StarShrink, from RC Astro, does one tidy job: shrink stars so they stop overwhelming the frame. NightScape Lab approaches the same problem differently with Declutter: flux-sculpted reduction that dims faint clutter by prominence while Constellation Guard protects the bright, round stars that define your sky. And it's one piece of a full nightscape-astrophotography workflow in one tool inside Photoshop, rather than a standalone plugin.
Bloated stars can bury the detail you worked to capture. StarShrink tackles exactly that: a focused Photoshop plugin for shrinking stars while keeping the image natural. At $39.95 with a perpetual license (August 2026 price), it's a simple, effective tool that stays out of the way, and the cheapest entry into RC Astro's lineup.
| Capability | NightScape Lab | StarShrink |
|---|---|---|
| Star reduction approach | Declutter: dims faint clutter by prominence | shrinks stars in place |
| Protects the bright, defining stars | ✓ Constellation Guard | ✓ |
| Full star removal (starless + Star Map layer) | ✓ | ✗ |
| Calibrated RAW stacking (sky + ground) | ✓ | ✗ |
| Lightroom Classic round-trip | ✓ | ✗ |
| White Balance / Defringe | ✓ | ✗ |
| Foreground Sky Merge + Star Trails | ✓ | ✗ |
| Runs inside Photoshop | ✓ panel | ✓ plugin |
| Platform | macOS & Windows | macOS + Windows |
| Price | $129 once · whole workflow | $39.95 perpetual · star reduction |
If star reduction is genuinely all you do, a focused $39.95 plugin like StarShrink may be all you need. NightScape Lab makes sense when you want reduction as part of a full nightscape workflow: stacking, White Balance, Defringe, the Foreground Sky Merge, and star trails in one place, on macOS and Windows.
Not quite, and honestly so. StarShrink shrinks stars in place. Declutter is flux-sculpted: it culls and dims faint star clutter by prominence, with Constellation Guard protecting the bright stars, and the same Stars tab can also fully remove stars into a starless layer plus a Star Map layer. They're two different roads to a calmer sky.
The whole nightscape workflow in one Photoshop panel, $129 once.
30-day money-back guarantee. If it's not for you, email for a full refund, no questions asked.