The new full-frame Sigma 180mm F2.8 OS macro lens announced back in January, is set to be available here in the US on July 27th. The price is expected to be $1699. The lens will feature Super Multi-Layer coating, Sigma's 4-stop Optical Stabilizer system (OS), three “F” Low Dispersion (FLD) glass elements, and a silent HSM autofocus.

“Macro photography is becoming quite popular and we’ve been growing our lineup of macro lenses as a result,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “We’re filling a gap in the industry by introducing the world’s first 1:1 180mm F2.8 lens to the market. The Optical Stabilizer technology and the larger focusing distance also provide photographers with more control for highly sensitive subjects that are on the move, like butterflies and insects.”

Product Highlights:

• f/2.8 aperture (instead of the slower f/3.5)
  
• Canon EF Mount
  
• 1:1 Magnification
  
• 4-stop Optical Stabilizer (OS)
  
• FLD Glass Elements Reduce Aberration
  
• Floating Inner Focusing System
  
• Multi-Coating Reduces Ghosting and Flare
  
• Hyper Sonic Motor for Quiet Focusing
  
• Focus Distance of 18.5" / 47cm

I am more than pleased with the Sigma 150. Interested to check this one out.