Teleconverters are much maligned by people who seem to expect too much from them but if used in the right combination with a lens of equal quality that was designed and even manufactured by the same company then they can be a wise choice. I have purchased this to use with the Fujifilm 70-300 telephoto lens and from my initial observations it is a fantastic combination. These are not cheap components but ... "you get what you pay for" and I would recommend this combination without hesitation.
Verified purchase: Yes | Condition: Pre-owned
I sold my Fuji 100-400 lens as it was heavy and too physically large for me. My 70-300mm Fuji is about half the size with the same quality and f4 aperture. This 1.4x gives me a 420mm focal length with a manageable size/weight around 2/3 of the bigger lens. Sharpness is the same but your max f stop becomes f5.6.
Verified purchase: Yes | Condition: Pre-owned
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