Sigma 105mm f/2.8 EX Macro Autofocus Lens for Olympus Digital Camera

Sigma Telephoto 105mm f/2.8 EX DG Macro Autofocus Lens for Olympus Digital Cameras (Four Thirds System)

Sigma Telephoto 105mm f/2.8 EX DG Macro Autofocus Lens for Olympus Digital Cameras (Four Thirds System)

B&H # SI10528MDGOA MFR # 257107
No Longer Available

Sigma 257107 overview

  • 1Description

The Sigma 105mm f/2.8 EX DG macro lens delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to life-size (1:1) macro, as close as 12.2" without accessories. Its non-rotating front lens group makes it easier to work with polarizing filters. A focus limiter helps divide the broad focus range into more manageable chunks.

The "focus-free" mechanical design allows the lens to autofocus without any interference from the manual focus ring, making it easy to hold the lens without affecting the speed or normal operation of the autofocus function. Rugged mechanical construction also makes it durable enough for even the heaviest use required by professional photographers. An ideal lens for a wide variety of applications from nature photography to portraiture.

The improved DG lens design for this lens corrects for various aberrations. This macro lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras.

Close focus capability of 12.2"
Improved minimum aperture of f/45 provides incredible depth of field
Super Multi Layer (SML) coating reduces ghosting caused by reflections from the surface of digital image sensors
Dual Focus (DF) makes the lens easier to hand hold during AF
In the Box
Sigma Telephoto 105mm f/2.8 EX DG Macro Autofocus Lens for Olympus Digital Cameras (Four Thirds System)
  • Front & Rear Lens Caps
  • Lens Hood
  • Soft Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Sigma 257107 specs

    Performance
    Focal Length 105mm
    Aperture Maximum: f/2.8
    Minimum: f/22 - 45
    Camera Mount Type Four Thirds
    Format Compatibility Four Thirds
    Angle of View 23.3°
    Minimum Focus Distance 12.3" / 31.24 cm
    Magnification 1x
    Maximum Reproduction Ratio 1:1
    Optical Design 11 Elements in 10 Groups
    Diaphragm Blades 8
    Features
    Image Stabilization No
    Autofocus Yes
    Tripod Collar No
    Physical
    Filter Thread 58 mm
    Dimensions (DxL) 3.1 x 3.7" / 7.87 x 9.40 cm
    Weight 15.87 oz / 450 g

    Sigma 257107 reviews

    105mm f/2.8 EX Macro Autofocus Lens for Olympus Digital Camera is rated 4.4 out of 5 by 13.
    Rated 4 out of 5 by from Very sharp, slow to switch MF/AF I use this lens for insect photography on Olympus cameras. The lens is very sharp edge to edge, sharper than my 14-54 or 12-60 Zuiko zooms. The results can be outstanding. The lens does not need a lens cap, due to the deeply recessed front element. The working distance is perfect for insect photography: sufficient to avoid scaring the insects away, yet short enough that photography without tripod or flash is possible. The one drawback is that it is fairly slow to switch between MF and AF: you need to change a switch on the camera, a switch on the lens, and pull in/out the lens focusing ring.
    Date published: 2009-10-16
    Rated 4 out of 5 by from Good manual focus macro lens I bought this as a dedicated long focus macro lens for use handheld and on tripod. The sharpness is fine. I debated getting the 150 mm Sigma instead (I shoot dragonflies), but I'm glad I got the shorter 105. Telephoto macros are very touchy to focus, and I suspect the 150 wouldn't be handholdable, at least for me. Other reviews have mentioned problems with autofocusing, and I will say that the autofocus is not always fast or accurate. However, as a macro lens, I always focus manually, and the mechanical focus ring is a real pleasure next to the mushy focus by wire of most new lenses. Bottom line, works fine as a dedicated macro lens, which of course is what it is.
    Date published: 2011-01-09
    Rated 4 out of 5 by from A very good lens when used correctly I own the Olympus 50mm macro, and it is an excellent optic, but I wanted more reach for live macro work. I've waited patiently 5yrs for Oly to produce the 100mm macro and finally gave up and bought the Sigma. I've been pretty pleased with it. As most users report it is quite sharp with good chromatic correction. I've seen complaints about slow focus, but haven't found that to be the case. If the limit switch is understood and used properly the lens focuses very quickly at normal ranges. It's slower in the macro range of course because of the loooong extension. It's a well thought out system and I like it. The only real gripe I have is the matte finish, and that is to some degree personal. I'd prefer a satin finish. I would certainly recommend this lens to anyone needing a lightweight lens with decent reach and excellent performance.
    Date published: 2010-05-15
    Rated 5 out of 5 by from So far so good The lens does everything I need it to. My goal with this lens was to be able to take 1:1 macro pics of bugs at a better working distance. Switching from auto-focus to manual focus is a bit clumsy at first, there is a switch on the lens plus a barrel switch (like a shotgun) and I have to change setting in camera menu (Olympus E-600 mount)but after a while I got the hang of it. Auto-focus is a little jumpy in lower light but that might be my camera.Great macro lens for me.
    Date published: 2010-04-16
    Rated 5 out of 5 by from A nice sharp lens I got this to give me some distance from subjects in macroshots. AF is quick, focus is sharp. The 105mm focused atinfinity makes a nice portrait or scenery lens too. Expertise: Hobby enthusiast Problems Encountered: Pay attention to the Auto/Manual focus switch and ring.
    Date published: 2007-07-14
    Rated 4 out of 5 by from A Great Lens for the Money I spent a lot of time researching this purchae. I wanted a good, fixed focus telephoto lens for my Olympus E3. The reviews on the Sigma lens were all very high. In use it produces very sharp and color true images. The relatively fast 2.8 aperture is a benefit. After almost a month with the lens I am very pleased with the performance. I find only one drawback and that is a slowness of focusing when going from telephoto to macro. The lens hunts too long to find the focus point. The lens also has settings (switches, really) for auto and manual focus in two places on the lens. And you must use them to coordinate with your cameras settings. The lens also has two setting for focus - full and limited. This is supposed to help the auto-focus by limiting the focus parameters to a close-up range and a normal range. Not sure it works all that well. You need to get used to these settings to get the best out of the lens. Having said that, the performance quality makes up for the single drawback. Not to mention the price.
    Date published: 2009-03-23
    Rated 4 out of 5 by from Sharp and good built but lousy controls Nice focal length, not heavy. Well damped focus ring. Auto/Manual Focus switch pointless.
    Date published: 2008-06-02
    Rated 5 out of 5 by from I love this lens ! I have really enjoyed this lens. It's sharp, easy to use, and affordable. I've used it mostly in its manual focus mode and stopped down to 11-22 and the images are needle sharp. It's a little soft on distant subjects, but that's not what I bought it for.
    Date published: 2009-04-27
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