Bower Telephoto Lens
A telephoto lens has to incorporate a special lens group known as a telephoto group; nevertheless, non-telephoto lenses of long focal length are often informally referred to as telephoto lenses. The angle of view created by a telephoto lens is the same as that created by an ordinary lens of the same specified focal length.
Bower is known as an affordable lens manufacturer. So you can find any bower telephoto lens here.
Bower 500mm f/8.0 Manual Focus Telephoto Lens
Filter Size: 30.5mm (rear)
f/Stop Range: f/8.0 (fixed)
Minimum Focus Distance: 5.6′ (1.7 m)
Magnification: 1:2.7
Angle of View: 4.1° x 2.7° (WxH)
2.7° x 1.8° (WxH) w/ APS-C (15 x 22mm) cameras
Groups/Elements: 6/7
Length: 3.5″ (88mm)
Maximum Diameter: 3.0″ (77mm)
Weight: 0.70 lb (320g)
This bower telephoto lens made in South Korea. Click here for more info!
Bower 500mm f/6.3 Manual Focus Telephoto Lens
Filter Size
95mm front, 34mm rear
f/Stop Range
f/6.3 (fixed)
Minimum Focus Distance
6.6′ (2.0 m)
Magnification
Not Specified by Manufacturer
Angle of View
4.1° x 2.7° (WxH)
2.6° x 1.7° (WxH) w/ APS-C (15 x 22mm) cameras
Groups/Elements
6/7
Length
4.7″ (120mm)
Maximum Diameter
3.9″ (98mm)
Weight
1.55 lbs (705g)
Avalailable also in other mount for Telephoto Lens for Canon, Contax, Minolta MD, Nikon, Olympus OM, Pentax, Sony/Minolta, Canon FD.