The Canon EOS 77Da, modified for astrophotography, features a fourfold increase in H-alpha sensitivity compared to its original state.
This camera captures significantly more Hα light, making it ideal for photographing diffuse nebulae, red hydrogen nebulae, and faint emission regions of the night sky.
Compared to an unmodified camera, significantly shorter exposure times are possible. This allows for many more individual shots to be taken in a single night, which are later used for the stacking process. Fine nebula details and faint deep-sky structures become visible, which would remain hidden with a standard camera.
The modification makes this camera ideal for deep-sky imaging, Milky Way photography, and long-exposure astronomical photography.
This camera was professionally modified in our workshops by experienced photo specialists with years of expertise in astronomical camera modifications, as well as camera and lens repairs.
Since 2012, our workshops have modified well over 1,000 cameras for astro and full-spectrum photography. Our experience and precise execution make every modified camera a high-quality tool for demanding astrophotography. This camera has been carefully adjusted to preserve autofocus, infinity focus, and sensor cleaning.
You receive a professionally optimized astro camera with which red nebula structures of the night sky finally become visible.
Canon EOS 77Da – Special Features
The Canon EOS 77Da stands out for its particularly compact design, making it ideal for astrophotography and smaller telescope setups. Weighing just 493g, it places significantly less strain on mounts compared to larger DSLR models. The Canon EOS 77D features a modern 24.2-megapixel sensor with high detail resolution and improved noise performance. The DIGIC 7 processor ensures excellent low-light performance for long-exposure astronomical photography. Particularly practical for astrophotography is the vari-angle display, which can be rotated and swiveled, enabling comfortable work at the telescope. This makes the EOS 77Da perfect for shots in difficult positions. The touchscreen allows for easy control of the focus point, zoom view, and menus—an advantage for night photography. Thanks to built-in Wi-Fi, the Canon EOS 77D can be conveniently controlled wirelessly via smartphone or tablet, ideal for vibration-free long exposures. Live View, focus, and shutter release can be comfortably controlled remotely. At the same time, the EOS 77Da is one of the most affordable entry-level cameras for deep-sky astrophotography.
In the exploded view diagram, item no. 2 shows the IR/UV block filter, which is removed during modification, increasing the H-alpha sensitivity (hydrogen line at 656 nm) fourfold (the sulfur line SII at 672 nm even sevenfold).
Technical Note
In astro-modified cameras, autofocus and infinity focus continue to work as in the original model. The sensor (3) is protected by the top filter (1), and sensor cleaning remains functional.
This camera can also be used for daylight photography. Included in the delivery is an OWB (Original White Balance) clip filter for Canon EF lenses, which allows for natural color reproduction similar to an unmodified Canon camera. The filter holder contains the UV/IR block filter (2), which was previously removed during modification. Canon EF-S lenses are not compatible with this filter holder because, by design, they extend too far into the camera body. However, Canon EF lenses and numerous third-party lenses from manufacturers like Sigma, Tamron, or Samyang can still be used.
Scope of Delivery
- Canon EOS 77Da body
- Original Canon LC-E17 charger
- LP-E17 battery
- USB cable
- OWB (Original White Balance) clip filter
Sensor size: APS-C 22.3 mm × 14.9 mm
Resolution: 24.2 megapixels
Image size: 6,000 × 4,000 pixels
Condition / Warranty / Legal
The camera is in good optical condition and technically 100% flawless. The latest firmware has been installed in the camera. We provide a 2-year warranty on this camera.
The photos shown are example images. We do not use retouched product photos, and these show real devices from our inventory. Cleanliness and a well-maintained optical condition are important to us. Therefore, every camera is cleaned after modification. Although these are used cameras, many of our customers are positively surprised by their optical condition—which is reflected in the reviews.
The sale is subject to §25a UStG (differential taxation). Therefore, it is not possible to separately itemize VAT on the invoice.
