed sheet metal.

Version	Serial no	Date	Screws	Engraving	Notes
Ai	193501 < 193628 – 202984 >	Mar77 -	5+	LMIJ	Early lenses engraved "LENS MADE IN JAPAN" in white on the the barrel above the chrome ring. Start serial no from F601 service manual.
Ai	< 204031 – 296559 >	- Sep81	5+	MIJ	Engraved "MADE IN JAPAN" in black. From around 22xxxx aperture coupling prong made from pressed sheet metal.

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Review by Ken Rockwell