You asked
Is the olympus pen e pl8 good in low light?
Here is what the site says about that.
From Olympus PEN E-PL8: Olympus PEN E-PL8: A mirrorless camera by Olympus with a 16.1-megapixel Micro Four Thirds sensor, announced in 2016. Specs - Maker: Olympus - Mount: Micro Four Thirds - Sensor: Micro Four Thirds, 17.3 x 13mm, crop factor 2.0 - Resolution: 16.1 megapixels - Stabilisation: in the body - Announced: 2016 - Type: mirrorless camera Focal lengths on it Lenses frame like 2.0 times their focal length on full frame: 12mm like 24mm, 18mm ...
From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.
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