MS-Optical Perar 28mm f/4 Super Triplet

MS-Optical has done it again, introducing what is likely the world's smallest 28mm M lens. The MS-Optical Perar 28mm f/4 Super Triplet!

A limited batch of 180 lenses is being produced and can be pre-ordered now for ¥55,000 ($722 USD) here at Japan Camera Hunter or by sending them an email.

Some of the interesting specifications, especially the diaphragm which is in front of the lens:

  • Triplet Formula lens with high optical stability
  • Ultra compact and lightweight, only 45grams (55 grams with the hood)
  • Triplet design with 3 elements in 3 groups for refined sharpness
  • Premium multicoated lens with a 97% light transmission rate
  • 10 blade aperture diaphragm with smooth selection for a clean bokeh effect
  • Minimum focal distance of 0.8m
  • Unique exposed front aperture element

...and because of the exposed diaphragm there are some interesting usage cautions as well:

  • Use the hood
  • A filter can be attached to the hood (19mm)
  • Avoid excessive force to the aperture blades
  • The front cap can be rotated and attached using your finger nail or coin

Additional photos and information:

A sample photo set on Flickr.