Incredible Camera Lens For Northern Lights References. They are also often referred to as “fast” lenses, because you can use a faster shutter speed due to the extra light the aperture lets in. Here's what the website space.com has to say:

Web this is why the lenses i recommended for northern lights photography all tend to offer these wide apertures. Iso 5000 | 5 sec. Web what camera settings do you need to photograph the northern lights?