Astronomik H-Alpha 6 nm CCD Filter - 1.25" Round Mounted
The Answer for Nebulous Clarity!
With light pollution becoming an ever-increasing issue, the addition of a narrowband filter is a great way to overcome the challenges presented with urban stargazing and photography. This Astronomik H-Alpha 6 nm CCD Filter - 1.25" round mounted filter helps push your astro images to the next level by effectively isolating the H-Alpha transmission, which will result in more contrast and clarity in nebulous targets! This filter can be used for astrophotography; stunning details will come to life within your images!
This H-Alpha Filter is an extremely narrow emission-line filter. Designed for use with instruments as fast as f/3.5, this narrowband filter allows H-alpha emissions from nebulae to pass through while blocking other areas of the spectrum almost completely. This light-blocking nature improves contrast and clarity, making faint deep sky objects much more pronounced within your images. Using this filter guarantees 90% transmission or more at H-Alpha (656nm). This filter is made to Astronomik's exacting standards. While transmission ratings may vary between each filter, you are guaranteed a transmission rating greater than 90%, with a typical transmission rating of around 96% for the 6 nm Ha. The specific T-Max will be listed on the filter case. You can rest easy knowing that every unit is thoroughly tested and guaranteed to meet Astronomik's stellar benchmark of performance! With the ingenuity from Astronomik, you can expect exceptional performance, allowing urban stargazers the chance to witness vibrant, breathtaking details of the night sky! The Astronomik 6 nm H-alpha filter is for CCD imaging work and not suitable for visual or solar applications.
A High Performance Astrophotography Filter of the Utmost Quality
Let's Take a Deeper Look!
What sets one filter apart from another? Which filter is best for me? When developing a filter, manufacturers provide a chart that represents the wavelengths permitted through this filter. This gives insight into the filter’s performance, and what it can help you achieve. So, how exactly do I read a transmission chart? Our team has put together a comprehensive article, to help you understand the fundamentals on How to Read a Transmission Chart. Check out the article and feel more confident about choosing the right filter for your needs!
Improved Detail, Even from the City!
The Astronomik 6nm H-Alpha filter is an ideal choice when imaging from light-polluted skies, as it completely suppresses mercury (Hg) and sodium (Na) emission lines; the main culprits of light pollution. This high-quality astrophotography filter brings out the subtle structures and textures on a wide variety of deep sky objects. Read on as we delve deeper into the incredible features of this Astronomik 6 nm H-Alpha!
Light Pollution No More!
The FWHM of the Astronomik 6nm CCD H-Alpha 1.25” Filter is optimized for maximum
contrast between objects that emit H-alpha, such as emission nebulae, and
the background sky. While the 12nm is similar in function, the 6nm offers
higher contrast gain due to the smaller FWHM. The trade-off is the dimming of some background stars in the final image. Using the
Astronomik 6nm CCD H-Alpha in conjunction with the 12nm H-Alpha filter will
provide maximum contrast in HII objects (6nm) while keeping background stars
visible (12nm) in the final image. Some popular targets you will capture
exceptional nebulous details of are the North American Nebula, Rosette Nebula, Lagoon
Nebula, and other similar emission nebulae!
Premium Construction
The Astronomik H-alpha filters are threaded to fit 1.25" accessories and are completely resistant against high
humidity, scratches, and aging effects. Boosting a 1 mm thick parfocal
glass, you can swap Astronomik filters with little to no focus readjustment
needed. Transmission losses and chromatic distortions are greatly reduced
when paired with the correct f/3.5 or higher aperture! Star diffractions are
limited, and you will not see a reduction in the optical performance of your
telescope! This filter is delivered in a high-quality, long-lasting filter
box for transportation or storage.
