Thanks James. I have also been directed towards come f2.8 tamron lenses too Rob Merchant Digital Media Magic LLC 4512 Foxtail Drive Nazareth, PA 18064 610.759.1627 home 610.759.5189 office 908.419.2062 mobile mailto:rwmerchant@xxxxxxxxxxx http://mysite.verizon.net/dmmagic/show01302007.html -----Original Message----- From: James Schenken <jds@xxxxxxxxxxxxxxx> Date: Fri, 15 Aug 2008 12:55:56 To: List for Photo/Imaging Educators - Professionals - Students<photoforum@xxxxxxxxxxxxxxxxxx> Subject: Re: D300 compatible lenses Rob: Don't have one but they are highly reated. Here is one review: http://www.bythom.com/18200lens.htm Note that at the 135-200mm focal length range, the max aperture is f/5.6 Stadium lighting in my experience isn't very bright and to get sharp action pix under those conditions for ISO 400, I need f/2.8 and 1/1000th shutter speed. The VR function for this lens won't help at all under these conditions since the objects will be moving and VR won't fix that. For portraiture, I think the lens my work nicely. You'll have to manage you depth of field since the max aperture isn't large but care in composition and selection of background should take care of that. The use of a 2X extender with this lens will yield a max aperture of f/11 = way to slow for any kind of sports photography except bright sunlight or in the snow. No information on the Sigma 400. Cheers, James At 03:34 PM 8/15/2008 +0000, you wrote: >Hi, > >I have decided to upgrade to a Nikon D300. I primarily shoot >sports/ news photograhy and need the speed for stadium lighting >without flash. I am considering the Nikon 18-200 mm as the initial >lens. But I also shoot my share of portrait shots. Do you think it >is fast enough. I am also considering a 400 mm sigma for telephoto >and wonder if a list member has any experience or >recommendations with this equipment. >Another thought would be to try a doubler with the 18-200 > >Best Regards, > >Rob Merchant James Schenken
