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Astrophotography Filters

light pollution filters

10 Light Pollution Filters for Astrophotography in the City

If you shoot your astrophotography images with a color camera in the city, there is a good chance that light pollution filters can make your life a little easier. How? By ignoring specific wavelengths of light in the visible spectrum associated with artificial light sources such as a streetlamp. The best way to test if a particular filter is a good fit for your skies is to review examples taken by others from similar conditions.  A quality light pollution filter will allow the important colors and light emitted by your astrophotography subject to reach the camera sensor, without th…

Canon DSLR Ha Filter

Use a DSLR Ha Filter for Astrophotography

|H-Alpha|20 Comments

After almost a decade of taking pictures of space with a DSLR camera, I have come to the realization that a DSLR Ha filter is quite possibly the most important astrophotography filter in your kit. Traditional light pollution filters designed to help you photograph deep sky objects in broadband (true-color) are useful, but a hydrogen-alpha filter makes the single greatest impact on your astrophotography overall. Beginners often ask me which narrowband filter (line filter) I recommend buying first, and it's always a Ha (or "Hα") filter. H-alpha is a specific deep-red visible spectral line wi…

The Impressive Optolong L-eNhance Filter

In this post, I'll share my results using the Optolong L-eNhance filter for deep sky astrophotography in the city. The L-eNhance is a dual band pass filter that ignores artificial light, yet collects a strong signal emitted by certain nebulae. This light pollution filter was designed for color cameras, whether it's a DSLR (a modified camera is best) or a one-shot-color dedicated astronomy camera like the one used (ASI294MC Pro) for the images in this post. As many of you know, I mostly shoot from the city. I love to travel to dark sky locations, but imaging from home is a lot more practi…

Optolong L-Pro filter review

Optolong L-Pro Filter Review

|Star Clusters|14 Comments

I’ve recently had a chance to review the Optolong L-Pro filter (2 types) for astrophotography from my light-polluted backyard in the city. Unlike many of the filters I used in the past, the L-Pro is suitable for both stock and astro-modified DSLR cameras. (It includes a UV/IR block). I've always had trouble collecting images with an accurate representation of star color when imaging from the city. It's something I spend a lot of time correcting during the image-processing stage of my projects. My hope is that the Optolong L-Pro filter lives up to its description of allowing more starlight…

light pollution

Deep Sky Astrophotography in Light Pollution

|Nebulae|10 Comments

If you’ve been following AstroBackyard on YouTube, you’ll know that I regularly shoot DSLR astrophotography images under the heavily light polluted skies at home. My night sky is classified as Bortle Class 8 in terms of sky quality, a white zone on the light pollution map. This certainly makes things more difficult in terms of collecting data and image processing, but I welcome the challenge. It’s true, there is no substitute for dark skies. But being able to set up a portable astrophotography kit in the backyard on a weeknight is pretty cool. I don't have to pack up heavy gear i…