Optolong 2" Filter Set with LRGB, H-Alpha, SII, and OIII Filters
Optolong has discontinued the 2" LRGB, H-Alpha, SII, OIII Filter Set, and we are out of stock. Here is a link to the Imaging Filters we carry at High Point. Hopefully, you can find a proper replacement in this selection. If we can be of further assistance, please don't hesitate to call us at 1-800-266-9590 or send an email, and we will be happy to help you. Thank you!
Seven Precision Filters to Help You Capture the Beauty of the Cosmos!
Including a total of seven filters, this Optolong 2” filter set has everything you need to capture vibrant, stunning images with your monochrome camera! Utilize the LRGB filters to collect the beautiful true colors of the universe, or switch to the narrowband filters for dramatic displays of nebulosity. By combining data from any of these seven filters, you can unleash your creativity, producing next-level astroimages.
Within this package you’ll find the following filters: luminance, red, green, blue, Ha, OIII, and SII. Each filter is 2” in diameter encased within a high quality metal threaded filter housing, offering effortless integration into your imaging train. Made of high quality Schott glass, these filters deliver the utmost performance, providing sharp detail on nebulosity and offering exceptional contrast on both narrowband and broadband wavelengths. By offering near limitless imaging opportunities and creative freedom, this Optolong Filter Set helps you unlock the full potential of your astrophotography equipment, making it a must have within your imaging toolkit!
A High Performance Astrophotography Filter Set 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!
The Complete Imaging Set
Whether you’re looking to produce true-color astroimages, enhance nebulosity with HaRGB imaging, or create vivid SHO imagery, this filter set provides everything you need to capture the beauty of our universe in outstanding detail. Read more below as we delve deeper into the key characteristics of each filter within this Optolong 2” Filter Set!
Optolong LRGB Filter Set
Allowing you to capture the natural colors of the universe, the included LRGB filters provide stunning detail on the planets, galaxies, star clusters, and nebulae. These filters have been crafted to produce the utmost contrast through precise optimization of their transmission lines. For instance, a gap between the red and green filters block out the Sodium 589 nm line, an emission associated with light pollution produced by sodium vapor lamps. Additionally, OIII emissions are allowed to overlap on the blue and green filters to provide more natural-looking colors. These filters also block infrared wavelengths from 700 nm to 1100 nm for use without a separate IR-Cut filter, producing tighter, sharper stars.
Optolong 7nm H-Alpha Filter
With hydrogen being the most abundant emission within our universe, this Ha filter is a key instrument, providing outstanding detail within your images. Centered around the 656 nm wavelength, all other wavelengths are effectively blocked out, making this filter perfect for imaging from the city or during gibbous Moon phases. The slim 7 nm bandwidth provides stark contrast on hydrogen nebulosity, highlighting intricate structure to take your images to the next level!
Optolong 6.5nm SII Filter
Sulfur, one of the many glowing gasses within emission nebulae, emits red light at a wavelength of 672 nm. This Optolong Sulfur filter is centered around this wavelength, and features a narrow bandwidth of 6.5 nm. With a bandwidth this slim, intrusive light from street lamps, surrounding houses, and even the Moon are of little concern, allowing you to capture striking detail on Suflur nebulosity amidst light pollution. A vital component to SHO imaging, this filter helps you create vibrant Hubble Palette images rich in color!
Optolong 6.5nm OIII Filter
OIII gas emits a beautiful blue/green color, and is highly abundant within emission nebulae. Centered around the 500 nm OIII wavelength and featuring a tight bandwidth of 6.5 nm, this Optolong OIII filter isolates this stunning emission from the background sky, producing high contrast images filled with nebulosity. This light-blocking nature means light from urban settings and the Moon are significantly less impactful on the quality of your astroimages as well. Combine the captured OIII data with H-alpha and SII data to create vivid Hubble Palette images, or get creative with other color combinations, such as the bi-color HOO Palette!
Integrates With Simplicity
With two inches in diameter, housing M48 x 0.75 threads, and offering a slim build, this filter set is compatible with just about any imaging system. Whether you plan to utilize a filter drawer, a filter wheel, or a threaded connection directly to your telescope, this filter joins seamlessly. The large surface area ensures pristine quality and even illumination from corner to corner, fully covering full frame sensors.
Premium Construction
Composed of Schott glass, each filter is crafted with the utmost quality in mind. The filter surfaces are multi-coated with ion-assisted deposition technology to ensure scratch resistance while simultaneously providing stability along the central wavelength. Housed within a thin, lightweight, CNC machined metal filter cell, this Optolong filter set provides exceptional durability and precision. Additionally, the surfaces of these filter cells are black anodized for enhanced protection against wear and tear, and sand-blasted and laser engraved for a sleek, polished finish.
Astronomy Hub: Your one-stop-shop for Astrophotography Knowledge!
Our Gear Experts have compiled a wealth of information to help expand your astrophotography knowledge! Below you’ll find links to articles, videos and "how-to" guides. Just one more reason that our Astronomy Hub is a one-stop-shop for all your astronomy and astrophotography needs!
| The Effects of Light Pollution |
| 10 Things You Need to Know About Nebulae |
| Choosing the Best Deep Sky Camera |