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PostPosted: Sun Feb 10, 2008 5:51 am 
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Posts: 312
Location: Seattle (Home) ~ Taipei (Work)
Pros: fast maximum aperture of f/1.4, quick and silent focus thanks to HSM (similar to Canon's USM technology), lens includes hood and padded carry bag

Cons:

Notes: You'll notice that I haven't listed any "Cons" for this particular lens, although it should be noted that some have noticed a slight yellowish cast and some have mentioned a lack of sharpness wide open. I can't say that either of those problems have plagued me and I would buy this lens again especially when you consider it a cheap alternative to Canon's beloved 35mm f/1.4L. This Sigma will give you close to a 'normal' lens on a cropped body.

Image
30mm, 1/400th, f/9

Image
30mm, 1/30th, f/2.2

Image
30mm, 1/250th, f/1.4 Although photographically this image lacks a lot, it does show the remarkable control you have over the depth of field with fast aperture lens. See image below.

Image
30mm, 1/6th, f/9

Image
30mm, 1/20, f/1.4

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PostPosted: Tue Feb 12, 2008 2:52 am 
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Location: Melbourne Florida
good shots, I was looking for a 30 prime, and I think you just made my mind for me. good review

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PostPosted: Tue Feb 12, 2008 3:49 am 
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Location: Seattle (Home) ~ Taipei (Work)
backwindow wrote:
good shots, I was looking for a 30 prime, and I think you just made my mind for me. good review


Thanks, I'm sure you'll be very happy with it. One thing that I forgot to mention is that when you mount the lens and don't use the battery grip it makes for a relatively 'compact' dslr rig.

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PostPosted: Wed Feb 27, 2008 3:05 am 
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Location: West Virginia, USA
This diptych(both pictures) were shot at f/1.4.

Image

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PostPosted: Sat Mar 15, 2008 8:06 pm 
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Location: Germany
Steve, do you have large originals of those shots?
I'd love to have a peep at the pixel-level quality of this lens :wink:

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 Post subject:
PostPosted: Thu May 22, 2008 11:34 am 
Thomas wrote:
Steve, do you have large originals of those shots?
I'd love to have a peep at the pixel-level quality of this lens :wink:



....... I have this lens and find it very good in low light. The sharpness of said 30mm, for what I have used it for has been very good, but yet to do a full test. I am on location tomorrow, subject to weather, and I will get a chance to use the 30mm and a Sigma 300 mm 2.8.

If I get some good snaps I am quite happy for you to play with some images Thomas


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PostPosted: Wed Jun 25, 2008 8:58 pm 
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Location: UK
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1/250s
f/8
iso100
shutter priority to slow shutter speed and increase dof
John :D

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 Post subject: all at sea
PostPosted: Thu Aug 21, 2008 8:57 pm 
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Location: UK
hi everyone,
Image
regards John :D

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PostPosted: Thu Sep 25, 2008 1:15 pm 
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Joined: Tue Sep 18, 2007 11:52 pm
Posts: 34
Location: Exeter, UK
Just thought I would add a few shots taken with my 400d and sigma 30mm 1.4. with a snippet of EXIF Data underneath each one.

Julian


Image

Exposure: 0.006 sec (1/160)
Aperture: f/2
Focal Length: 30 mm
ISO Speed: 200
Exposure Bias: 2/3 EV



Image

Exposure: 0.008 sec (1/125)
Aperture: f/1.8
Focal Length: 30 mm
ISO Speed: 400
Exposure Bias: 2/3 EV



Image

Exposure: 0.004 sec (1/250)
Aperture: f/5
Focal Length: 30 mm
ISO Speed: 100
Exposure Bias: 1 EV
Shot as a RAW file and processed to hell and back in Photoshop CS2 and cropped



Image

Exposure: 1/3200 sec
Aperture: f/1.4
Focal Length: 30 mm
ISO Speed: 100
Exposure Bias: 2/3 EV



Image

Aperture: f/1.4
Focal Length: 30 mm
ISO Speed: 100
very very cropped!



