canon 100-400 or bigma?

I am looking for abit more reach for bird shots and have been considering upgrading to the canon 100-400l or the sigma 50-500,i must say from what i have read,seen and heard so far i am leaning towards the canon but i am still undecided so any views on which lens i should choose would

I am looking for abit more reach for bird shots and have been considering upgrading to the canon 100-400l or the sigma 50-500,i must say from what i have read,seen and heard so far i am leaning towards the canon but i am still undecided so any views on which lens i should choose would be great.



Dave:t:

Source: http://www.birdforum.net/showthread.php?t=107526&goto=newpost


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...I am looking for abit more reach for bird shots and have been considering upgrading to the canon 100-400l or the sigma 50-500,i must say from what i have read,seen and heard so far i am leaning towards the canon but i am still undecided ...
http://www.birdforum.net/showthread.php?t=107526

...Forum: Canon Posted By: robbyuk Post Time: Friday 15th February 2008 at 17:05.
http://www.birdforum.net/showthread.php?t=107526&goto=newpost

...Forum: Welcome Forum Posted By: the undertaker Post Time: 06-01-2008 at 19:06.
http://www.talkphotography.co.uk/forums/showthread.php?t=44059&goto=newpost

...IchiKoko a posté une réponse :. if it was a 100-400 f/2.8 it would be just as heavy as that new bigma O_O probably bigger with IS and more glass lol that would be so easy to hand hold ;)
http://www.flickr.com/groups/canondslr/discuss/72157603836768142/72157603848803661/

...Stay away from Bigma.... IMO its not that sharp... 70-200 might not be long enough, however the 100-400 might not be fast enough, but it is plenty versatile... I have tried 1.4 and 2 extenders on my 70-200 2.8 IS and wasnt extremely ...
http://www.flickr.com/groups/canondslr/discuss/72157603899883127/72157603899891465/

...Currently only the Canon 100-400 and Sigma 80-400 include it. Another thing to note is the sheer number of lenses in Sigma's range. I'm shocked they don't reduce the number of zooms by cutting one or two out (I expect they will soon). ...
http://stanfordphoto.blogspot.com/2008/01/inexpensive-super-telephotos.html

...{A Canon 75-300 mm usm 111 } . The camera body I currently use is a 400D,I wont be upgrading that for a few years.I am thinking along these lines.The Canon 100 -400 F5.6 zoom,nicknamed the pump I believe,It sounds like a nice lens,is ...
http://www.wildaboutbritain.co.uk/forums/photography-critique-and-advice/22424-wich-lens-would-you-go.html

...... considering buying the Bigma for bird photography and wanting to evaluate IQ before you buy, this guy's site has hundreds of excellent bird photos taken with a Bigma, albeit with a Canon camera body. He also has a Canon 100-400 so ...
http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/18428-bigma-bird-photography.html

...I've decided to sell my 50-500 Sigma and start saving for a 100-400-L. This Bigma is used - I'm the second owner - and works perfectly. There is some paint chipping on the tripod mount, nothing that hurts the lens at all. ...
http://www.texasphotoforum.com/forum/showthread.php?t=60152&goto=newpost

...Yeah, with the hood on. ;>)... I have used both. My friend has the Bigma on his Pentax K10 and gets nice sharp images when on a tripod. I chose the 100-400 for the IS. It was more money but a lot $$ less then many lenses. ...
http://www.flickr.com/groups/400d/discuss/72157603808803257/72157603815514216/