Bower SX4PK 2x Telextender with 4 Lens Elements
The Bower SX4PK 2x Telextender (also known as a tele-extender) will multiply the focal length of your existing lens by 2x, and will cut back the amount of light by 2 f/stops while maintaining full autofocus coupling.
For example, using a 2x teleconverter with a 300mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6.
Teleconverters are not recommended for lenses wider than 50mm, e.g. 28-105mm. However, full AF operation is only possible with lenses with open aperture of f/2.8 or brighter. Please be aware that AF will work properly only if there is enough light and contrast on the subject to activate the camera's AF sensors. Manual focusing is recommended when using lenses with smaller open f-stop value than those given above.
- Compact and lightweight
- Precision engineered
- Doubles the focal length of your lens while full auto coupling is maintained
- 10-Year warranty against defects in manufacturing
- Made in Japan
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Comments about Bower SX4PK 2x Telextender with 4 Lens Elements:
I have coupled it to my Pentax 50 to 200mm lens on my K200D. Used it to photograph the Full Moon and got terrific results. Does work in A/F mode or manual.
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- Original: $4.99
- Save: $0.50
- Price: $4.49
What's in the Box
- Front Lens Cap
- Rear Lens Cap
- Lens Pouch
- 10-Year Warranty against Defects in Manufacturing
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