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10-20mm vs 4.5mm

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Thread started 09 Jan 2012 (Monday) 12:00   
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janok
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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 10-20mmexternal link by janokieseexternal 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 4.5mmexternal link by janokieseexternal link, on Flickr

Post #1, Jan 09, 2012 12:00:32


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

Post #2, Jan 09, 2012 12:03:29


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Snydremark
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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.

Post #3, Jan 09, 2012 12:09:42


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ThreeD23
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the second one is a more interesting composition. good job!

Post #4, Jan 09, 2012 12:11:39


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

Post #5, Jan 09, 2012 12:13:49


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whoty
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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.

Post #6, Jan 09, 2012 14:01:04


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J-Blake
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Top one for sure!

Post #7, Jan 09, 2012 14:08:55


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Gary ­ McDuffie
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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!

Post #8, Jan 09, 2012 21:36:08


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

Post #9, Jan 10, 2012 00:23:02


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

Post #10, Jan 10, 2012 18:01:05 as a reply to tmcman's post 17 hours earlier.


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Celestron
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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 .

Post #11, Jan 10, 2012 22:03:11




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dandan1
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I love the 4.5mm and how creative the photographer can get with it. Nice pictures.

Post #12, Jan 11, 2012 02:15:00


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

Al

Post #13, Jan 11, 2012 22:21:25


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

Post #14, Jan 12, 2012 23:52:38


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