Best astrophotography lenses for the Panasonic Lumix G9

Panasonic Lumix G9 · 2017 · 20.3 MP Micro Four Thirds · 658 g · in-body stabilisation

4 astrophotography lenses that fit the Panasonic Lumix G9 (Micro Four Thirds mount) — wide and bright for stars and night sky. Sorted brightest-aperture first; every spec from the manufacturer's catalog.

Start with the Panasonic Leica DG 12mm f/1.4. At f/1.4 it is the brightest of the 4 astrophotography Micro Four Thirds lenses that fit the Panasonic Lumix G9 — the full comparison is below.

Last verified 2026-06-21 · Micro Four Thirds mount · Panasonic Micro Four Thirds body · 2× crop factor

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Complete the kit for the Panasonic Lumix G9: filters, accessories ↓

Focal	Lens	Buy	Max aperture	Weight	Filter	Type	Coverage	Best for
12mm	Panasonic Leica DG 12mm f/1.4	Check price →	f/1.4	335 g	62mm	prime	M4/3	Wide-angleAstrophotographyStreet
9mm	Panasonic Leica DG 9mm f/1.7	Check price →	f/1.7	130 g	55mm	prime	M4/3	Wide-angleAstrophotographyVlogging
10-25mm	Panasonic Leica DG 10-25mm f/1.7	Check price →	f/1.7	690 g	77mm	zoom	M4/3	Pro standard zoomWide-angleLow-lightAstrophotography
8mm	OM System M.Zuiko 8mm f/1.8 Fisheye PRO	Check price →	f/1.8	315 g	—	prime	M4/3	Wide-angleAstrophotography

One limit of this table: it lists only Micro Four Thirds lenses that mount natively on the Panasonic Lumix G9 — lenses fitted through an adapter are not included here. See which mounts adapt to which.

What these focal lengths actually give you on the Panasonic Lumix G9

The Panasonic Lumix G9 has a Micro Four Thirds sensor, so it sees a 2× crop of what each lens projects. Every focal length below therefore frames 2× tighter than its marked number. That works against you here: the widest option, the OM System M.Zuiko 8mm f/1.8 Fisheye PRO, frames like 16mm — not as wide as its marked number suggests. For a genuinely wide view on the Panasonic Lumix G9 you want a lens marked around 12mm or shorter.

Effective focal lengths are the marked focal length × the 2× sensor crop factor — the field of view, not a change in the lens itself. Aperture and depth of field are unaffected.

Weight & weather sealing on the Panasonic Lumix G9

On long approaches the decision is often made by weight, not aperture. Published weights for 4 of the 4 lenses above:

Packing light? The lightest here is the Panasonic Leica DG 9mm f/1.7 at 130g. The lightest weather-sealed option is the OM System M.Zuiko 8mm f/1.8 Fisheye PRO at 315g.

Weights and sealing as published for each lens — 2 from the manufacturer's own spec page, 2 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

FAQ

What is the best astrophotography lens for the Panasonic Lumix G9?
Panasonic Leica DG 12mm f/1.4 (12mm f/1.4) is the standout astrophotography option that fits the Panasonic Lumix G9. 4 astrophotography Micro Four Thirds lenses fit in total — compare them below.

Do these astrophotography lenses fit the Panasonic Lumix G9?
Yes — every lens here is a Micro Four Thirds mount lens, so it fits the Panasonic Lumix G9 and covers its Micro Four Thirds sensor.

What is the lightest astrophotography lens for the Panasonic Lumix G9?
The Panasonic Leica DG 9mm f/1.7 at 130g (manufacturer-published weight). The lightest weather-sealed option is the OM System M.Zuiko 8mm f/1.8 Fisheye PRO at 315g. Weights for 4 of the 4 lenses on this page are in the weight table above.

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All lenses for the Panasonic Lumix G9 · the same use across mounts: Astrophotography lenses for Micro Four Thirds · all cameras

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