Hi, I have just purchased a Canon EF 2X III teleconverter, it's between a Canon 70D and a Canon EF 100-400mm IS-L USM lens. The TTL auto focus does not function, BUT, with the ground breaking dual pixel CMOS in the Canon 70D, I can use the lens's auto focus in LIVE VIEW. The length and weight of this combination means no hand held, tripod only.
VILTROX C-AF 2X II TELEPLUS 2.0X Teleconverter Auto Focus Telephoto Extender Lens Converter for Canon EF Mount Super Telephoto Lens 70-200mm 100-400mm and DSLR Camera 80D 5DII 3.5 out of 5 stars 186 $115.00 $ 115 . 00
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Product description. The Sigma APO Teleconverter 2x EX DG for Canon Digital SLR Cameras is a dedicated APO teleconverter that can be mounted between select lenses and the camera body to increase the focal length by the power of two. The multi-layer coating reduces flare and ghosting, which is a common problem with digital cameras. The consensus here is quite correct, there is a little (but liveable) corner loss, but the center is very clear still. That said, if you are willing to spend more, the 100-400 f/4L will beat the 70-200 f/2.8 IS II with 2x teleconverter in terms of quality and speed, but it also costs 3 times as much. For $450 the teleconverter is a great thing
0983 280 283 / 081 6686 888. duytan2802@gmail.com. ACB 691088888 - VCB 9983280283 - TCB 8869999666 - Le Duy Tan. Canon Extender EF 2x II Hãng sản xuất Canon Độ dài tiêu cự 2X 7 lá khẩu chịu thời tiết Định dạng tương thích Canon EF Độ phóng đại 2x Lấy nét tự động Kích thước (DxL) 3,5 x 3,8 x 5,3

Putting a 2X teleconverter onto a 70-200/4 makes for an "effective" 140-400/8 lens. Due to the reduction in light reaching the AF sensors, your camera will turn off auto focus. A stronger 2X also will "cost" more loss of image quality due to degradation.

Viltrox speed booster lens compatible on m50 Canon Extender EF 2x III for sigma at 1.0, canon 70-200 f4 at f2.8 and Canon 135 at f1.4 and canon 40mm at f2.0. Amazon.com offers a wide range of Canon telephoto extender lenses for super zoom photography. Whether you need a 1.4x or a 2x magnification, you can find the compatible extender for your RF or EF lens and enjoy stunning image quality and performance. Shop now and get free shipping on eligible orders.
Compatibility: Again, Canon is not very specific, but suggests that the Extender EF 2x III is compatible with most telephoto and telephoto zoom lenses within Canon’s flagship professional L-series range. This teleconverter extends the focal length while only reducing the effective aperture of the lens by two stops.
The following lenses are all compatible with the RF 2x Extender. Lens. Filter Size (mm) Check Price & Reviews. Canon RF 100-400mm F5.6-8 IS USM. 67. Amazon | B&H. Canon RF 100-500mm F4.5-7.1L IS USM. 77. 70-200 F/4 IS with 2x extender. I have seen very little written about this combo and nearly everything that is said is not complimentary. I took the combo out the other evening and was pleasantly surprised with the results. I used a 5D mark iv so PDAF autofocus is possible despite a maximum aperture of F/8. .
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    • canon extender ef 2x iii compatible lenses sigma