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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 10 Mar 2010 (Wednesday) 23:11
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Sigma 30mm F1.4 or Canon 28mm F1.8

 
Mundty
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Mar 11, 2010 09:49 |  #16

RPCrowe wrote in post #9774212 (external link)
I often say that Ken Rockwell is a great _____ but, I seldom use the word "great" alone when describing him.

Have to agree, Ken Rockwell is a skilled photographer. But he is far from being the king. I don't know if anyone could really be considered the king... I've seen photos from people here that impressed me more than Mr. Rockwell.


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shooter ­ mcgavin
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Mar 11, 2010 09:56 |  #17

I have owned both and used each pretty extensively. I had to sell each for different reasons, but when thinking about which one to buy again, I'm definitely leaning toward the sigma. Maybe my 28mm was a bad copy, but wide-open, it was pretty soft with low contrast. The sigma looked better at f/1.4 than the canon at f/2...that being said, the jump from f/1.4 to f/1.8 isn't a huge deal to me, as long as I'm able to shoot wide-open confidently, but the sigma just performed better at wider apertures.

If someone has a different experience with the Canon, let me know, because I really liked the idea of working with a 28 and 85 pair...they just feel right together.




  
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irrelevant
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Mar 11, 2010 10:09 |  #18

another comparison:
http://www.focalplane.​net/canon28sigma30/ (external link)


I don't trust Rockwell's judgement. Seems very biased




  
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k_wakasugi
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Mar 11, 2010 10:12 |  #19

realmike15 wrote in post #9774270 (external link)
Have to agree, Ken Rockwell is a skilled photographer. But he is far from being the king. I don't know if anyone could really be considered the king... I've seen photos from people here that impressed me more than Mr. Rockwell.

lol, they were being facetious. Ken Rockwell is a tool.


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10megapixel
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Mar 11, 2010 10:16 |  #20

k_wakasugi wrote in post #9774459 (external link)
lol, they were being facetious. Ken Rockwell is a tool.

Thank you for picking up on that ;) :lol:



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rogazilla
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Mar 11, 2010 10:21 |  #21

http://blog.bahneman.c​om …?story=Ken_Rock​well_Facts (external link)


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Mike
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Mar 11, 2010 10:50 |  #22

Do we have to turn this into a Ken Rockwell bashing thread? I don't much care for him but it doesn't help the OP much.

I have the Sigma lens and love it. It is a fantastic fast lens, I love the colours and sharpness it gives and even works on full frame, albeit with heavy vignetting. I can't speak for the canon lens as I have never used it.


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k_wakasugi
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Mar 11, 2010 11:01 |  #23

What might be helpful to the OP is checking out the links at the bottom of this page under "Similar Threads", or running a quick little search on the topic as it's been discussed so many times before. I don't mean this as a "just go search" lecture, I'm just pointing out that there's plenty of info to be found outside of this thread as well ;)

My 2 cents would be that I enjoyed the sigma very much when I used it, even shooting on a 1.3x crop body. The vignetting doesn't get THAT bad until about f/5.6-8ish. The build was solid, and i'm definitely picking one up again once my t2i comes in.


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scuzy
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Mar 11, 2010 11:13 |  #24

Thanks all for the great info. I don't think i will ever get into FF yet so i might just plunge into the sigma 30mm after looking at all the various pictures in the archive.




  
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Mundty
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Mar 11, 2010 12:00 |  #25

k_wakasugi wrote in post #9774459 (external link)
lol, they were being facetious. Ken Rockwell is a tool.

Hah, well it went right over my head


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dmo580
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Mar 11, 2010 12:27 |  #26

10megapixel wrote in post #9772694 (external link)
Well, the great Ken Rockwell says "If you shoot Canon, forget this Sigma and get the superior Canon 28 1.8 for less money (external link)". So there you go...the king has spoken :lol:


I think it goes the other way now. The Sigma is cheaper with Canon's price increases last time I checked. I think Ken brings up some good poitns about the Sigma from what I remember. Good bokeh, bad AF. Bad AF can be documented on these forums and other review sites as this is typical of Sigma. He's just a tool when he jumps to a conclusion and tells you lens A > lens B for _______ reason and then dismisses the competition even though it could be a tough choice (like when he picks the 17-85 or 18-55 over the 17-55 simply because he likes reach or the 18-55 is 1/10th the price... while those may be reasons for some, it seems like he far overlooks the awesomeness of the 17-55 2.8 )

Honestly, you can't go wrong with either lens.


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sonnyc
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Mar 11, 2010 13:04 |  #27

What about the Sigma 28 f1.8 II ?


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tkbslc
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Mar 11, 2010 13:22 |  #28

Canon just needs a good , reasonably priced EF-S 31mm f1.8 to end all of this madness.


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hyt
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Mar 12, 2010 15:18 as a reply to  @ tkbslc's post |  #29

Went through the same decision process late last year, and bought both new at the same time in order to compare them. The Sigma was very good but quite heavy and slower focusing. I was lucky in that my copy focused properly out of the box, since the 50/1.4 HSM I had purchased before didn't do so well on my 5D. The Canon was lighter and had a closer minimum focusing distance. It also guaranteed compatibility with not only future EOS bodies but also full frame.

What it came down to was image quality. Out of the box, the Sigma was significantly sharper wide open than the Canon. On a hunch, I sent the Canon to Irvine for a checkup. It came back with "electrical adjustments performed" and "resolution adjusted to factory standards" (per the service statement). A re-test showed that the Canon had improved dramatically and was actually sharp wide open, albeit with some halation that was easily processed out (and gone by f/2.2).

I kept the Canon and sold the Sigma, and bought a second copy of the Canon 28/1.8. This one was also a disaster especially wide open. It took two trips to Canon USA before it could match the performance of my first 28/1.8 at equal apertures.

I have to wonder just how many reports of the Canon 28/1.8 being a "bad" lens are because so many samples are out of spec right off the production line. I'm 0/2 with both my copies needing a trip (one of them, two trips) to get them fixed. Both were brand new Canon USA stock.

On the bright side, I'm happy with both of them now. I used to shoot Leica M and APO/ASPH lenses on film so I know sharp when I see it.




  
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YankeeHotelFoxtrot
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Mar 12, 2010 15:43 as a reply to  @ hyt's post |  #30

Hi hyt,

Do you have any samples showing the 28/1.8 post-tuneup? If the Canon is as sharp at 1.8 as the Sigma is at 1.4, I think that I can deal with the 2/3 stop disadvantage of the Canon for the improvement in AF. Do you have any showing comparisons of the Canon before and after calibration, or compared to the Sigma after calibration?




  
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Sigma 30mm F1.4 or Canon 28mm F1.8
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