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Cameras, Lenses and Accessories: Discuss Sigma 70-300mm f/4-5.6 APO Macro DG (Canon AF)...Buying camera gear on a buget can sometimes be a worry and wanting to buy good equipment the first time ...
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Old 30-07-2008, 09:25   #1 (permalink)
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Sigma 70-300mm f/4-5.6 APO Macro DG (Canon AF)

Buying camera gear on a buget can sometimes be a worry and wanting to buy good equipment the first time round would be great thought.

I bought what i thought was a good lens but turned out to be the happy shopper type of all the lens's i have.

I got the Canon EF 75-300mm f4/5.6 USM MK3 and i was disapointed from the start, so much so i changed it twice as i thought their was something wrong with it. The specs on this lens is:

Lightweight lens ideal for sports, portraiture, animals, etc.
The telephoto effect can make the picture look compressed or have excellent background blur.
At the 300mm focal length, you can fill the frame with a postcard from 1.5 metres away.
Minimum Aperture: 32-45
Closest Focusing Distance: 1.5m
Diagonal Angle of View: 32 degrees - 11'-8 degrees
Dimensions (Max.Diameter x Length): 71mm x 122.1mm
Weight: 480g.

But to be honest this means nothing when the images are not in focus and slightly blurred, and the whole feel of it comes accross as cheap plastic.

Being totally gutting about laying out around 209.99 for this lens i took to looking for the next best lens.

I bought the Sigma 70-300mm f/4-5.6 APO Macro DG (Canon AF) and i was surprised at the difference straight away.

The mortorised zoom seemed to be more sturdy and felt very acute when focusing in on things, the quality of it was far better.

At a lower price of just 159.99 i was sold there and then, plus I wanted it for the macro side of it too. The spec are:

High performance lens optimized for use with digital SLR cameras
Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300 mm focal length.
It's the ideal lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range.
It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2.SLD (Special Low Dispersion) glass in this lens provides excellent correction of chromatic aberration.
Coating reduces Ghost and Flare
The multi-layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras and also
creates an optimum colour balance through the entire zoom range.
SLD (Special Low Dispersion) glass
SLD (Special Low Dispersion) glass is used in this lens for correction of chromatic aberration. This also corrects for fluctuation
of aberration due to focusing. High optical performance is demonstrated throughout the entire zoom range.
Macro shooting with maximum magnification 1:2
This lens is capable of macro photography with a 1:2 maximum close-up magnification at the 300mm focal length.
The minimum focusing distance is 1.5 m at all zoom settings.
It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2 and a minimum focusing distance of 95cm. Without changing the distance between camera and subject, you can change the shooting magnification.

Specifications:

Lens Construction: 14 Elements in 10 Groups
Angle of View 34.3degrees - 8.2degrees
Number of Diaphragm Blades: 9 Blades
Minimum Aperture: f/22
Minimum Focusing Distance: 150cm / 95cm(Macro mode)
Maximum Magnification: 1:4.1 / 1:2(Macro mode)
Filter Size: Diameter 58mm
Dimensions: Diameter 76.6mm x Length 122mm
Weight 545g

With this lens i have improved the quality of my photos and feel better in my self about the equipment i use.

The two example shots of this lens, one using the 300mm zoom and the other using 200 - 300 macro and great DOF are below.

Macro:

Zoom:

I hope this review helps someone not buy the wrong type of lens and make the mistake i did. Adee
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Old 30-07-2008, 10:44   #2 (permalink)
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Re: Sigma 70-300mm f/4-5.6 APO Macro DG (Canon AF)

Top write-up Adee You've actually given us two reviews in one. If you feel inclined it would be a great help to split this and give a review each for the Canon 75-300 and the Sigma 70-300 in the Equipment Reviews - a copy and paste job. Thanks.

PS I know what you mean about the Canon - a far better lens is the 70-300 IS and not much more money.
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