Image

Exposure: 0.001 sec (1/2000)
Aperture: f/2.8
Focal Length: 30 mm
ISO Speed: 100
Exposure Bias: 1 EV



Image

Exposure: 1/3200 sec
Aperture: f/1.4
Focal Length: 30 mm
ISO Speed: 100
Exposure Bias: 2/3 EV




Image

Exposure: 0.002 sec (1/640)
Aperture: f/1.4
Focal Length: 30 mm
ISO Speed: 100
Exposure Bias: 1 EV
Cropped in




Image

Exposure: 0.003 sec (1/320)
Aperture: f/1.8
Focal Length: 30 mm
ISO Speed: 200
Exposure Bias: 2/3 EV



:D

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 Post subject:
PostPosted: Thu Sep 25, 2008 1:24 pm 
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Location: Exeter, UK
Forgot to mention that the shaded edges were added in within photoshop and were not present in the unprocessed originals.

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My kit: Canon 400d - Sigma 30mm 1.4 - Canon 50mm 1.4 - Canon efs-s 60mm 2.8 macro USM - Canon EF 70-300 F4-5.6 IS USM and a Canon 18-55mm


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 Post subject:
PostPosted: Thu Sep 25, 2008 8:56 pm 
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Joined: Sat Aug 23, 2008 9:02 pm
Posts: 718
Location: Copenhagen in Denmark.
Indeed interesting and creative subjects. Enjoyed watching.
One question - how is the autofocus on this lens? Macro, moving, low light etc.

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PostPosted: Thu Oct 02, 2008 4:33 pm 
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Posts: 34
Location: Exeter, UK
0eyvind wrote:
Indeed interesting and creative subjects. Enjoyed watching.
One question - how is the autofocus on this lens? Macro, moving, low light etc.

Thanks :)

how is the autofocus on this lens?
The autofocus is nice and fast and easy on the ear.

Macro
This is not a macro lens as it's a 30mm so min focal distance is 40cm so when your too close the focus will hunt around to find the focus point!

low light
Although this is a fast prime lens the focus can struggle in very low light situations.


etc.?
Overall this is a fantastic lens to play with, well suited for portrait work on a cropped body.
If you're into shallow depth of field or bokeh shots, then take this lens for a spin at f1.4, you wont be disappointed.

My personal advice though is if you're considering buying the sigma 30mm f1.4, try before you buy, as there are few people who have had poor quality versions! :!:


Julian

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 Post subject:
PostPosted: Sat Feb 07, 2009 2:41 am 
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Joined: Tue Sep 18, 2007 11:52 pm
Posts: 34
Location: Exeter, UK
Great for low light situations... like bars and clubs or urban night shots.

Image

Exposure: 0.077 sec (1/13)
Aperture: f/1.4
Focal Length: 30 mm
ISO Speed: 800
Exposure Bias: 1/3 EV
Flash: Flash did not fire



Image

Exposure: 0.02 sec (1/50)
Aperture: f/1.4
Focal Length: 30 mm
ISO Speed: 800
Exposure Bias: 1/3 EV
Flash: Flash did not fire

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My flickr page
My kit: Canon 400d - Sigma 30mm 1.4 - Canon 50mm 1.4 - Canon efs-s 60mm 2.8 macro USM - Canon EF 70-300 F4-5.6 IS USM and a Canon 18-55mm


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 Post subject:
PostPosted: Sun Mar 22, 2009 7:15 pm 
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Location: Brunei & Soon in Bristol UK
Photos are taken with my friend's Sigma 30 f/1.4 all shots taken at f/2.8

Image

Image

Image

Image

Image

Image

Image

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PostPosted: Wed Dec 30, 2009 11:21 pm 
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Posts: 812
Location: Boca Raton, FL, USA
Just noticed this forum page - I figured I'd post links to my photos from this lens. I keep a section of my online galleries divided up by camera and lens, with all the shots from that particular lens or body copied to a single folder, as well as the subject-related folders.

Here's a link to my Sigma 30mm F1.4 EX DC HSM gallery:

http://www.pbase.com/zackiedawg/sigma_30mm_f14

Mine's the Sony/Minolta A mount version, with no motor in the lens. All shots with either the DSLR-A300 or DSLR-A550. All EXIF intact under each photo.


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