Friday, January 27, 2006
Nikon Wide Angle 120mm f/8 Nikkor-SW Lens
Nikon Wide Angle 120mm f/8 Nikkor-SW Lens
Features
The SW-Series lenses feature wide covering power and a wide image circle. Covering power can be extended to 105°/106° by stopping the lens down. SW series lenses deliver high contrast and resolution, reduced flare and excellent color rendition, due to Nikon Integrated Coating and strict control of aberrations. SW series lenses with a maximum aperture of f/8 are compact and well compensated for distortion.
Specifications
Optical Construction: 8 elements in 4 groups
Aperture Range: f/8-f/64
Covering Power: 105°
Image Circle @ Infinity: 200mm diameter @ f/8, 312mm diameter @ f/22
Shutter: Copal #0, designed exclusively for Nikon
Shutter Speed: 1-1/500 sec., T, B
Flange Attachment Size: 32.5mm dia. x 0.5mm (std Copal #0 size)
Slip-on Cap Sizes: 80mm front, 80mm rear
Filter Size: 77mm EW
Flange Focal Distance: 130.7mm
Overall Length: 92.5mm (3.6")
Weight: 1.29 lb (585 g)
Maximum Format Size: 8x10”
Heliopan 77mm Center ND 3x Glass Filter - 105mm Front Thread
Many wide angle lenses exhibit fall-off (darkening) at the edges. This can be improved with a center filter which has a progression from dark grey in the center to clear at the edges. The Heliopan wide angle center filters are available in two densities: ND-0.45 (filter factor 3x, or +1.5 stops) and ND-0.9 (filter factor 8x, +3 stops).
Most large format lens manufacturers make center filters for their wide angle lenses. Heliopan offers an economical alternative for lenses requiring a 3x filter. The 8x version is unique and the most powerful on the market.
