birderbill1 wrote:
While the zoom movement is suboptimal in comparison to the 200-600 and the OM 150-400, there is nothing Sony needs to fix in the units it has produced. There is quite a bit of glass and metal to move in the 100-400, as there is with external telephoto zooms. AFAIK they all have a zoom tighten/lock capability to throttle or prevent inadvertent zoom movement when the lenses are not in a horizontal position. Most reviewers have discussed the 100-400's zoom movement characteristics since day one of the lens being made public.
If the creep was present on all of these 100-400mm lenses (or on none of them), I’d be with you. But if the reports that it affects only some lenses turn out to be accurate it seems likely that it is a design or manufacturing flaw that Sony should address.
Jul 07, 2026 at 12:52 PM
Previous versions of gdanmitchell's message #17067819 « Sony 100-400 F4.5 Internal Zoom Creep ? »
