Optolong L-PARA Filter 2"
When does the delivery take place?
Delivery times vary depending on the country and destination postal code. They will be shown at checkout and apply only to products currently in stock.
For products marked as Not in stock, processing may take between 5 and 15 days. If delays occur, our customer service will contact you with timely updates.
What are the warranty terms?
All our products come with a 24-month legal warranty. Some brands provide extended warranty. Contact us for more info.
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Can I return a product?
You have the right to return a product within 14 days from delivery, as stated in our Refund Policy. Return shipping costs are the responsibility of the customer. Items must be returned in their original condition and packaging. Please contact us before returning.
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Vai al moduloOptolong L-Para 2” Dual Band Filter: High Quality for Emission Nebulae
The Optolong L-Para 2” Dual Band Filter is designed to enhance astrophotography by overcoming light pollution. With a 10 nm bandwidth for both H-Alpha (Ha) and Oxygen III (OIII) wavelengths, this filter delivers stunning images with exceptionally sharp details and high contrast, ideal for emission nebulae.
Key Features
• Bandwidth: 10 nm for both Ha and OIII wavelengths, maximizing nebula definition.
• Optical Material: Made with Schott monolithic optical substrate (non-glued) for superior quality.
• Glass Thickness: 2.0 mm (for both 1.25” and 2” filters).
• Surface Quality: 60/40, compliant with US military standard MIL-O-13830.
• Parallelism: 30”, ensuring distortion-free images.
• Band-Pass Transmission: TBD (to be determined for maximum precision).
• Optical Coating: Fully multi-coated to reduce reflections and improve light transmission.
• Optical Flatness: 1/4 λ (wavefront) precision for optimal sharpness.
Available Sizes
• 1.25”
• 2”
Perfect for Astrophotography
The Optolong L-Para filter is the perfect choice for astrophiles seeking peak performance even under light-polluted skies. Its advanced optical specifications make it an invaluable tool for capturing every detail of emission nebulae with vibrant colors and impeccable contrast.