The Optolong L-eXtreme is a 7nm dual-bandpass filter designed for use with one-shot color cameras such as DSLRs and CCD/CMOS astrophotography cameras, especially suited for fast optical systems. This filter allows amateurs to image emission nebulae even in bright, light-polluted or moonlit skies by isolating the H-Alpha and Oxygen III nebula emission lines, maximizing contrast and signal-to-noise ratio. The L-eXtreme is an excellent choice for imaging in very light-polluted areas or when the moon is out. The advantage of this filter is that there is no light transmission between the H-beta and OIII lines, which maximizes the nebula's signal and darkens the sky background. Unlike the L-eNhance filter, which is a tri-band, the L-eXtreme filter is dual-band, passing just the Ha and OIII emission lines for improved light pollution rejection. Note: For imaging galaxies and reflection nebulae, the Optolong L-Pro filter is more appropriate as this filter will reject much of the light from those objects.
Features:
* Dual H-Alpha/O-III 7nm narrowband filter
* Allows for imaging in bright man-made light pollution and moonlit conditions
* Most useful for One-Shot Color cameras
* Take color images without needing to combine images with multiple filters
* Use for taking images of emission nebulae
⚠️ 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 are the dimensions of the Optolong L-Extreme filter?A: The Optolong L-Extreme filter measures two inches in diameter and is zero point zero four inches thick.
Q: What material is the Optolong L-Extreme filter made of?A: The Optolong L-Extreme filter is crafted from high-quality light pollution filtering material designed specifically for astrophotography.
Q: Is the Optolong L-Extreme filter suitable for all cameras?A: No, the Optolong L-Extreme filter is primarily designed for one-shot color cameras, such as DSLRs and CCD/CMOS astrophotography cameras.
Q: How do I install the Optolong L-Extreme filter?A: To install the Optolong L-Extreme filter, simply screw it into the filter thread of your camera or telescope, ensuring a secure fit.
Q: Can I use the Optolong L-Extreme filter for imaging galaxies?A: No, the Optolong L-Extreme filter is specifically designed for emission nebulae, while the Optolong L-Pro filter is better suited for imaging galaxies.
Q: How do I clean the Optolong L-Extreme filter?A: To clean the Optolong L-Extreme filter, use a soft lens cloth and a gentle lens cleaning solution to avoid scratches and damage.
Q: Does the Optolong L-Extreme filter help in light pollution?A: Yes, the Optolong L-Extreme filter significantly reduces the effects of light pollution, allowing for clearer imaging of nebulae.
Q: Can I use the Optolong L-Extreme filter during a full moon?A: Yes, the Optolong L-Extreme filter is effective in moonlit conditions, making it an excellent choice for astrophotography during a full moon.
Q: What is the light transmission range of the Optolong L-Extreme filter?A: The Optolong L-Extreme filter transmits light from the H-Alpha and O-III emission lines while blocking other wavelengths, improving image contrast.
Q: Is the Optolong L-Extreme filter easy to use for beginners?A: Yes, the Optolong L-Extreme filter is user-friendly and ideal for beginners looking to capture stunning images of emission nebulae.
Q: What type of images can I take with the Optolong L-Extreme filter?A: You can take color images of emission nebulae without needing to combine images with multiple filters when using the Optolong L-Extreme.
Q: Does the Optolong L-Extreme filter work with fast optical systems?A: Yes, the Optolong L-Extreme filter is optimized for fast optical systems, enhancing imaging performance.
Q: How does the Optolong L-Extreme filter compare to the L-eNhance filter?A: The Optolong L-Extreme filter is a dual-band filter, while the L-eNhance is a tri-band filter, making the L-eXtreme more effective for light pollution rejection.
Q: Is the Optolong L-Extreme filter compatible with all telescope brands?A: Yes, the Optolong L-Extreme filter is compatible with various telescope brands that accept two-inch filter sizes.
Q: What warranty does the Optolong L-Extreme filter come with?A: The Optolong L-Extreme filter typically comes with a limited warranty, but specific details may vary by retailer.