Astrodon 1.25" Gen2 I-Series LRGB Filter Set – Mounted

If your deep-sky images look washed out or your star colors seem off, the problem is often your filters, not your camera. The Astrodon 1.25" Gen2 I-Series LRGB Filter Set fixes exactly that. This mounted set is built for interline CCD sensors and balances the red, green, and blue channels for near-equal exposure times. That means less time calculating ratios and more time actually imaging.

Astrodon designed this LRGB filter set to solve a common headache in astrophotography: uneven color response. Many budget filter sets force you to expose blue and green far longer than red, which wastes clear sky hours. This set uses balanced RGB weighting close to a 1:1:1 ratio, so your workflow stays simple and your color data stays clean.

Why This LRGB Filter Set Improves Your Galaxy Shots

Galaxy imaging depends heavily on color separation. Faint spiral arms and star-forming regions need accurate color rendering to stand out. This filter set reduces star halos and reflections, which keeps bright stars looking sharp instead of bloated. The gap between the red and green bands also cuts down light pollution interference, which matters a lot for anyone shooting from a city like Lahore or Karachi.

The luminance filter blocks near-infrared and UV light, so your detail layer stays crisp. Meanwhile, the blue filter reduces excess UV response while keeping OIII signal above 97% in both blue and green. That single detail matters if you shoot planetary nebulae, since it keeps their teal color accurate instead of shifting toward green or cyan.

Built to Match Your Existing Setup

One underrated feature is parfocal alignment with Astrodon's narrowband filters. If you already own or plan to add Ha, OIII, or SII filters later, you won't need to refocus every time you swap filters mid-session. This saves real imaging time on nights when clear skies don't last long. Astrodon manufactures every filter in the USA, and each one uses hard sputtered coatings that run edge to edge, so the coating won't degrade or peel over years of use.

Astrodon LRGB Filter Set Specifications

1. Set includes: Luminance, Red, Green, Blue (1.25" mounted)
2. Filter diameter: 31mm, mounted in a 49.7mm cell
3. Substrate: 3mm ±0.025mm fused silica, quarter-wave flat
4. Parallelism: 30 arcseconds
5. Weight: approximately 113 grams
6. Warranty: 5 years, backed by Astrodon

If you're building a full imaging train, pair this filter set with one of our cooled monochrome cameras, since mono sensors need LRGB filters to capture full color data. You can browse our complete LRGB filter sets collection if you want to compare other sizes or brands before deciding.

Sky Deep ships this filter set nationwide across Pakistan, and pricing already includes duties and taxes, so there's no surprise cost at delivery. Not sure this filter set fits your current telescope and camera combo? Our team offers free gear consultations, so feel free to reach out through our contact page before you order. You can also explore our full range of astronomy gear on the Sky Deep Co if you're still building your imaging kit.

FAQs

Q1: Does this filter set work with color CMOS cameras?

No, LRGB filter sets are made for monochrome cameras. Color CMOS sensors already capture RGB data through their built-in Bayer matrix.

Q2: What telescope types work best with this filter set?

It works well with most refractors and reflectors used for deep-sky imaging, as long as your imaging train uses a 1.25" filter wheel.

Q3: Will I need to refocus between filters?

No. This set is parfocal with Astrodon's narrowband filters, so focus stays consistent when you switch between them.

Q4: How long is the warranty on this filter set?

Astrodon backs this filter set with a 5-year warranty against coating defects.

Q5: Does Sky Deep offer local support for filter selection?

Yes, our team provides free consultations to help you match filters with your existing camera and telescope setup.