 XR 28 300 28 mm F4.5 corner.jpg
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 XR 28 300 42 mm F4 center.jpg
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 XR 28 300 42 mm F4 corner.jpg
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 XR 28 300 42 mm F4.5 center.jpg
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 XR 28 300 42 mm F4.5 corner.jpg
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 XR 28 300 71 mm F4.5 center.jpg
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 XR 28 300 71 mm F4.5 corner.jpg
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 old 75 300 IS 100mm@ f4.5
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 200mm f4 20130106 79 sharpness test.JPG
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 EF500/f4 + 2.0x + 1.4x + 400D = 1400 mm focal length, 2240 mm in viewfinder, reduced 50%)
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