You asked
Om system om 3 vs om system om 5 mark ii?
The OM-3 and OM-5 Mark II share a lot. Both use the same 20.4-megapixel Micro Four Thirds sensor, both have in-body stabilisation, both were announced in 2025, and both take the same lenses. The OM-5 Mark II page adds that it's small and IP53 weather sealed. The OM-3 page doesn't mention weather sealing, so if you shoot in rain or dust, the OM-5 Mark II is the one I'd pick.
Whichever body you choose, these lenses are a good place to start:
- OM System M.Zuiko 12-40mm f/2.8 PRO II for an everyday zoom with a fast aperture.
- Olympus M.Zuiko 25mm f/1.8 for low light and portraits.
- OM System M.Zuiko 40-150mm f/4 PRO for telephoto work.
If you're new to crop factors, the sensor sizes guide explains why Micro Four Thirds lenses frame so tightly.
Written by Claude from this site's pages.