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Review Summary
2012-10-31T21:00:00
Although this lens is much cheaper than the equivalent Nikkor AFS 24 f/1.4 it's a tremendous bargain based on the cost of the $1999.00 Nikon with a cost savings of $1450.00! It delivers amazing images, sharp and contrasty especially with a good cicular polarizer. The best part is the amazing 1:2.3 macro or close focusing ability of this lens. Wide angle macro's are simply a lot of fun and adds a different perspective to wide angle photograhy.
MARK S.
2008-06-11T21:00:00
My sample was not focusing correctly on Nikon AF bodies (F5, D300). Focus was just really off. It is very built, heavy, metal. On an FM2, the manual focus allowed for relatively sharp pictures at f1.8. Not amazing, but OK for price paid. I returned mine and do not know if will try another anytime soon.
dmitry
2007-09-18T21:00:00
This is a very good lens regardless of price. Sharp focus, very little light fall off at any focal length, very versitle and produces great bokeh! If it is an EX lens...especially a Macro lens...think Sigma. All day over Nikon!
jmark l.
2007-02-12T19:00:00
Some great outdoor shots with polarizer.
Al
2006-10-29T19:00:00
Photo quality is excellent. Pictures are sharp and have great color. This is my indoor/low light/night lens. I just thought I busted my lens when the focusing mechanism was moving forward a bit. I just realized that this was how Sigma designs its manual focus - slide the lens by a few mm's. I'd rather have a switch AF/MF.
Noël
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9 groups /10 elements
84.1°
22
18cm / 7.1"
1:2.7
77mm
83 x 80mm / 3.3 x 3.1"
Full Extended Length 85mm / 3.3 "
485g / 17.1oz.

Sigma 24mm f1.8 EX DG Aspherical Macro is one of the EX Series lenses. This lens has a fast F1.8 maximum aperture with macro focusing capability of minimum focusing down to 18cm/7.1 inches (reproduction ratio 1:2.7). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image.
It incorporates the floating focus system and uses two aspherical lens elements for minimizing distortion and spherical aberration and astigmatism. Internal focus system eliminates front lens rotation, thus allowing the use of a Perfect Hood and the easy use of polarizing filters.
The lens incorporates non-vignetting optical construction, in order to obtain adequate peripheral brightness even at open aperture. This is desirable for digital cameras. The lens also incorporates dual-focus mechanism.
It is easy to hold the lens, since focusing ring does not rotate during auto-focus, and yet it provides adequate focusing torque of the focusing ring during manual focusing of the lens. The lens materials used in this lens are lead and arsenic free ecological glass.