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Thread started 09 Jan 2012 (Monday) 12:00
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10-20mm vs 4.5mm

 
janok
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Jan 09, 2012 12:00 |  #1

Two pictures from the harbor area in Oslo (Aker Brygge). One is taken with a Sigma 10-20mm and the other with the Sigma 4.5mm.
The fish-eye can create some cool effects, but there are several trade-offs. The 4.5mm use just 1/3 of the CMOS real-estate and it there is somewhat brutal process to unfold the picture from a circle to a square format. This could reduce the sharpness significantly. Below you see the results. Let me know what you think.

IMAGE: http://farm8.staticflickr.com/7153/6667958849_7c66d13a78_b.jpg
[IMAGE'S LINK: http://www.flickr.com/​photos/jankiese/666795​8849/] (external link)
Aker Brygge - Sigma 10-20mm (external link) by janokiese (external link), on Flickr

IMAGE: http://farm8.staticflickr.com/7028/6667959963_404d6a8df8_b.jpg
[IMAGE'S LINK: http://www.flickr.com/​photos/jankiese/666795​9963/] (external link)
Aker Brygge Sigma 4.5mm (external link) by janokiese (external link), on Flickr

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DaveKosiba
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Jan 09, 2012 12:03 |  #2

I like the top picture taken with the Sigma 10-20, not crazy about all the distortion caused by the 4.5mm fisheye.


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Snydremark
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Jan 09, 2012 12:09 |  #3

I think the distortion in the 4.5 shot makes for a more interesting composition and result. The 10-20 shot just looks lopsided, to me.


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ThreeD23
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Jan 09, 2012 12:11 |  #4

the second one is a more interesting composition. good job!


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Chet
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Jan 09, 2012 12:13 |  #5

I like the 10-20. The loss of detail and as you mention loss of sharpness is to noticeable with the 4.5.


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whoty
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Jan 09, 2012 14:01 |  #6

The 10-20 shot is more cleaner and appealing to me. But,the 4.5 has a cool effect. I like them both,but if I had to print one,it's the 10-20 shot all the way.


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J-Blake
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Jan 09, 2012 14:08 |  #7

Top one for sure!


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Gary ­ McDuffie
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Jan 09, 2012 21:36 |  #8

Sorry. I come down on the side saying the fisheye loses something. I compared the two, and there are things I like about it, but the odd "distortion" just makes it look "not right". It almost feels painful to look at, because it doesn't look natural. What a beautiful area you have to shoot in!


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tmcman
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Jan 10, 2012 00:23 |  #9

The 4.5 really amps the foreground.
Could be an awesome effect with the right foreground.


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Old ­ Baldy
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Jan 10, 2012 18:01 as a reply to tmcman's post |  #10

Love the top one. Don't like the distortion of the 4.5


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Celestron
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Jan 10, 2012 22:03 |  #11

Gotta agree here also with #1 . FEs' do have a good purpose for the right photograph but doesn't work with this one for me . MHO . I think part of it to me is with the FE i loose the ability to see that it's actually an HDR image .




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dandan1
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Jan 11, 2012 02:15 |  #12

I love the 4.5mm and how creative the photographer can get with it. Nice pictures.


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Chopper ­ Al
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Jan 11, 2012 22:21 |  #13

Ditto for the first image. Actually I like both, but the first one pops more for me.

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Richard ­ Fleming
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Jan 12, 2012 23:52 |  #14

really like the top one but like mentioned the 4.5mm is really cool


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10-20mm vs 4.5mm
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