Optolong UV-IR Cut 2" Mounted Filter
Optolong UV-IR Cut Filter - 2"
If you're looking to improve the quality of your astrophotography images, the Optolong UV-IR cut filter is exactly what you need! When you block Ultraviolet and Infrared transmissions, you will see improved image sharpness, contrast, and minimized distortion from color fringing. They're especially useful when you're not using a dedicated astronomy camera with built-in filtering.
The Optolong UV-IR cut filter blocks Ultraviolet and Infrared transmissions while letting the visible spectral region shine through, which reduces pesky violet star halos! Star halos are often caused by IR and UV light being slightly out of focus; this "unfocused glow" creates a halo around bright stars. When this transmission is reduced, you will see that overall, soft images are a thing of the past. This filter ensures only well-focused visible light reaches the sensor, resulting in tighter, sharper stars. By filtering out just the UV-IR region, you will see that this broadband filter is extremely versatile. You are sure to capture pristine images of Galaxies, Star Clusters, and Reflection nebulae! This filter is not ideal for emission nebulae, you will want to use a dedicated narrowband filter to isolate individual emission lines. With Optolong, you can expect exceptional performance, allowing urban stargazers the chance to witness vibrant, breathtaking details of the night sky! The Optolong UV/IR cut filter blocks Ultraviolet and Infrared transmissions but lets the visible spectral region shine through. The IR (700nm to 1100nm) and UV (300nm - 400nm) part of the spectrum are invisible to human eyes, but not to most CCD and other digital cameras, which are sensitive to 300nm to 1100nm. With the Optolong UV-IR Cut filter installed, violet halos and an overall soft image are a thing of the past. This filter also reflects heat radiation and provides great protection against dust. With the ingenuity from Optolong, you can expect exceptional performance, allowing urban stargazers the chance to witness vibrant, breathtaking details of the night sky!
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
By cutting transmissions from Ultraviolet and Infrared, this Optolong filter helps level up your astronomy sessions. Whether utilizing for visual observing or for astrophotography, this high-quality filter helps enhance contrast and reducing star halos on most deep sky objects. Read on as we delve deeper into the incredible features of this Optolong UV-IR Cut Filter!
See Clearly!
As opposed to harsh narrowband filters that cut out an excessive amount of
light, this Optolong UV-IR cut filter blocks infrared (700–1100nm) and
ultraviolet (300–400nm) wavelengths. While these parts of the spectrum are
invisible to the human eye, most CCD and other digital cameras are sensitive
to them, ranging from 300nm to 1100nm. Suitable for reflection nebulae,
galaxies, and star clusters, this Optolong filter provides a wide variety of
imaging opportunities. You will see breathtaking clarity from deep space
objects like the Hercules and Pleiades Star Clusters. No matter what you
choose to image or observe, the Optolong UV-IR cut filter is a perfect
addition to your astrophotography setup!
Effortless Compatibility
This Optolong filter is 2” in diameter, providing consistent, edge-to-edge
illumination across full-frame sensors and large 2” eyepieces. It’s housed
within a filter cell with M48 x 0.75 threads for seamless integration into
your filter drawer, filter wheel, or a direct connection to your telescope
or eyepiece. This design makes it compatible with just about any system,
offering ease of installation and providing a secure, stable fit.
Premium Construction
Composed of Schott B260 substrate from Germany and featuring multiple layers
of anti-reflection, non-cementing coatings, this Optolong UV-IR cut offers
outstanding performance. These coatings are applied via electron-beam gun
evaporation with Ion-assisted deposition, providing high transmission at the
major nebula emission lines while efficiently blocking off-band wavelengths.
The high surface quality of 60/40 ensures pristine views and images, while
the CNC-machined, all-metal filter cell provides exceptional durability. The
surface of this filter cell is black anodized and includes laser engraving
to prevent fading. The included plastic case with high-pressure EVA lining
protects your filter when not in use.