Archived posting to the Leica Users Group, 2008/01/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>> Justin Viiret <jviiret@gmail.com> wrote: >> >>> <http://www.dpreview.com/news/0801/08013101sigma250500.asp> >> >> DPReview says this is the ultimate wildlife lens? Only if the >> photographer >> never ventures more than 100 ft beyond his SUV. >> >> Doug Herr >> Birdman of Sacramento >> http://www.wildlightphoto.com >> >> > > This range of a lens 200-500mm and at f2.8 takes exactly the full advantage > of the 1.5 crop format. Which for all practical purposes is what we used to > call "half frame". > To design a lens close to these specs for the 24x36mm format would require > helium balloons. > And parachutes. > And gyros. Some Styrofoam. Lots of kite string. Foam. Tylenol. > Which reminds me I'd think vibration stabilization would be an built in > part > of such a lens design as this. > > vibration stabilization is becoming a very big deal. > Its the next big thing for me. > Unless I switch back to Leica as my front row clicker. > > > > > Mark William Rabiner > markrabiner.com > > Well I take back all of the above. Wrong again! This new monster lens from Sigma I figured was a usable sub monster because of the smaller 1.5 crop format. But I was wrong. Its a full big boy monster because it will cover 24x36. A big mistake if you ask me for reasons at the top of this page. This will really look like a real bazooka. Someone using it is in danger of getting "painted" and taken out by a satellite. If it had been for the smaller format digital cameras it would be really so much more usable. Hand hold able. As is it needs a built in monopod with springs like s pogo stick. Or anti gravity gyro VR. The Sigma People have DC be their cropped format lenses for digital But the DG they way is for digital too. But they don't overly clarify it would cover 24x36. And also be good for film. They'd loose money if they said it would also be good for film no doubt. Mark William Rabiner markrabiner.com