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Sigma Wide Angle 24mm f/1.8 EX Aspherical DG DF Macro Autofocus Lens for Pentax AF USA

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This 24mm lens has a fast f/1.8 maximum aperture with macro focusing capability (minimum focusing distance is 7.1" for a reproduction ratio of 1:2.7). The 9-bladed aperture diaphragm obtains beautiful, circular out of focus characteristics. It incorporates a floating focus system and uses two aspherical elements for minimized distortion, spherical aberration and astigmatism. The lens front does not rotate during focusing, thus allowing the use of a "perfect hood" and the easy polarizing filters. Optical construction was created to minimize light falloff (darkening of the image corners) at maximum aperture-a big benefit particularly for digital cameras. Materials used in this lens are lead and arsenic free ecological glass.

Performance
Focal Length 24 mm
Aperture Maximum: f/1.8
Minimum: f/22
Camera Mount Type Pentax K
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Pentax Digital (APS-C)
Angle of View 84.1°
Minimum Focus Distance 7.1" (18.03 cm)
Magnification 0.37x
Maximum Reproduction Ratio 1:2.7
Groups/Elements 9/10
Diaphragm Blades 9
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Physical
Filter Thread 77 mm
Dimensions (DxL) Approx. 3.3 x 3.1" (8.38 x 7.87 cm)
Weight 1.07 lb (485 g)

REVIEW SNAPSHOT®

by PowerReviews
Sigma W/A 24mm f/1.8 EX Aspherical DG DF Macro AF Lens
 
4.3

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

REVIEWS

Reviewed by 3 customers

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(1 of 1 customers found this review helpful)

 
4.0

A good addition

By Amy, the Photog and mom to 3.

from Oklahoma City

About Me Semi-pro Photographer

Verified Buyer

Pros

  • Consistent Output
  • Easily Interchangeable
  • Nice Bokeh
  • Rugged
  • Strong Construction

Cons

  • Color bleeding
  • Slow Focus

Best Uses

  • Indoors/Low Light
  • Landscape/Scenery
  • Macro Photography
  • Smaller spaces

Comments about Sigma W/A 24mm f/1.8 EX Aspherical DG DF Macro AF Lens:

I have a 50mm 1.4 that I love, but it's a little tight in small rooms and I also wanted a Macro. This lens is great and does what I needed it for. In a wide open shot, it has some color bleeding on the edges which bothers me, but I can live with it. Check the Flickr group for this lens if you'd like to see good images that have been taken with it. I found that helpful.

Comment on this review

 
4.0

Not a bad lens

By puffout

from NY<NY

About Me Semi-pro Photographer

Verified Buyer

Pros

    Cons

    • Slow Focus

    Best Uses

    • Indoors/Low Light
    • Landscape/Scenery

    Comments about Sigma W/A 24mm f/1.8 EX Aspherical DG DF Macro AF Lens:

    The Sigma 24mm f1.8 is not too shabby.
    Focus is a little slow, wide open the images are acceptable, stopped down nice and sharp. But why buy this lens to shoot at f8?
    I don't think the lens is particularly big or heavy, compared to pro lenses.

    Comment on this review

    (2 of 2 customers found this review helpful)

     
    5.0

    Very sharp, good construction

    By Masabu

    from Arlington, VA

    About Me Hobbyist/Enthusiast

    Pros

    • Consistent Output
    • Rugged
    • Sharp Focus
    • Strong Construction

    Cons

    • Heavy

    Best Uses

    • General Use
    • Landscape Photography
    • Night Photography

    Comments about Sigma W/A 24mm f/1.8 EX Aspherical DG DF Macro AF Lens:

    I had this before going to my Alaska trip, and really loved it. Ever since then, it is one of my favorite lens.

    It is very fast, great for low light, and very sharp when shot around f5.6. Aperture blade is made of 9 blades and shows very beautiful bokes.

    One of my favorite feature is it has manual mode -- when set, it gives nice Torque.

    Downside is it is very heavy and huge (77mm filter size), a typical downside of good quality retro focus wide lens for SLR.

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    What's in the Box

    Sigma Wide Angle 24mm f/1.8 EX Aspherical DG DF Macro Autofocus Lens for Pentax AF
    • Front & Rear Lens Caps
    • Hood
    • Case
    • 1-Year Worldwide Warranty + 3-Year Extended USA Warranty
     
     
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