Sans Mirror — mirrorless, interchangeable lens cameras  

• NX lens format (Samsung)
• 10 elements in 8 groups, 2 aspherical, 1 ED element
• 60 to 99 degree angle of view
• apertures from f/4 to f/22 at 12mm, 7-blade rounded diaphragm
• OIS image stabilization
• 10" (0.24m) minimum focus, autofocus, internal focus, iFunction
• 58mm filter size, no lens hood
• 2.6" x 2.5" (65.5 x 63.5mm) long and diameter (retracted)
• 7.3 ounces (208g)
• available in black
• Model number S1224IB, comes as included kit lens with some camera bodies, US$600
• Announced September 18, 2012, shipped in early 2013

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• NX lens format (Samsung)
• 12 elements in 9 groups
• 29 to 76 degree angle of view
• apertures from f/3.5 to f/22 at 18mm, ?-blade rounded diaphragm
• OIS image stabilization
• 11" (0.28m) minimum focus, autofocus, internal focus, iFunction
• 58mm filter size, no lens hood
• 2.5" x 2.6" (63 x 65mm) long and diameter (retracted)
• 6.9 ounces (195g)
• available in silver and black
• Model number S1855IB, comes as included kit lens with some camera bodies, US$250

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• NX lens format (Samsung)
• ? elements in ? groups, ? aspherical
• 29 to 76 degree angle of view
• apertures from f/3.5 to f/22 at 18mm, ?-blade rounded diaphragm
• OIS image stabilization
• 11" (0.28m) minimum focus, autofocus, internal focus
• 58mm filter size, no lens hood
• 2.5" x 2.6" (63 x 66mm) long and diameter (retracted)
• 6.9 ounces (195g)
• available in black
• Model number S1855SB, was included kit lens with some camera bodies, Discontinued

Note: This is the older of the two 18-55mm, and predates iFunction. 

• NX lens format (Samsung)
• 18 elements in 13 groups, 3 aspherical, 2 ED elements
• 8 to 76 degree angle of view
• apertures from f/3.5 to f/22 at 18mm, 7-blade rounded diaphragm
• OIS image stabilization
• 1.6' (0.5m) minimum focus, autofocus, internal focus, iFunction; 1:3.6 maximum magnification
• 67mm filter size, included lens hood
• 4.15" x 2.83" (105mm x 72mm) long and diameter (retracted)
• 1.27 pounds (578g)
• available in black
• Model number L18200MB, US$800

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• NX lens format (Samsung)
• i-Scene function
• 9 elements in 8 groups, 1 aspherical, 1 ED elements
• 31 to 70 degree angle of view
• apertures from f/3.5 to f/22 at 20mm, 7-blade rounded diaphragm
• no image stabilization
• 11" (0.28m) minimum focus, autofocus, internal focus, iFunction; 1:4.5 maximum magnification
• 40.5mm filter size, no lens hood
• 1.5" x 2.5" (40mm x 64mm) long and diameter (retracted)
• 4.2 ounces (119g)
• available in black, includes pouch
• Model number S2050NB, US$250, but comes as kit lens with most Samsung models

• NX lens format (Samsung)
• 17 elements in 13 groups, 2 ED elements
• 8 to 31 degree angle of view
• apertures from f/4 to f/22 at 18mm, 7-blade rounded diaphragm
• OIS image stabilization
• ?" (0.98m) minimum focus, autofocus, internal focus, iFunction; 1:5 maximum magnification
• 52mm filter size, included lens hood
• ?" x ?" (70 x 100.5mm) long and diameter (retracted)
• ? ounces (417g)
• available in black
• Model number T50200SB, Discontinued

Note: This is the older version of this lens, and predates iFunction.

• NX lens format (Samsung)
• 17 elements in 13 groups, 2 ED elements
• 8 to 31 degree angle of view
• apertures from f/4 to f/22 at 18mm, 7-blade rounded diaphragm
• OIS image stabilization
• 3'2" (0.98m) minimum focus, autofocus, internal focus, iFunction; 1:5 maximum magnification
• 52mm filter size, included lens hood
• 2.76" x 4.15" (70 x 100.5mm) long and diameter (retracted)
• 14.7 ounces (417g)
• available in black
• Model number T50200IB, US$350

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• NX lens format (Samsung)
• 7 elements in 5 groups, 1 aspherical element
• 180° diagonal angle of view
• apertures from f/3.5 to f/22, 7-blade rounded diaphragm
• no image stabilization
• 3.5" (0.09m) minimum focus, autofocus, internal focus, iFunction; 1:4.5 maximum magnification
• no filter ring, built-in slight petal hood
• 1 x 2.3" (26.3 x 58.8mm) long and diameter (retracted)
• 2.5 ounces (72g)
• available in white or black
• Model number W10NB, US$?
• Announced June 2013, ships late 2013

