Canon versus Sigma

Discussion in 'Beyond the Basics' started by binglemybongle, Dec 10, 2005.

  1. binglemybongle

    binglemybongle TPF Noob!

    Joined:
    May 23, 2005
    Messages:
    156
    Likes Received:
    0
    Location:
    Manchester, UK
    Can anyone advise me on any real differences between a Canon and equivalant Sigma AutoFocus lens?

    I want to get a faster lens than the standard 28-90mm USM f4-5.6 but Canon originals seem too expensive.

    How much difference does the USM make? (Both power and noise level)

    How much difference is there optically?

    How many people use Sigma and are just as happy with them as Canon?
     
  2. mikerfns

    mikerfns TPF Noob!

    Joined:
    Sep 7, 2003
    Messages:
    44
    Likes Received:
    0
    Location:
    Nova Scotia, Canada
    The Canon EF lens you buy today *will* work on the next new camera body you buy 5 - 10 years from now.

    The Sigma might ... or it might not. You may be able to get Sigma to rechip the lens to work ... or you might not.

    Sigma is "affectionately" known as SIGnificant MAlfunction by some. You pays your money and takes your chances.
     
  3. thebeginning

    thebeginning TPF Noob!

    Joined:
    Jan 10, 2005
    Messages:
    3,795
    Likes Received:
    29
    Location:
    Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    Have you ever actually used any of sigma's nice lenses? For some odd reason I doubt it...
     
  4. photoboy15

    photoboy15 TPF Noob!

    Joined:
    Nov 16, 2005
    Messages:
    130
    Likes Received:
    1
    I had some old sigmas that didn't work on digital. If you want a cheaper off brand look into tamaron, but the real way to go is canon lenses.
     
  5. Jeff Canes

    Jeff Canes No longer a newbie, moving up!

    Joined:
    May 19, 2003
    Messages:
    6,190
    Likes Received:
    22
    Location:
    Hollywood, FLA USA
    Can others edit my Photos:
    Photos OK to edit
    The Sigma EXs are very fine lenses. I have bolt Canon L and Sigma EX grass, IMHO the Canon are just a little bit better, and in most case you will not see the different, Also before anyone starts butting down companies like Sigma and Tamaron do you Canon and Nikon make all of the lenses they sale, no they outsource them to companies like Sigma and Tamaron
     
  6. photogoddess

    photogoddess TPF Noob!

    Joined:
    Feb 29, 2004
    Messages:
    6,253
    Likes Received:
    34
    Location:
    Lala Land
    Can others edit my Photos:
    Photos NOT OK to edit
    I have 24-70 2.8L and a 70-200 2.8L IS Canon lenses. They were expensive but worth it. That said, I also have the Sigma 17-35 2.8 and L.O.V.E. it. I have no compatibility problems with any of my cameras, no focusing issues, no sharpness issues.... no issues at all. It was significantly lower in price than the Canon lens and in my opinion, is the best bang for a buck in my camera bag. :thumbsup:
     
  7. Dave_D

    Dave_D TPF Noob!

    Joined:
    Jul 20, 2005
    Messages:
    372
    Likes Received:
    5
    Location:
    Garden State
    I gave up on Canon a long time ago for dropping backwards compatibility with lenses, but that's besides the point. I have accumulated a lot of lenses over the years and when it was time to clean house I did some comparative lens tests to help me make up my mind as to which lenses to send on there way and which ones to keep. Of course all of the Nikon lenses stayed, but of the vivitar, tokina, tamron and sigma lenses; I only kept one sigma lens. Tamron and tokina fared better in results. Surprisingly I found that the more late model sigma lenses were the worst. Mostly because with the newer manufacturing processes of laser ground glass I just assumed they would be better, but that was not the case. The testing was done with the assitance of a friend of mine who is an engineer at Edmound Scientific Glass so, are method of testing had proper results. This is not to say that all of sigma lenses are crap. If you buy their low end stuff it will produce low end results. If you buy their high end stuff you will get high end results. As the adage goes: you get what you pay for. Even low end Canon and Nikon lenses are just as bad.
     
