see also:

• fisheye lenses
• a catalogue of Micro Four Thirds lenses

• manual focus
• circular image
• no electronic contacts
• aperture ring but marked stops are only f/2, f/4, f/8 and f/22 and is clickless
• close focus to 5cm but focus is almost impossible to be accurate
• available in Sony E-mount, Fuji, Canon EF-M and Micro Four Thirds system, although with MFT, the circle is cropped
• ePhotozine review
  • sharp centre wide open but best at f/4
  • edges soft but improve to peak at f/16 although centre becomes softer so f/8-11 may be best option
  • well controlled CA but increases at f/16

• manual focus
• 519g
• 9 rounded blades
• 11 element in 8 groups
• aperture ring
• close focus 0.1m but focus is almost impossible to be accurate
• ePhotozine review
  • sharpest at f/11