Explore Scientific Finder Illuminator Only - FNDRILLUM

I needed a replacement for a lost illuminator and this one screws on perfectly to the 50 mm finder. The red LED is bright enough to see crosshairs clearly without washing out faint stars.

Picked one of these up as a backup and was pleasantly surprised by how securely it threads onto the finder—no wobble at all. The red dot is plenty bright even against a suburban sky, and it hasn't flickered once in a month of use.

Dropped mine while swapping scopes and this replacement slid right in—no fuss. The LED throws a clean, even glow across the reticle without washing out faint stars, and the twist dimmer lets me dial it down to barely-there. Good thing it’s sold alone; saved me from buying a whole new finder.