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Latest Review Posted Tamron Adaptall-2 SP 500mm f/8 Mirror (55BB)
Generally it's a value lens if the price is below $200. The best about this lens is sharpness with very little aberration and close to none vignetting. Similar to other mirror lenses, it's much lighter and more compact compare to conventional long range tele lenses. However it still needs steady support when shooting as it's not easy to focus with lenses with more than 300mm focal length. The bad about this lens is it's donut-like bokeh that looks unusual. details in out of focused zones are almost lost. If your focusing is spot on, you'll have clear, sharp images out of the lens. The macro function works well and this lens give you a closer focus distance when shoot in macro than many mirror lenses. A protective filter is recommended for this lens as dust can easily fall on to the mirror.

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