• NX lens format (Samsung)
• 7 elements in 6 groups
• 83 degree angle of view
• apertures from f/2.4 to f/22, 7-blade rounded diaphragm
• no image stabilization
• 7" (0.18m) minimum focus, autofocus, internal focus, iFunction; 1:5 maximum magnification
• 43mm filter size, no lens hood
• 2.4" x 0.94" (61.5 x 24mm) long and diameter (retracted)
• 2.6 ounces (75g)
• available in black or white
• Model number W16NB, US$350

Thom's Mini Review: A surprisingly good lens for very little cost. Much better than Sony's 16mm for the NEX system. Indeed, about as good a 24mm equivalent as we've seen in mirrorless that's small and light. Optically very good, even wide open. Recommended

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• NX lens format (Samsung)
• i-Scene function
• 6 elements in 4 groups, 1 aspherical element
• 50 degree angle of view
• apertures from f/2.8 to f/22, 7-blade rounded diaphragm
• no image stabilization
• 7" (0.17m) minimum focus, autofocus, internal focus, iFunction; ? maximum magnification
• 43mm filter size, no lens hood
• 2.4" x 0.96" (62 x 24.4mm) long and diameter
• 3.13 ounces (89g)
• available in black, comes with stand (!)
• Model number W20NB, US$350

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• NX lens format (Samsung)
• 5 elements in 5 groups
• 70 degree angle of view
• apertures from f/2 to f/22, 7-blade rounded diaphragm
• no image stabilization
• 10" (0.24m) minimum focus, autofocus, internal focus; 1:6.25 maximum magnification
• 43mm filter size, optional LH30NB lens hood
• .8" x 2.4" (21.5 x 61.5mm) long and diameter 
• 3 ounces (85g)
• available in black
• Model number S30NB, US$300

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• NX lens format (Samsung)
• 7 elements in 6 groups
• 34.7 degree angle of view
• apertures from f/1.8 to f/22, 9-blade rounded diaphragm
• no image stabilization
• 20" (0.5m) minimum focus, autofocus, internal focus; 1:8.33 maximum magnification
• 43mm filter size, included lens hood
• 2.4" x 1.75" (61.5 x 44.4mm) long and diameter 
• 4.1 ounces (115g)
• available in black
• Model number S4518, US$500
• Announced Jan 3, 2013, ship March 2013

Note: replaces earlier announced, but not shipped, 45mm f/1.8 lens, with slightly different specs.

• NX lens format (Samsung)
• 12 elements in 9 groups
• 26 degree angle of view
• apertures from f/2.8 to f/22, 7-blade rounded diaphragm
• OIS image stabilization
• 7.25" (0.18m) minimum focus, autofocus, internal focus, iFunction; 1:! maximum magnification
• 52mm filter size, included lens hood
• 3.3" x 2.9" (84 x 73mm) long and diameter 
• 16 ounces (450g)
• available in black
• Model number M60SB, US$600

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• NX lens format (Samsung)
• 10 elements in 8 groups
• 18.8° angle of view
• apertures from f/1.4 to f/22, 9-blade rounded diaphragm
• OIS image stabilization
• 32" (0.82m) minimum focus, autofocus, internal focus, iFunction; 1:7.7 maximum magnification
• 67mm filter size, included lens hood
• 3.6" x 3.1" (92.2 x 79mm) long and diameter 
• 24.5 ounces (696g)
• available in black
• Model number EX-T85NB
• US$1000

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Are Samsung NX lenses the same as Sony NEX lenses?

No. The Samsung NX lens mount and the Sony NEX lens mount are different. Someone really ought to shame them for their relentless mimicry of others. While they're good at it, the intentionally introduce confusion.

Can I use non I-function NX lenses on current cameras?

Sure. But you won't have an I-function button on the lens, obviously, and thus can't invoke functions from the lens.

What's the actual focal length of the NX lenses?

The focal length is always stated correctly on the lens (and in my pages). Because the Samsung cameras use APS sensors, however, the angle of view that these lenses cover is 1.5x what you would expect if you were using a 35mm film (or full frame digital) camera. For example, the 16mm Samsung is equivalent to a 24mm lens on a 35mm film camera. See my article on angle of view.

What does the term pancake mean?

The 16mm, 20mm, and 30mm lenses are often referred to as "pancake lenses" because they are incredibly thin; they don't stick out far from the camera. Any lens that has very little length to it is invariably called a pancake lens by enthusiasts. Some people refer to the 20-50mm lens that way, too, but while it's small for a zoom lens, it really isn't quite what most people would call pancake.

Who makes these lenses? Are they any good?

Samsung designs and makes the lenses, though I suspect that they get some design help and glass from other Korean makers, such as Samyang. And most of the Samsung lenses I've tried so far are quite good designs optically. I wouldn't avoid the Samsung lenses just because they're made in Korea.