Technical data sheet
[Used 1-Year Warranty] Optolong 2” H-Alpha 7nm Filter – Like New
The Optolong 2” H-Alpha 7nm filter is a narrowband filter designed for deep-sky astrophotography, ideal for isolating H-alpha emission (656.3 nm) from nebulae. This item is USED, in LIKE NEW condition, and covered by a 1-year warranty.
Key Features
- 7 nm bandpass for high contrast.
- 2” format (standard M48 thread).
- Isolates H-alpha emission at 656.3 nm.
- Effective light pollution reduction.
- Excellent value for money.
Astroimaging Performance
The Optolong 7nm H-Alpha filter allows you to obtain high-contrast images of emission nebulae, improving the signal even under imperfect skies. It is ideal for deep integrations and narrowband work.
Compatibility
Compatible with monochrome astronomical cameras and modified cameras. Can be used on refractors, Newtonians, and RCs with 2” filter holders or filter wheels.
Condition and Warranty
The filter is in excellent condition, with no visible signs of wear, ready for use, and covered by a 1-year warranty.
Main Technical Specifications
| Brand | Optolong |
| Type | H-Alpha Filter |
| Bandpass | 7 nm |
| Format | 2” (M48) |
| Status | Used – Like new |
| Warranty | 1 year |
Ideal For
- Narrowband deep-sky astrophotography
- Emission nebulae
- Monochrome cameras
- Advanced astronomical setups
Package Contents
- Optolong 2” H-Alpha 7nm filter
Free shipping throughout Italy for orders over €199.99.
[Used 1-Year Warranty] Optolong 2” H-Alpha 7nm Filter – Like New
The Optolong 2” H-Alpha 7nm filter is a narrowband filter designed for deep-sky astrophotography, ideal for isolating H-alpha emission (656.3 nm) from nebulae. This item is USED, in LIKE NEW condition, and covered by a 1-year warranty.
Key Features
- 7 nm bandpass for high contrast.
- 2” format (standard M48 thread).
- Isolates H-alpha emission at 656.3 nm.
- Effective light pollution reduction.
- Excellent value for money.
Astroimaging Performance
The Optolong 7nm H-Alpha filter allows you to obtain high-contrast images of emission nebulae, improving the signal even under imperfect skies. It is ideal for deep integrations and narrowband work.
Compatibility
Compatible with monochrome astronomical cameras and modified cameras. Can be used on refractors, Newtonians, and RCs with 2” filter holders or filter wheels.
Condition and Warranty
The filter is in excellent condition, with no visible signs of wear, ready for use, and covered by a 1-year warranty.
Main Technical Specifications
| Brand | Optolong |
| Type | H-Alpha Filter |
| Bandpass | 7 nm |
| Format | 2” (M48) |
| Status | Used – Like new |
| Warranty | 1 year |
Ideal For
- Narrowband deep-sky astrophotography
- Emission nebulae
- Monochrome cameras
- Advanced astronomical setups
Package Contents
- Optolong 2” H-Alpha 7nm filter
Free shipping throughout Italy for orders over €199.99.
SKU:USA-83198
[Used 1-Year Warranty] Optolong 7nm H-Alpha 2" filter like new
- Regular price
- €149,99
- Sale price
- €149,99
- Regular price
-
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[Used 1-Year Warranty] Optolong 2” H-Alpha 7nm Filter – Like New
The Optolong 2” H-Alpha 7nm filter is a narrowband filter designed for deep-sky astrophotography, ideal for isolating H-alpha emission (656.3 nm) from nebulae. This item is USED, in LIKE NEW condition, and covered by a 1-year warranty.
Key Features
- 7 nm bandpass for high contrast.
- 2” format (standard M48 thread).
- Isolates H-alpha emission at 656.3 nm.
- Effective light pollution reduction.
- Excellent value for money.
Astroimaging Performance
The Optolong 7nm H-Alpha filter allows you to obtain high-contrast images of emission nebulae, improving the signal even under imperfect skies. It is ideal for deep integrations and narrowband work.
Compatibility
Compatible with monochrome astronomical cameras and modified cameras. Can be used on refractors, Newtonians, and RCs with 2” filter holders or filter wheels.
Condition and Warranty
The filter is in excellent condition, with no visible signs of wear, ready for use, and covered by a 1-year warranty.
Main Technical Specifications
| Brand | Optolong |
| Type | H-Alpha Filter |
| Bandpass | 7 nm |
| Format | 2” (M48) |
| Status | Used – Like new |
| Warranty | 1 year |
Ideal For
- Narrowband deep-sky astrophotography
- Emission nebulae
- Monochrome cameras
- Advanced astronomical setups
Package Contents
- Optolong 2” H-Alpha 7nm filter
Free shipping throughout Italy for orders over €199.99.
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Terms and conditions
Terms and conditions

