Lunt 40mm Ha Solar Telescope with B1200 Blocking Filter & Helical Focuser

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Lunt Solar Systems has recently upgraded this telescope with a new <0.4Å etalon (standard), delivering even higher contrast and finer solar detail than previous versions. All orders will ship with this latest, improved configuration—no action needed.
- New-generation <0.4Ã… etalon delivers higher contrast and finer solar surface detail than previous versions
- Lightweight grab-and-go design weighs under 3 lbs for effortless solar observing anywhere
- A smooth 1.25-inch helical focuser for easy visual observing and solar imaging
- H-alpha solar filters reveal stunning prominences, filaments, active regions, and chromospheric texture in real-time
Lunt 40mm H-alpha: The Ultimate Grab-and-Go Solar Telescope!
The Lunt LS40THa Dedicated H-Alpha Solar Telescope is the perfect entry into high-contrast solar observing—compact, lightweight, and incredibly fun to use. This updated version now features Lunt’s new-generation enhanced etalons with an upgraded <0.4Å bandpass, delivering improved solar contrast, darker backgrounds, and finer chromospheric detail compared to previous generations. The included B1200 blocking filter provides safe visual observing and entry-level solar imaging capability right out of the box.
Featuring a smooth helical focuser for easy and precise focusing during both visual and imaging sessions—making it easier to dial in on the Sun’s constantly changing activity. Weighing just 3 lbs (1.36 kg), the LS40THa is lightweight, easy to transport, and quick to set up, making it the perfect grab-and-go solar telescope for beginners and experienced observers alike!
Please Note: The B500 blocking filter shown in the image above is for demonstration purposes only and is not included. The included B1200 blocking filter is identical in design but not imaged.
Specifications
-
Aperture: 40 mm
-
Objective Glass: FLP51 ED Doublet
-
Focal Length: 400 mm
-
Focal Ratio: f/10
-
Etalon: Front-mounted; tilt-tuned
- Blocking Filter: 12 mm clear aperture - 1.25-inch diagonal
-
Bandpass (Single Stack): <0.4Å — individually verified
-
Double Stack (sold separately): <0.29Ã… combined
-
Focuser: 1.25″ Mini Helical
-
Weight: 2.6 lb (1.28 kg)
-
Night Use: No - dedicated H-alpha Solar
Other Information
- Country of Manufacture: United States
Lunt 40mm H-alpha: The Ultimate Grab-and-Go Solar Telescope!
The Lunt LS40THa Dedicated H-Alpha Solar Telescope is the perfect entry into high-contrast solar observing—compact, lightweight, and incredibly fun to use. This updated version now features Lunt’s new-generation enhanced etalons with an upgraded <0.4Å bandpass, delivering improved solar contrast, darker backgrounds, and finer chromospheric detail compared to previous generations. The included B1200 blocking filter provides safe visual observing and entry-level solar imaging capability right out of the box.
Featuring a smooth helical focuser for easy and precise focusing during both visual and imaging sessions—making it easier to dial in on the Sun’s constantly changing activity. Weighing just 3 lbs (1.36 kg), the LS40THa is lightweight, easy to transport, and quick to set up, making it the perfect grab-and-go solar telescope for beginners and experienced observers alike!
Please Note: The B500 blocking filter shown in the image above is for demonstration purposes only and is not included. The included B1200 blocking filter is identical in design but not imaged.
Specifications
-
Aperture: 40 mm
-
Objective Glass: FLP51 ED Doublet
-
Focal Length: 400 mm
-
Focal Ratio: f/10
-
Etalon: Front-mounted; tilt-tuned
- Blocking Filter: 12 mm clear aperture - 1.25-inch diagonal
-
Bandpass (Single Stack): <0.4Å — individually verified
-
Double Stack (sold separately): <0.29Ã… combined
-
Focuser: 1.25″ Mini Helical
-
Weight: 2.6 lb (1.28 kg)
-
Night Use: No - dedicated H-alpha Solar
| Manufacturer | Lunt Solar Systems |
|---|---|
| Telescope Focal Length | 301 - 400mm |
- 1x Lunt 40mm H-alpha Solar Telescope
- 1x 1.25″ Mini Helical Focuser
- 1x 12mm Blocking Filter Diagonal – 1.25"
- 1x TeleVue Sol Searcher
- 1x 4" Vixen-Style Dovetail Plate
Lunt Solar Systems has recently upgraded this telescope with a new <0.4Å etalon (standard), delivering even higher contrast and finer solar detail than previous versions. All orders will ship with this latest, improved configuration—no action needed.
- New-generation <0.4Ã… etalon delivers higher contrast and finer solar surface detail than previous versions
- Lightweight grab-and-go design weighs under 3 lbs for effortless solar observing anywhere
- A smooth 1.25-inch helical focuser for easy visual observing and solar imaging
- H-alpha solar filters reveal stunning prominences, filaments, active regions, and chromospheric texture in real-time
Lunt 40mm H-alpha: The Ultimate Grab-and-Go Solar Telescope!
The Lunt LS40THa Dedicated H-Alpha Solar Telescope is the perfect entry into high-contrast solar observing—compact, lightweight, and incredibly fun to use. This updated version now features Lunt’s new-generation enhanced etalons with an upgraded <0.4Å bandpass, delivering improved solar contrast, darker backgrounds, and finer chromospheric detail compared to previous generations. The included B1200 blocking filter provides safe visual observing and entry-level solar imaging capability right out of the box.
Featuring a smooth helical focuser for easy and precise focusing during both visual and imaging sessions—making it easier to dial in on the Sun’s constantly changing activity. Weighing just 3 lbs (1.36 kg), the LS40THa is lightweight, easy to transport, and quick to set up, making it the perfect grab-and-go solar telescope for beginners and experienced observers alike!
Please Note: The B500 blocking filter shown in the image above is for demonstration purposes only and is not included. The included B1200 blocking filter is identical in design but not imaged.
Specifications
-
Aperture: 40 mm
-
Objective Glass: FLP51 ED Doublet
-
Focal Length: 400 mm
-
Focal Ratio: f/10
-
Etalon: Front-mounted; tilt-tuned
- Blocking Filter: 12 mm clear aperture - 1.25-inch diagonal
-
Bandpass (Single Stack): <0.4Å — individually verified
-
Double Stack (sold separately): <0.29Ã… combined
-
Focuser: 1.25″ Mini Helical
-
Weight: 2.6 lb (1.28 kg)
-
Night Use: No - dedicated H-alpha Solar
Other Information
- Country of Manufacture: United States
| Manufacturer | Lunt Solar Systems |
|---|---|
| Telescope Focal Length | 301 - 400mm |
- 1x Lunt 40mm H-alpha Solar Telescope
- 1x 1.25″ Mini Helical Focuser
- 1x 12mm Blocking Filter Diagonal – 1.25"
- 1x TeleVue Sol Searcher
- 1x 4" Vixen-Style Dovetail Plate

Lunt 40mm Ha Solar Telescope with B1200 Blocking Filter & Helical Focuser
