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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 07 Sep 2010 (Tuesday) 02:15
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Sigma 30mm 1.4 Vs 50mm 1.4

 
kylyo
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Sep 07, 2010 13:19 as a reply to  @ post 10865684 |  #16

Without a doubt the Sigma 30. I had both, still have the 30. The Sigma 30 is plenty sharp and the focal length is perfect for a crop, especially indoors! Get it!


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martin2day
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Sep 07, 2010 13:37 |  #17

Sigma 30mm f/1.4 all the way




  
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mattia
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Sep 07, 2010 14:16 |  #18

Sigma 1.4 is a much nicer piece of glass than the Canon 1.4, in terms of bokeh/build quality. Some have had QC issues in terms of focus accuracy, possibly due to focus shift, and it's not the fastest USM AF lens, but it's got a lot of glass to move around in there. It easily holds its own in the company of Canon L primes, IMO.


5DII | 300D | 30D IR | 17-40L | 24-105L IS | 70-200/2.8L IS | 100-400L IS | 15 FE | 35L | 50/1.8 mk I | 135L | Sigmalux 50/1.4 | Sigma 105/F2.8 Macro | C/Y Planar 50/1.4 | C/Y Distagon 35/2.8

  
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hisownhero
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Sep 07, 2010 14:28 |  #19

The Sigma 30mm f/1.4 seems more appealing to me than the Canon 50mm f/1.4 on crop.

But it's whatever you like focal length wise. Set your 24-70 to either length and choose that way.


Canon 5D - Canon 20-35mm f/3.5-4.5 USM - Canon 50mm f/1.4 USM

  
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hennie
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Sep 07, 2010 16:22 |  #20

Got both and like both (on 40D).
Apart from the obvious difference in FL the colours of the Sigma appear to be a little warmer, especially in low-light.
I get sharper pictures with the 30 handheld, that might have to do with the shorter FL (less motion blur).
My 30/1.4 gets more use than my 50/1.4 because I like it more as a walk-around lens, while the 50 gets more use as portrait lens.




  
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phongho@mac.com
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Sep 07, 2010 18:52 |  #21

It seems as though there is much more good feedback for the sigma 30mm.. I honestly think it's a better move on a crop body. I just wasn't sure if a non canon lens could be so great and apparently it is!

I think I'll be picking up the lens tomorrow, thanks all.




  
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amfoto1
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Sep 07, 2010 19:12 |  #22

On a crop sensor camera, one is a normal lens, the other is a short telephoto. They are hardly interchangeable, no matter how they compare in other respects.


Alan Myers (external link) "Walk softly and carry a big lens."
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tkbslc
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Sep 07, 2010 19:57 |  #23

phongho@mac.com wrote in post #10867567 (external link)
It seems as though there is much more good feedback for the sigma 30mm.. I honestly think it's a better move on a crop body. I just wasn't sure if a non canon lens could be so great and apparently it is!

I think I'll be picking up the lens tomorrow, thanks all.

If you wanted to stay Canon, a more fair comparison for the Sigma 30mm would be the Canon 28mm f1.8 or 35mm f2. Both are pretty close matches, but I would still (and did) go with the Sigma.


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cptrios
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Sep 07, 2010 20:36 |  #24

tkbslc wrote in post #10867933 (external link)
If you wanted to stay Canon, a more fair comparison for the Sigma 30mm would be the Canon 28mm f1.8 or 35mm f2. Both are pretty close matches, but I would still (and did) go with the Sigma.

Yeah, for me half the point of a fast prime is the narrow DoF capability - an ability that really requires nice bokeh to make it worthwhile. The Canon 28/1.8 and 35/2, while nicely sharp, have pretty nasty bokeh. So go with the Sigma 30!


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Mark-B
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Sep 07, 2010 22:54 |  #25

Both lenses are good, but the Sigma is a more solid lens all the way around (it also comes with a quality hood). I find the images from the 50mm a little more pleasing, and it is better suited for my main purpose - flowers and head & shoulders type portraits. Both lenses are similar enough in quality and sharpness that you could really make this decision based solely on the focal length that better suits your needs.


Here are the most similar samples I can come up with:

30mm @ f/1.4

IMAGE: http://www.msbphoto.com/img/s4/v3/p435596663-5.jpg

50mm @ f/1.8
IMAGE: http://www.msbphoto.com/img/s2/v1/p435167024-5.jpg



30mm @ f/1.4
IMAGE: http://www.msbphoto.com/img/s2/v1/p260710899-5.jpg

50mm @ f/1.4
IMAGE: http://www.msbphoto.com/img/s2/v1/p106108327-5.jpg



30mm @ f/1.8
IMAGE: http://www.msbphoto.com/img/s1/v0/p176747762-5.jpg

50mm @ f/2.2
IMAGE: http://www.msbphoto.com/img/s1/v0/p56567202-5.jpg



30mm @ f/5
IMAGE: http://www.msbphoto.com/img/s1/v0/p785463009-5.jpg

50mm @ f/5
IMAGE: http://www.msbphoto.com/img/s1/v0/p539027474-5.jpg

Mark-B
msbphoto.comexternal link

  
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Deep ­ Pocket
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Sep 07, 2010 23:09 |  #26
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I just recently traded my 50mm for the 30mm to recover a small amount of cash for some pocket money and to get a shorter indoor length for my XSI. Here are my verdicts:

