百多元多一個長焦用
TOYO OPTICS Auto Tele Converter 2X Lens japan made-- M42 mount
lens is clean and clear.
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Placed between the camera body and lens, a teleconverter contains a set of optics that will effectively increase the focal length of any lens with which it is used. The TOYO Tele 2X converter has the effect of multiplying the focal length of your lens by 2.0x, turning a 300mm lens into an equivalent 600mm lens.
The 4-element design
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Magnification 2.0x
Construction E/G 4 Elements in 4 Groups
Coatings Digital Multi-Coating
Depth of Field 1/2 of prime lens
Minimum Focus Distance 0.0 ft (Same as prime lens m)
Exposure Magnification Approx 4 times (equivalent to 2 diaphragm)
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it is connect your lens to camera via m42 mount.
use your 24mm lens f2.8 can change to 48mm f5.6
50mm f1.7 lens change to 100mm f4.5
300mm f5.6 change to 600mm f11
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TOYO 2X Tele Converter Lens日本製造-- M42
鏡頭是乾淨的，明確的。
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照相機主體和透鏡之間放置一個增距鏡包含一組光學這將有效增加與使用它的任何透鏡的焦距。該TOYO 2x Tele Converter Lens 2X轉換器具有2.0倍通過將鏡頭焦距乘以轉向300mm的鏡頭成等價600毫米鏡頭的效果。
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放大倍率2.0倍
施工E / G 4元4組
塗料數碼多層鍍膜
定焦鏡頭的場1/2深度
最短對焦距離0.0英尺（同主鏡頭米）
曝光放大倍率約4倍（相當於2光闌）
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它是通過M42卡口鏡頭的連接到相機。
使用24mm鏡頭F2.8可以換到48毫米F5.6
50毫米F1.7鏡頭變化至100mm F4.5
300毫米F5.6變化至600mm F11
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