In addition to the upcoming Sony FE 16-35mm f/2.8 GM and FE 135mm GM lenses, Sony is also actively working on a new FE 400mm telephoto prime lens. The aperture of this Sony FE 400mm lens is NOT known yet, probably f/4.0 or f/2.8. The rumor mill said Sony is testing two versions: a faster f/2.8 lens and a more compact f/4.0 lens. That’s a great news for all Sony folks.
So, if it turns out to be true, which one do you prefer, Sony FE 400mm f/2.8 GM lens or Sony FE 400mm f/4.0 GM lens?
Reminder: The Sony FE 16-35mm f/2.8 GM lens is expected to be announced in late May and June. The Sony FE 135mm GM portrait lens will be faster than the newly announced Zeiss Batis 135mm f/2.8 ($1,999), and it will be announced several months later after the FE 16-35mm f/2.8 GM announcement.
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Read more: Best Sony Full Frame E Mount Lenses.