10-18-2010, 02:24 PM
[quote name='hwyhobo' timestamp='1287000801' post='3619']
Being new to the forum here (although I have read the Photozone reviews for a long time, love them), I didn't see if there is a schedule of lenses to be reviewed. Hope to see the Nikon 28-300 reviewed soon. It looks like a potentially nice hiking lens. In anticipation of the review, I would also love to see an unusual comparison - I would love to see the quality of the lens compared to 700-200 f/2.8 II _with the new 2xTCIII_ at their overlapping focal lengths (140-300mm). I know the cost and weight make them seem like totally different animals, but even more so, I would love to see how much in IQ I give up by going with a smaller, lighter, and cheaper lens.
Also, I understand the issue with magnification and IF mechanism, but it would be very helpful to have a few simple data points, for instance, at a distance of 50 cm the max focal length is 100 mm, at a distance of 2 m the max focal length is ..., 5 m ..., 20 m .... It would also be nice to know at which distance the lens can become a real 300 mm, assuming it is short of infinity.
Thanks for a great site.
[/quote]
All you need to know about the lens including the effective focal length at a given distance is answered here: http://www.kenrockwell.com/nikon/28-300mm.htm
YOur conclusion about the opical quality may be differnt than Mr Rockwell's though. But he provides 100% crops and comprisms with other lenses, making it easy for you to evaluate lens perfomance for yourself.
Being new to the forum here (although I have read the Photozone reviews for a long time, love them), I didn't see if there is a schedule of lenses to be reviewed. Hope to see the Nikon 28-300 reviewed soon. It looks like a potentially nice hiking lens. In anticipation of the review, I would also love to see an unusual comparison - I would love to see the quality of the lens compared to 700-200 f/2.8 II _with the new 2xTCIII_ at their overlapping focal lengths (140-300mm). I know the cost and weight make them seem like totally different animals, but even more so, I would love to see how much in IQ I give up by going with a smaller, lighter, and cheaper lens.
Also, I understand the issue with magnification and IF mechanism, but it would be very helpful to have a few simple data points, for instance, at a distance of 50 cm the max focal length is 100 mm, at a distance of 2 m the max focal length is ..., 5 m ..., 20 m .... It would also be nice to know at which distance the lens can become a real 300 mm, assuming it is short of infinity.
Thanks for a great site.
[/quote]
All you need to know about the lens including the effective focal length at a given distance is answered here: http://www.kenrockwell.com/nikon/28-300mm.htm
YOur conclusion about the opical quality may be differnt than Mr Rockwell's though. But he provides 100% crops and comprisms with other lenses, making it easy for you to evaluate lens perfomance for yourself.