I find myself wondering why they quote such precise focal lengths. Has lens manufacturing reached the point where they can reliably hit the difference between 78mm and 80mm, or 215mm and 210mm? I haven't bought new hardware since the days when autofocus came in, and back then that label would have looked odd.
But, with all the computers in the design and manufacturering process, I can see how an extra few millimeters could be real enough, and the packaging does suggest a sliaghtly naive target market. 80-200mm zoom seemed to be the commonplace back then, with 70-210mm from some sources. And it's still within the 3:1 zoom.
I have an ancient fixed-focal-length 400mm lens with an f6.3 aperture, uses the T2 mount system. The view is a trifle dark for manual focusing.
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Date: 2006-01-26 07:25 am (UTC)But, with all the computers in the design and manufacturering process, I can see how an extra few millimeters could be real enough, and the packaging does suggest a sliaghtly naive target market. 80-200mm zoom seemed to be the commonplace back then, with 70-210mm from some sources. And it's still within the 3:1 zoom.
I have an ancient fixed-focal-length 400mm lens with an f6.3 aperture, uses the T2 mount system. The view is a trifle dark for manual focusing.