The Optolong 1.25" UV/IR Cut Filter 044 is designed for CCD digital astrophotography. This filter helps to optimize visual observation by providing maximum contrast and brightness while retaining subtle object details. It features high efficiency hardened multi-coatings for sharp images.
Key Features:
* 96% transmission at 486nm (H-beta)
* 95% transmission at 496nm (OIII)
* 92.5% transmission at 501nm (OIII)
* 98% transmission at 656nm (H-alpha)
* Passes wavelengths from 450 to 520nm and from 620nm
* Blocks annoying wavelengths
* Ideal all-round deep sky filter, suitable even for small telescopes
* Resistant to humidity and aging
* Scratch-resistant glass material
* Excellent carrier material ensures optical performance of your telescope is not reduced
* Parfocal with other Optolong filters
* Glass thickness: 1.85mm
* Diffraction limited, maintaining telescope's optical performance
* Delivered in a high-quality, long-lasting filter box
⚠️ WARNING (California Proposition 65): This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Q: What is the size of the OPTOLONG UV/IR Cut Filter?A: The filter measures one point twenty-five inches in diameter. Its thin profile of zero point zero four inches ensures compatibility with various telescopes.
Q: What is the material of this filter?A: This filter is made of high-quality glass. The glass is optimized for superior optical performance in astrophotography.
Q: What are the transmission rates of this filter?A: The filter boasts up to ninety-six percent transmission at four hundred eighty-six nanometers. It effectively allows maximum contrast and brightness for astrophotography.
Q: How do I use the OPTOLONG UV/IR Cut Filter?A: Simply attach the filter to your telescope's eyepiece or camera adapter. This will enhance the clarity and contrast of celestial objects during observation.
Q: Is this filter suitable for beginners?A: Yes, the filter is ideal for both beginners and advanced users. It enhances the viewing experience, especially for deep-sky observations.
Q: Can this filter be used with small telescopes?A: Yes, it's designed as an all-around deep-sky filter, making it suitable for small telescopes. It provides excellent performance even with limited aperture.
Q: How should I clean the OPTOLONG filter?A: Use a soft, lint-free cloth to gently wipe the filter. Avoid using harsh chemicals or abrasive materials to maintain its optical quality.
Q: Is this filter resistant to humidity?A: Yes, this filter is completely resistant to high humidity. It ensures consistent performance in varying environmental conditions.
Q: How should I store the filter when not in use?A: Store the filter in its high-quality, protective box. This prevents scratches and damage, ensuring longevity and optical clarity.
Q: What makes this filter scratch-resistant?A: The filter features a hardened multi-coating that protects against scratches and aging effects. This ensures durability during use.
Q: Is this filter diffraction limited?A: Yes, the filter is diffraction limited. This means it will not reduce the optical performance of your telescope.
Q: Can I use this filter with other Optolong filters?A: Yes, it is parfocal with other Optolong filters. You can use them interchangeably without needing to refocus.
Q: What wavelengths does this filter block?A: The filter completely blocks annoying wavelengths outside its intended range. This maximizes the quality of your astrophotography.
Q: How thick is the glass of the filter?A: The glass thickness of the filter is one point eighty-five millimeters. This thickness is optimized for performance.
Q: Does the filter affect color balance?A: No, the filter is designed to maintain color balance while enhancing contrast. This allows for better observation of celestial details.
Q: What is the warranty on the OPTOLONG filter?A: The warranty details may vary, but OPTOLONG typically offers a guarantee on their filters. Always check with the manufacturer for specifics.