Review: The SIGMA 20mmf1.8 EX DG, a lens I loved


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marcwang

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Jan 9, 2003
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#1
Just a short tribute to the lens that I love so dearly, despite being a non-nikkor, its performance deserves a close look by many who wants a wide angle, but cannot afford the Nikkor 12-24mm or Sigma 12-24mm.

What I liked
- Its decently priced
- Very sharp lens from f4 up, and by f10, its razor
- decent at f1.8, no vignetting on a APS size dslr.
- Not too heavy, especially for a f1.8
- Very very fast aperture
- Close focusing (20cm !), interesting shots can be captured. Very important for a wide angle to focus close, since the objects seem so far away.
- warm colours
- nice bokeh
- Nice focus ring

What can be better
- Sigma EX lenses have this rubber finish that just dont withstand any abuse
- Flare is a problem
- 82mm filter size
- focusing is noisy and slow ( although not an issue with Wide angles)

Let the pictures speak for themselves.


I like the colours, and the sharpness is incredible. Shot @ f10


Low light is its forte @f2.8 1/20s


Close focusing (just 3 cm from front element) and the bokeh is good. @f2.2


Again... close focusing and bokeh @f2 1/15s

I'm in love with this lens, completely. If u intend to purchase a 19-35 from Tamron or whatever, simply give it a miss. If u want a Nikkor 20mm or 18-35, think really hard.

Just a tribute to this lens. A wonderful tool for street, low light and landscape photography.
 

XXX Boy

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Jan 11, 2004
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#2
marcwang said:
Just a tribute to this lens. A wonderful tool for street, low light and landscape photography.
For street photography, I would prefer a 50mm lens. 20mm is too wide for street photography.
 

Clown

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Mar 24, 2003
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#3
Close focusing (just 3 cm from front element) and the bokeh is good. @f2.2
using any attachments? min distance 20cm leh..
 

Feb 3, 2002
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#4
XXX Boy said:
For street photography, I would prefer a 50mm lens. 20mm is too wide for street photography.
Well, that depends. For a DSLR (1.6x), a 20mm is sometimes more preferable.
 

2100

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Mar 3, 2004
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#6
Bro, how much is this?
 

behyx

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Jun 15, 2002
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#9
bro i don't get it..

"Close focusing (just 3 cm from front element) and the bokeh is good. @f2.2"

but how did u do that since u say the minimum focusing dist is 20cm? :thinking:
 

Jayson

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May 21, 2004
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#10
Guys when they quote close focusing of 20 cm, it's a measurement from the flim plane (Ie almost the back of the camera). However 20cm - thickness of camera and the length of the lense gives you about 3cm from the front element

hope this helps
 

deadpixel

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Apr 14, 2004
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#11
behyx said:
bro i don't get it..

"Close focusing (just 3 cm from front element) and the bokeh is good. @f2.2"

but how did u do that since u say the minimum focusing dist is 20cm? :thinking:

It's quite possible.

The min focusing dist of 20cm refers to the subject to the focusing plane which is about 1/2 inch behind the lens. So, if you add 1.2 inch (3cm) to the length of the lens of 3.4 inches and the the 1/2 inch to the focusing plane and the fact that his point of focus is a few inches (maybe about 3) behind the closest point , you'll come close to the 20 cm (7.9 inches) min focusing dist.

I forgot to mention that I've got this lens too and really love it. Very, very, very low distortion and fantastic for doing some really fun closeup portraits.
 

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