check here:KevinBarrett wrote:I sure would like to see some more official specs on those lenses... aperture blades? maximum magnification? The 18-200mm shows a close focus of 0.5m on the lens itself, but plenty of 200mm optics focus as close as that, and offer wildly different reproduction ratios.
http://www.imaging-resource.com/PRODS/NEX5/NEX5A4.HTM
or SonyStyle:
Optics/Lens
* Aperture (Max.) : F3.5-F5.6
* Aperture (Min.) : F22-F34
* Blades : 7 blades (Circular aperture?
* Filter Diameter : 49mm
* Focal Length : 18mm-55mm (27mm-82.5mm) - (35mm equivalent)
* Lens Groups-Elements : 9 groups, 11 elements (4 aspheric surfaces)
* Lens Mount Type : Sony α E-mount
* Lens Type : SEL16F28 Interchangeable α E-mount 18-55mm F3.5-5.6 OSS
* Magnification : 0.25x (APS-C)
* Minimum Focus Distance : 0.25mm
* Non-rotating Focusing Ring : No rotation
Optics/Lens
* Aperture (Max.) : F2.8
* Aperture (Min.) : F22
* Blades : 7 blades (Circular aperture?
* Filter Diameter : 49mm
* Focal Length : 16mm (35mm equivalent)
* Lens Groups-Elements : 5 groups, 5 elements (1 aspheric surfaces)
* Lens Mount Type : Sony α E-mount
* Lens Type : SEL16F28 Interchangeable α E-mount 16mm F2.8
* Magnification : 0.073x (APS-C)
* Minimum Focus Distance : 0.24m
* Non-rotating Focusing Ring : No rotation