Meike MK-EFTR-4PS 4 Points Star Filter for Canon EOS R

The Meike MK-EFTR-4PS is a drop-in star filter that sits inside compatible Canon and Meike EF-to-EOS R mount adapters, turning point light sources into clean four-pointed star patterns. Unlike traditional screw-on star filters that need to match a specific lens thread diameter, this drop-in design works across every lens you mount on the adapter—making it a single purchase that covers your entire EF lens collection when shooting on Canon's mirrorless RF bodies. The filter's dial wheel provides 360° of rotation, letting you precisely position the star points to complement your composition, whether you want vertical and horizontal rays or a diagonal orientation.

In practice, the MK-EFTR-4PS is most effective in nighttime and low-light photography where isolated point light sources—streetlights, holiday decorations, distant city lights—are prominent in the frame. The filter's cross-hatch etching diffracts light from these sources into defined four-point stars, adding visual drama without heavy post-processing. It can also enhance daytime shots containing specular highlights, such as sunlight glinting off water or chrome surfaces. The filter is lightweight and compact enough to store in a small case within your camera bag, and swapping it into the adapter slot takes just seconds. For Canon EOS R shooters who use EF lenses through an adapter, it is a versatile creative tool that stays out of the way until you need it.