(SR5) Sony 28-70mm FE (f/4.0?) lens will be the NEX-FF kit lens!

The Sony 28-70mm f/4.0 FE lens design.

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Trusted sources confirmed that the new Sony NEX-FF (NEX-9?) will have the Sony 28-70mm as “cheap” kit lens alternative of the also to be announced Zeiss 24-70mm FE lens. The sources didn’t specify the aperture of the lens but I am pretty sure the specs do match with the patent describing exactly such a lens (Source: Freepatentsonline). The patent describes an 28-70mm f/4.0 (constant aperture lens) designed for mirrorless cameras. Sony lens design goal is the following:

“Digital camera systems with interchangeable lenses in recent years are capable of shooting video. Therefore, a zoom lens favorable not only for shooting still images but also for shooting video is desired. It is necessary to move a focusing lens group at high speed in shooting video so as to follow quick movement of a subject. To achieve this, it is necessary to reduce weight of the focusing lens groups while maintaining favorable optical performance.”

This will be the lens most of us are likely going to buy along then NEX-9. Light, cheap and not as big as the Zeiss 24-70mm FE lens. In short, this is the “SR5” confirmed Full Frame E-mount lens list that will be announced in mid October along the new NEX-FF (liekly named NEX-9):

24-70mm Zeiss FE /aperture not know yet).
28-70mm Sony G FE f/4.0
35mm f/2.8 Zeiss FE
55mm f/1.8 Zeiss FE
Yet not confirmed by trusted sources but likely to happen: 85mm f/1.8

What about NEX-9 specs?
As I told you my trusted sources cannot unveil the specs for now because only few know them. But within the next 7-10 days I should get full specs from other sources! At least that is what they promised to me :)

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Reminder (SR = Sonyrumor):
SR1=probably fake rumor
SR2=rumor from unknown sources
SR3=50% chance it is correct
SR4=rumor from known sources
SR5=almost certainly correct!