Micro Four Thirds system functions.) For the Four Third lenses that can be mounted on MFT bodies, see Four Thirds system lenses. For the Four Third lenses that support AF, see the Olympus website. For those that support fast AF (Imager AF), see the Olympus website. Wide zoom lenses Standard zoom lenses Telephoto zoom lenses Superzoom lenses On Jan 9, 2012 Sigma announced its first two lenses for Micro Four Thirds, the "30mm 2.8 EX DN and the 19mm 2.8 EX DN lenses in Micro Four Thirds mounts". In a press release posted on January 26, 2012, Olympus and Panasonic jointly announced that "ASTRODESIGN,
What Is and What Should Never Be (Supernatural) creepy look to it". He was pleased to see Smith and Palicki return, and found the character of Carmen to be "a nice addition to the family". Don Williams of BuddyTV agreed, and ranked the episode third in his list of the best episodes of the first three seasons. Deeming it the best standalone episode, he noted that it "can be embraced by anyone who enjoys clever writing, great acting, or a shirtless Jensen Ackles". General Specific Notes What Is and What Should Never Be (Supernatural) "What Is and What Should Never Be" is the twentieth episode of the paranormal