Used Navitar f/0.95 fast lens, 25 mm focal length, manual adjustment of the aperture / focus rings. Camera threading: C-Mount (1.00"-32), filer threading: M40.5 x 0.5. The lens is used, but is in "as new" condition - the optics are absolutely clean and clear, adjustment rings move smoothly. Perfect working order. The lens is not in its original packing, but will be carefully packed and shipped with Royal Mail Special Delivery service (hence the P&P cost).

• Focal length: 25.0mm
• F/NUMBER: F/0.95~16
• Iris control: MANUAL, LOCKABLE
• Focus control: MANUAL
  
• Diagonal full field of view: 35.5°
• Min. working distance: 0.5m
• Diameter: 42 mm
• Length: ~50.7 mm

Please have a look at my other listing for a B+W lens adapter (58.0x0.75 to 40.5x0.50) which can fit on this lens.