arthuryeo Posted March 8, 2007 Share Posted March 8, 2007 Constant f2.8 200-500mm APO !!! http://www.dpreview.com/news/0703/07030805sigma200500mm.asp Wooohoooo .... Or should I call it SigGoz ? Link to comment Share on other sites More sharing options...
ShunCheung Posted March 8, 2007 Share Posted March 8, 2007 500mm/f2.8 means a 178mm front element (500mm divided by 2.8) while a 200mm/f2.8 has a 71mm front element. Forget about price and optical quality, any 500mm/f2.8 is just not very practical unless it is stationally mounted in some building or perhaps some truck. Link to comment Share on other sites More sharing options...
shawn_rahman Posted March 8, 2007 Share Posted March 8, 2007 Wow - not exactly a walk-around lens, is it? The 1.5 factor with the teleconverter is mindboggling. Link to comment Share on other sites More sharing options...
dean.wette Posted March 8, 2007 Share Posted March 8, 2007 I saw it named Sigzilla over on Nikon Cafe. So I guess using it at the racetrack is out, huh? Link to comment Share on other sites More sharing options...
michaelschrag Posted March 8, 2007 Share Posted March 8, 2007 I think that many wildlife shooters would welcome a good zoom with this type of range (especially if it had better IQ than their 50-500mm) but at f/2.8 its virtually usuable from a mobility standpoint. Th lens must be aimed at those who sit on the sidelines at sporting events, shooting sometimes with poor lighting. Link to comment Share on other sites More sharing options...
henryberkins Posted March 8, 2007 Share Posted March 8, 2007 mount it to a concrete block, put a blind around it and set up some feeders :) Link to comment Share on other sites More sharing options...
greg s Posted March 8, 2007 Share Posted March 8, 2007 "unless it is stationally mounted in some building or perhaps some truck." Shun, Are you saying this thing needs its own observatory dome? :) or perhaps launch it in space to replace the Hubble. I am copyrighting the term 'robo-pod' for the device needed to move it around in the field. Link to comment Share on other sites More sharing options...
ShunCheung Posted March 8, 2007 Share Posted March 8, 2007 Greg, I have never owned any Sigma lens and this lens is not going to change that fact. Even though Sigma were willing to give one to me for free, I wouldn't use it. My 500mm/f4 is giving me enough trouble with air travel and hiking. Link to comment Share on other sites More sharing options...
nick_nikolaev Posted March 8, 2007 Share Posted March 8, 2007 I guess, the next question about this lens will be: "Can anyone saw it in half for me? Can't stuff it in my truck" Ha-ha.. :) Link to comment Share on other sites More sharing options...
Mike D Posted March 8, 2007 Share Posted March 8, 2007 Since a substantial portion of the successful images of pro football are taken with Canon 400 F2.8 lenses, I would think a 200-500 F2.8 would be fantastic. With the fixed focal length lens, you're stuck at 400. With the 200-500 Sigzilla, you can capture images over a larger area of the field. BTW my 300-800 Sigmonster is incredibly sharp at all focal lengths due to the use of ultra low dispersion glass. Link to comment Share on other sites More sharing options...
nick_nikolaev Posted March 9, 2007 Share Posted March 9, 2007 As we can see, an idea of a pro-grade super-zoom was quite successful on the market, with Nikon's 200-400 and Sigma analogues, so its interesting - shall Canon give their response to all the latter's, or proceed designing fix-focal super-tele? Link to comment Share on other sites More sharing options...
ShunCheung Posted March 9, 2007 Share Posted March 9, 2007 Nikon's 200-400mm/f4 AF-S VR is an excellent lens, even at f4. It is also a bit cheaper and smaller than the 500mm/f4 AF-S. Sigma has not yet set the price for this 200-500mm/f2.8. I am not sure about its quality at f2.8; in case you need to stop down a bit, it would totally defeat the whole purpose for f2.8. Regardless, weight and size, and most likely price, are the main problems. In sports photography, the photographer needs to be nimble and have quick reactions. Handling such a huge lens is going to be a problem. I wonder how many of them Sigma will be able to sell. Link to comment Share on other sites More sharing options...
nick_nikolaev Posted March 9, 2007 Share Posted March 9, 2007 Thank you, Shun. Probably, this Sigma's optical monster is in a way a demonstration of the company's Hi-Tec skills, sort of a statement: " We CAN do this, and even better", like Nikon's legendary 300 2IF-ED, and, presumably, may not stay for long in production. Link to comment Share on other sites More sharing options...
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