- IQ is slighly better on the 50mm, but you really have to pixel peep to see that. I enjoy the creamy bokeh on the 50mm just a bit more, but then both do very well here.
- Motors are similar to me. AF isn't "bad", but I don't find it reliable for fast-moving subjects, and it likes to miss quite often in low-light.
- Very good build quality on both, with the 50 being slightly better. The 30mm is more compact, though, yet I found my 50mm cooler-looking (personal opinion)
- Sharpness wide open.. think that may matter upon different copies, but I found my 50mm better at f/1.4 and around that aperture.

The 50mm is the better lens, for a very slight price increase and it's a bit more bulky, although I opted for the 30mm because I found that it was a more useable length when indoors on my 1.6x crop.


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Sigma 30 f/1.4, EF-S 55-250mm f/4-5.6 IS, 18-55 Kit Lens

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phongho@mac.com
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Sep 07, 2010 23:13 |  #27

Hm thanks for the insight Deep, and Mark thanks for your pictures. The bokeh looks awesome on the 30mm.




  
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DStanic
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Sep 08, 2010 06:38 |  #28

Deep Pocket wrote in post #10869212 (external link)
I just recently traded my 50mm for the 30mm to recover a small amount of cash for some pocket money and to get a shorter indoor length for my XSI. Here are my verdicts:

- IQ is slighly better on the 50mm, but you really have to pixel peep to see that. I enjoy the creamy bokeh on the 50mm just a bit more, but then both do very well here.
- Motors are similar to me. AF isn't "bad", but I don't find it reliable for fast-moving subjects, and it likes to miss quite often in low-light.
- Very good build quality on both, with the 50 being slightly better. The 30mm is more compact, though, yet I found my 50mm cooler-looking (personal opinion)
- Sharpness wide open.. think that may matter upon different copies, but I found my 50mm better at f/1.4 and around that aperture.

The 50mm is the better lens, for a very slight price increase and it's a bit more bulky, although I opted for the 30mm because I found that it was a more useable length when indoors on my 1.6x crop.

I went through some of your posts just to make sure and it does appear you are talking about the SIGMA 50mm, because it is bulkier, heavier than the Canon and has creamier bokeh.


The Sigma 30mm defiantly appears to be a superior lens than the Canon 50mm 1.4, it costs slighly more as well.

Funny, I mentioned to my friend who works at a camera store that I was selling my 30mm and wanting to get a Sigma 50 and what kind of price he could get for me. He said the Canon is sharper (MTF graphs don't lie :rolleyes:) and he has a Canon 50 with HELP (extended warranty) he would trade for my Sigma 30. LOL. I'm likely selling the Sigma back to a friend I bought it from cause he misses it so, no deal for him!


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Tamron 28-75 2.8, Tamron 17-35, Sigma 50mm 1.4, Canon 85mm 1.8

  
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cptrios
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Sep 08, 2010 13:34 |  #29

DStanic wrote in post #10870584 (external link)
I went through some of your posts just to make sure and it does appear you are talking about the SIGMA 50mm, because it is bulkier, heavier than the Canon and has creamier bokeh.


The Sigma 30mm defiantly appears to be a superior lens than the Canon 50mm 1.4, it costs slighly more as well.

Funny, I mentioned to my friend who works at a camera store that I was selling my 30mm and wanting to get a Sigma 50 and what kind of price he could get for me. He said the Canon is sharper (MTF graphs don't lie :rolleyes:) and he has a Canon 50 with HELP (extended warranty) he would trade for my Sigma 30. LOL. I'm likely selling the Sigma back to a friend I bought it from cause he misses it so, no deal for him!

He was probably speaking in a physical sense, i.e. the edges of the mount on the Canon are sharpened a bit more than the Sigma's. Duh!


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Varago
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Sep 08, 2010 14:00 as a reply to  @ cptrios's post |  #30

You cant compare MTF's from different manu.

If you want the lens for portraits then I like the 50 1.4. If not portraits then the 30 will make a better general porpose lens. Sigma is the best 50 1.4 for portraits the bokeh is VERY good.

If you get a Sigma be ready to MA, All of my sigmas require MA even after going for calibration.

Dave


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Canon RF 24-105 f4 IS L, RF 24-240, RF 35 1.8 macro, EF 70-200 f4 IS L, EF 16-35 F4 IS L, 50 1.8 stm, 270EX II, 320EX, 430EX II
Sigma 1.4x tc1401
Tamron 100-400

  
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Sigma 30mm 1.4 Vs 50mm 1.4
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