Posted: Tue Jul 28, 2009 11:54 pm Post subject: |
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luisalegria wrote:
The scales are in feet and meters (but my feet are in blue)
BBar is the Tamron trademark for their multicoating.
The degrees are the angles of view (on a 35mm film frame) 30 degrees for 80mm, 11.3 for 210mm
Maximum available aperture changes as it is zoomed, this is not quite a constant-aperture zoom (but it almost is). So when wide open at 80mm this is an f/3.8, at 210mm it is an f/4
Those may be macro ratios, I never gave it much thought. It does focus quite close. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |