Nikon TC-20E III Teleconverter

- Khẩu nối Nikon nhân 2x tiêu cự
- Cấu tạo ống kính: 7 thấu kính thuộc 5 nhóm
- Tương thích FX và DX
- Kích thước-Trọng lượng: Ø66x46mm, 330g

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Nikon TC20E III – Tương thích có căn nét tự động

• AF-S 70-200mm f/2.8G ED VR II
• AF-S VR 70-200mm f/2.8G IF-ED
• AF-S 80-200mm f/2.8D IF-ED Nikon’s best 80-200mm
• AF-S VR 200mm f/2G IF-ED “Super Chubb”
• AF-S 300mm f/2.8G ED VR II
• AF-S VR 300mm f/2.8G IF-ED
• AF-S 300mm f/2.8D IF-ED II
• AF-S 300mm f/2.8D IF-ED
• AF-I 300mm f/2.8D IF-ED
• AF-S 400mm f/2.8G ED VR
• AF-S 400mm f/2.8D IF-ED
• AF-S 400mm f/2.8D IF-ED II
• AF-I 400mm f/2.8D IF-ED

Nikon TC20E III – Tương thích KHÔNG có căn nét tự động

• AF-S VR 105mm f/2.8G IF-ED Micro
• AF-S VR 200-400mm f/4G IF-ED
• AF-S 300mm f/4D IF-ED
• AF-S 500mm f/4G ED VR
• AF-S 500mm f/4D IF-ED II
• AF-S 500mm f/4D IF-ED
• AF-I 500mm f/4D IF-ED
• AF-S 600mm f/4G ED VR
• AF-S 600mm f/4D IF-ED II
• AF-S 600mm f/4D IF-ED
• AF-I 600mm f/4D IF-ED

Specifications
Optics: 7 elements in 6 groups, multicoated.
Size: 2.588″ diameter by 2.174″ flange-to-flange (65.73 x 55.22mm), measured (TC-20E), excluding lens release pip.
Nikon specifies 2.6″ (65mm) around by 2.2″ (55mm) long.
Weight: 12.577 oz. (356.6g), measured without caps; 13.160 oz. (373.05 g) with caps.
Nikon specifies 12.5 oz (355 g).
Front Cap: Special extended BF-3 or BF-3A (albino) cap.
Rear Cap: Standard LF-1.
Case: CL-31S, not included.
Nikon Product Number: 2130 (TC-20E II).
Performance
Intro Specifications Performance Recommendations
The TC-20E provides perfect data and signal interchange with Nikon cameras. This means the f/stop correctly reads two stops different both on the camera and in the EXIF data. VR works swell. Focal length reads double in the EXIF data, too.
The TC-20E has so much magnification that, at least on a D3, there is usually some loss of sharpness wide-open.
I’ve used the TC-20E with the 70-200mm VR, 400/2.8 AF-I and the 80-200/2.8 AF-S. See those reviews for details of performance with this converter.
If you’re splitting pixels, the TC-17E gives sharper results at the largest apertures. If you need 2x, the TC-20E is your converter.
This shot looks great to me, and needed the full 2x 400mm to give me an 800m lens.
Sunset. Nikon 400mm f/2.8 AF-I with TC-20E on a D300. f/11 at 1/2,000.
Recommendations
Intro Specifications Performance Recommendations
This converter is intended for professional use with long AF-S and AF-I super telephotos. It is not like the old TC-201 teleconverter that was intended for general use to make a normal lens into a telephoto. Likewise, the results are great with 300mm and longer fixed AF-I and AF-S lenses, but only so-so with the 80-200 AF-S and 70-200mm VR zooms.
If you have an f/2.8 AF-S or AF-I super telephoto lens this is a very handy addition.
It is useless unless you have an AF-I or AF-S lens of f/2.8 or faster. One CANNOT mount any other AF or manual lens or accessory to the front because it is keyed mechanically to prevent this.
For instance, the 70-300mm AF-S VR, 80-200mm f/2.8 AF-D and 80-400mm VRlenses can’t even be mounted to this converter. Nikon designed them this way.
It makes little sense to use this with the 28-70 AFS, and you’ll damage the system if you set the 28-70 lens to its shorter focal lengths since glass will collide. Only silly people worry about the fact that this probably does not work with the 17-35 AFS.
Just for fun, you can attach another manual focus teleconverter to the rear of this, but not the front.
There is no difference between the TC-20E and TC-20E II. They both work with VR and AF-S lenses.

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