Fujinon 16-55 mk I and mk II: parfocal, exposure steps...

[Claudio Monelli]

I'm thinking of buying the 16-55 for photos and videos for my X-H2s and I'm unsure between the mk I and the mk II.

Given that the optical quality seems more than good already with the mk I, more than sufficient for my needs, and that the greater weight is not a problem, I'm wondering if it's really worth it (for me, obviously) to buy the mk II at more or less full price or the mk I perhaps used or new, counting on the depreciation that I hope will be on the market in a little while.

In particular, I ask anyone who already owns the mk I with the latest firmware updates (I think it's 1.33):

1-is it parfocal? (I hate, on video, zooming with moments of out of focus);
2-at a fixed focal length, choosing automatic shutter priority, switching from a light scene to a dark scene and vice versa in the same clip, does the exposure change in steps or gradually? (the jerky variation is a typical flaw of many Fuji lenses);
3-zooming on the same scene (at fixed brightness) does the exposure vary jerkily during the zoom?

I cordially thank anyone who wants to inform me of their experience.

Edited December 4, 2024 by Claudio Monelli
keyboard mistake...

[jerryy]

Welcome to the forum.

I do not believe the XF16-55mm f2.8 either Mk I or II is parfocal. Or, if one of them are, that feature is never mentioned.

You may find the XF 18-120mm F4 lens is better suited to what you say you are wanting in a lens. It is parfocal and uses a stepping motor rather than a linear motor which will give you smoother transitions when focusing.

https://www.dpreview.com/news/3492623346/fujifilm-xf-18-120mm-f4-lm-pz-wr-lens-is-parfocal-weather-sealed-and-will-cost-just-899

Edited December 4, 2024 by jerryy