Ok so, quick background: lens glass is pretty forgiving if you start dry (blow/brush) and only go wet when you have to, but sensors are the opposite vibe—one wrong move and you’re smearing stuff across the filter stack. That’s why it matters to use known-good swabs/solution and not, like, mystery Amazon kits.

For your Z6 II (full-frame), I’ve been really satisfied with a simple setup: Giottos Rocket Air Blower Large first (seriously, this fixes most “dust spots” without touching anything), then Photographic Solutions Sensor Swab Ultra Type 2 (Full Frame 24mm) + Photographic Solutions Eclipse Optic Cleaning Fluid 2oz for actual sensor spots. For the front element smudges, I use Zeiss Lens Cleaning Wipes 200 Count in the field and PEC-PAD Lint-Free Wipes 100 Count + a couple drops of Eclipse at home—works well, no complaints so far.

Idk but I’d skip combo “all-in-one kits” and just buy these pieces… you end up with way better stuff and less risk. If you tell me whether the dust shows up in the same spot every time (f/16 sky test), I can help you decide if it’s sensor vs lens/adapter. gl!

TL;DR: for Z6 II, go known-brand swabs + methanol fluid, and a decent blower.

Option A: VisibleDust EZ Sensor Cleaning Kit for Full Frame 24mm — pricey but *super* consistent, nice for nervous first-timers.
Option B: VSGO Full Frame Sensor Cleaning Kit 24mm — cheaper, works fine imo, but QC feels a bit more “batchy”.
Option C (lens): PUROSOL Lens Cleaner Kit — actually great on coatings; pair with a clean microfiber + blower. And dont over-wet the swab... i mean, one pass, done. cheers

Seconding the known-brand swabs/fluid thing. For a solid value setup, I’ve had good luck with K&F Concept Full Frame Sensor Cleaning Kit 24mm (Full-Frame) — not “premium boutique,” but consistent enough if you’re careful, and usually like $20–$35. Pair it with a simple blower like VSGO Air Blower (Black) (often ~$10–$15). For lens glass, skip the “mega kits” and just do: blower first, then a microfiber, then *tiny* wet if needed. I use ROR Residual Oil Remover 1oz for fingerprints/oily stuff on front elements… works fast, doesnt streak much.

Also: don’t reuse swabs, and do one smooth pass per side. If you’re seeing the same spots after 2 swabs, stop and reassess (it’s usually oil, not dust). gl!

Honestly, I spent way too much time doing market research on this when I first got my Nikon. I noticed there’s basically three tiers out there: the high-end boutique brands, the mid-range stuff, and then the super cheap generic kits. I was realy cautious about the cheap ones because I’ve heard horror stories about residue, so I avoided those. I ended up going with a mid-tier kit that had good safety reviews. I was pretty nervous the first time I used the swabs on my sensor tho—my hands were shaking! It turned out fine, but I learned that you’re mostly paying for the quality control of the swabs so they don't leave lint behind. Does anyone feel like the 'pro' brands are actually safer for the coatings? I’m still a bit of a beginner and I’m always worried about messing up the sensor. I think maybe the peace of mind is worth the extra cost? Not 100% sure but I’d rather be safe than sorry.