  8. mikerfns

    mikerfns TPF Noob!

    Joined:
    Sep 7, 2003
    Messages:
    44
    Likes Received:
    0
    Location:
    Nova Scotia, Canada
    Actually yes.

    Why don't you give Sigma a call and ask them to re-chip a AF 400/5.6 APO for you - I'll bet the answer will be "Sorry, but ..."

    I did not say ANYTHING about the quality of Sigma lenses, optical or build wise.

    Older Sigma lens incompatibility with Canon bodies is a well known issue. That will continue, since Sigma does NOT license the EF mount from Canon - they reverse engineer it. One change to the lens CPU "firmware" by Canon in the next series of lenses or bodies may cause you grief when you buy that brand new body and try to use your 6 year old Sigma lens on it. Hence you pays your money and takes your chances. You are kidding yourself if you think just because you buy a Sigma EX lens that it will be anymore "future proof" than their cheapest plastic $99 stuff.

    There is nothing wrong with buying Sigma lenses. But you should be aware of potential future incompatibility issues. The original question asked about "any real differences between a Canon and equivalent Sigma AutoFocus lens". Forward compatibility is a pretty big "difference" given the rapid evolution of DSLR bodies.

    If you don't believe me then go here, click on "NON-MFG LENSES" and "NON-MFG ZOOMS", and see how many Sigma lenses in Canon AF mount are listed as not usable on the Elan 7E, A2E, "Digital" or are listed as "film only":
    http://www.keh.com/shop/class.cfm?bid=CE&sid=newused&crid=12858782

    You won't see that disclaimer with ANY older Canon EF lenses.
     
  9. mikerfns

    mikerfns TPF Noob!

    Joined:
    Sep 7, 2003
    Messages:
    44
    Likes Received:
    0
    Location:
    Nova Scotia, Canada
    It is highly unlikely that Canon outsources any lenses to Sigma. If they did, Sigma would not need to reverse engineer the EF mount CPU protocol - they would have it direct from Canon.

    That doesn't mean Canon doesn't outsource, but Sigma is a very unlikely candidate for that third party build.
     
  10. Jeff Canes

    Jeff Canes No longer a newbie, moving up!

    Joined:
    May 19, 2003
    Messages:
    6,190
    Likes Received:
    22
    Location:
    Hollywood, FLA USA
    Can others edit my Photos:
    Photos OK to edit
    Read it in some photo magazine a few years back, hope you don’t want me to go look for the magazine
     
  11. binglemybongle

    binglemybongle TPF Noob!

    Joined:
    May 23, 2005
    Messages:
    156
    Likes Received:
    0
    Location:
    Manchester, UK
    So the basic things youre saying are:

    You get what you pay for.

    and

    If you get a cheap lens it wont be the best of quality.


    I've just got a Canon EOS Elan 7e and i'm hoping that it will last some time because it wont be getting abused - 3 to 4 rolls per month.

    I'm not too bothered about lens compatability because of this.


    I suppose the next question would be which basic lenses are a recommended necessity?

    I currently only have the standard 28-90mm f4-5.6 Canon zoom.
    Ive already noticed its a bit slow. Only really suitable for outdoor or well lit indoor use (without a tripod anyway).

    Im thinking along the lines of a 50mm, ~70-200mm and keeping the 28-90mm.

    I know the 50mm should be pretty fast, around f1.8. 1.4 would be nice but can't afford or justify.

    The long zoom im not too bothered about but it would be nice to have a FAST 28-90 or similar (35-80mm, 35-105mm, 28-80mm or even 28-70mm would do).

    Can anyone tell me what i can expect to pay for these lenses? Sigma, Tamron or Canon.

    When i say fast for the zooms, im expecting f2.8 or something. Probably f4 for the longer zoom.
     
  12. Rob

    Rob TPF Noob!

    Joined:
    Jan 29, 2005
    Messages:
    6,217
    Likes Received:
    134
    Location:
    London
    Looks like you've got a realistic picture of what you want. Get on the B&H website and look up the prices yourself. When you have two comparable lenses you want an opinion on come back to us and we can help!

    Rob
     

Share This Page