Filter Size: 82mm From 24mm super wide angle to 70mm medium telephoto- this lens provides ... more
a large F2.8 aperture at all focal lengths. This lens incorporates Super Multi Layer Coating to reduce the influence of harmful light caused by reflections from ...
Compact large aperture standard zoom lens equipped with HSM for the latest digital SLR ... more
cameras. This large aperture standard zoom lens covers focal lengths from 24mm. The latest optical design provides a compact construction and is ideal for general photography. ELD (Extraordinary Low Dispersion) glass- two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction of all types of aberrations. This lens incorporates HSM (Hyper Sonic Motor)- ensuring a quiet and high speed AF as well as full time manual focus capability. It has a minimum focusing distance of 38cm/15in and a maximum magnification ratio of 1:5.3. The rounded 9 blades diaphragm creates an attractive blur to the out of focus areas.
Large aperture standard zoom lens provides superior performance both for Digital SLR ... more
Cameras and 35mm Film SLR Cameras. To achieve an F2.8 aperture at all focal lengths- it employs three aspherical Lens to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation- to assure high image quality. Optimized for digital SLR cameras It incorporates \Super Multi Layer Coating\ to reduce the influence of harmful light caused by reflections from the digital image sensor. Excellent correction of aberrations Two SLD elements- one Glass Mold Aspherical plus two Hybrid Aspherical lenses provide excellent correction of various aberrations and a high level of optical performance. Minimum focusing distance of 40cm (15.7 inches) The lens has a minimum focusing distance of 40cm (15.7 inches) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.8. DF (Dual Focus) System This lens incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during autofocusing- and yet provides a large focus ring for easy manual focusing. Petal Type Hood Since the front of the lens does not rotate- a Petal-type hood and circular polarizing filters can be easily used.
Compact large aperture standard zoom lens equipped with HSM for the latest digital SLR ... more
cameras. This large aperture standard zoom lens covers focal lengths from 24mm. The latest optical design provides a compact construction and is ideal for general photography. ELD (Extraordinary Low Dispersion) glass- two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction of all types of aberrations. This lens incorporates HSM (Hyper Sonic Motor)- ensuring a quiet and high speed AF as well as full time manual focus capability. It has a minimum focusing distance of 38cm/15in and a maximum magnification ratio of 1:5.3. The rounded 9 blades diaphragm creates an attractive blur to the out of focus areas.
Compact large aperture standard zoom lens equipped with HSM for the latest digital SLR ... more
cameras. This large aperture standard zoom lens covers focal lengths from 24mm. The latest optical design provides a compact construction and is ideal for general photography. ELD (Extraordinary Low Dispersion) glass- two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction of all types of aberrations. This lens incorporates HSM (Hyper Sonic Motor)- ensuring a quiet and high speed AF as well as full time manual focus capability. It has a minimum focusing distance of 38cm/15in and a maximum magnification ratio of 1:5.3. The rounded 9 blades diaphragm creates an attractive blur to the out of focus areas.
Advantages: Build quality. Finish. Range. Fast maximum aperture. Disadvantages: Image quality not as good as expected. Chromatic Aberration.
removed whenever you choose to use the lens hand-held.
Being an EXDG lens, it is suitable for use on either FF (Full-Frame) or APS-C cropped sensor cameras when it effectively behaves like a 105-300mmf/2.8 (on Nikon APS-C), 112-320mmf/2.8 (on Canon APS-C) or 119-340mmf/2.8 on Sigma DSLR cameras. These make interesting options on the APS-C size sensor cameras and it can be assumed the camera has a completely different set of values when used with such cameras to those when used on full-frame. Interesting?
The fast f/2.8 maximum aperture provides great fun for shallow DOF (depth-of-field) shots where particularly at the 200mm end of the zoom, depth-of-field is excitingly shallow. Whilst the lens is referred to as 'macro' within it's descriptive title, the term is used somewhat loosely. True macro lenses provide genuine 1 to 1 life ...
Advantages: Optical quality. Build quality. Price. Disadvantages: Could come free with Cornflakes?
-Thirds' mount, used primarily by Olympus. However, the effective doubling of focal length makes it an effective 300mmf/2.8MACRO. In my opinion, this specification is more akin to a 'sports' or 'wildlife' application but hey, what do I know?
As with all the SigmaEX lenses, build quality and finish are excellent. The now familiar 'smooth' black crinkle finish does seem to attract dust but fortunately, is very easy to wipe over and clean. It appears so far, to be quite hard wearing, so no worries there then. The lens 'is' quite heavy but at the same time, well balanced. I prefer to use my lens on a good tripod whenever possible, the included rotating tripod mounting collar being a delight to use. However, the lens handles well 'hand-held' once the aforementioned tripod collar has been removed. This is very simple to do and takes literally ...
Advantages: value for money (compared to pro level), build quality, Disadvantages: makes you think your a pro, but by its nature, proves you otherwise.
quality macro lens. It's a bit slow on auto focus, but if you shooting macro the chances are that the subject is pretty still. I use mine most days.
Tech Spec:
Focal length - 105mm
Weight - about 500g
Magnification - 1:1
f-stop range - 2.8-32
Filter size 58mm
Mounts: SIGMA, CANON, NIKON, SONY, PENTAX
Final point: Read about macro photography before buying a lens like this. The technique is NOT the same as 'point and shoot'. ...
Product Information for "Sigma 24-70mm f/2.8 DG EX Macro" »
Product details
Long Name
24-70mm f/2.8 DG EX Macro, 24-70mm f/2.8 EX DG Macro
Lens System Mounting / Mounting Type
Sigma, Canon
Lens System / Type
Macro lens
Manufacturer
Sigma
Manufacturer's product description
Filter Size: 82mm. From 24mm super wide angle to 70mm medium telephoto- this 24-70 f2.8 lens provides a large F2.8 aperture at all focal lengths. This lens incorporates Super Multi Layer Coating to reduce the influence of harmful light caused by reflections from the digital image sensor. Two SLD elements- one Glass Mold Aspherical plus two Hybrid Aspherical lenses provide excellent correction of various aberrations and a high level of optical performance. The lens has a minimum focusing distance of 40cm (15.7 inches) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.8. It also incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during autofocusing- and yet provides a large focus ring for easy manual focusing. Since the front of the lens does not rotate- a Petal-type hood and circular polarizing filters can be easily used.
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