H-alpha modification

Reveal The Hidden Light!

To perform this conversion, Canon cameras are distinctively modified to allow H-alpha light to pass to the sensor. With this modification your camera can start shooting extraordinary photographs of distant galaxies and nebulae like it never has before.

The Cygnus Wall. H-alpha modified Canon 60D.

By default, Canon cameras come equipped with two internal filters that intercept light nonvisible to the human eye. Although this is useful and beneficial for everyday photography, it also prohibits taking pictures in other light ranges like ultraviolet, H-alpha, and infrared.

Filter arrangement of a Canon sensor.

Fortunately for those wishing to shoot the aforementioned types of images, it is still possible to convert certain cameras to overcome the challenge posed by the pre-installed filters.

Applying our expert knowledge and experience, we at Night Sky Camera have developed our own unique system to modify cameras to a specific configuration. Our method is effective, reasonably priced, and, most importantly, reliable.

To convert a Canon camera, we begin by carefully disassembling the camera body to reveal major internal components and make them accessible for extraction.

Internal components of a disassembled Canon camera.

Next, the low pass filter 2 (LPF2), a component which is responsible for blocking out H-alpha light waves, is removed. To compensate for the removal of the LPF2, it is then necessary to precisely calibrate the camera sensor by adjusting its position so that the internal autofocus system may work properly.

In this arrangement, the low pass filter 1 or LPF1 is retained and simultaneously serves as an ultraviolet and infrared cut filter as well as the built-in dust removal device.

Finally, the camera body is reassembled and extensively tested to guarantee the product upholds our company’s quality standard and ensure the new configuration will continue functioning. At this point, new light can effortlessly make its way to the sensor and your camera will be ready for whatever new adventures you have planned for it.