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Review Summary
2021-06-13T08:49:06
Bought this especially to ease focusing on stars. Exceeds expectations. Tip- ?optical? eyepiece shows stars even better than the live view screen.
JONATHAN A.
2021-04-15T08:18:11
Great rig for Astro photography!
Robert L.
2021-04-15T08:17:26
Great set up for astro photography !
Robert L.
2021-01-21T08:30:13
Great camera. Once the price is the same everywhere, Adorama was a slam dunk with all the free software and battery. Only downside is despite express shipping it does a day or two to get an order out the door and in the hands of a shipper. Customer service is prompt so no big issues. Images far better than expected after using my D80 for 3 years. With my 140 refractor need minimal if any post processing. Crisp images, and the selective filter gives fantastic deep sky images of nebulae. Only down side is despite being set as the default screen the fold out screen keeps toggling on and off without apparent reason. Would otherwise give it 5 stars. Camera has a nice feel, intuitive controls, shot for 6 hours with one battery. Nice addition but I think my ZWO is going to gather dust as this makes the process so much easier.
WAYNE H.
2020-12-25T13:23:06
Great addition to our astrophotography armamentarium. Improves our image clarity on deep space photos.
Chad M.
2020-06-24T14:47:54
A fantastic purchasing experience with Adorama and one amazing astrophotography camera!
Drew E.
2020-05-24T20:00:00
I have this amazing Canon camera about two weeks ago, But I took only a few images for 3 nights with clear skies since then, the quality of those few pictures overpassed my expectations.
Hercs A.

2019-12-29T09:20:30
great camera & perfect size
Joseph M.
2019-12-26T09:16:16
Guoqing, are you seriously giving it a 1 star because of your mistake? Canon makes it pretty clear that this camera is not for regular use, and they advertised the 60Da and 20Da the exact same way. Just like the 60Da, this is a phenomenal camera for its intended use and may or may not be usable for regular use. For me I have found that it works well for regular day use, just like the 60Da. Haven't had the opportunity to use it for astrophotography yet, but from my 7 years experience with the 60Da, I'm assuming it will work even better. Do more research before investing in a camera. It is not Canon's fault that you made the mistake of purchasing an astrophotography camera for regular use when they specifically advertise the "a" lineup as an astrophotography camera. For me, this already feels like a good investment and upgrade from the a7s and 60Da.
Ben B.
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Canon RF
Full-Frame (1x Crop Factor)
Actual: 31.7 Megapixel
Effective: 30.3 Megapixel
6720 x 4480
1:1, 3:2, 4:3, 16:9
CMOS
36 x 24 mm
JPEG, RAW
14-Bit
Digital, 5-Axis (Video Only)
Auto, 100 to 40000 (Extended: 50 to 102400)
Electronic Front Curtain Shutter
1/8000 to 30 Seconds
Bulb Mode
Center-Weighted Average, Evaluative, Partial
Aperture Priority, Manual, Shutter Priority
-3 to +3 EV (1/3, 1/2 EV Steps)
-3 to 20 EV
Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (White), Shade, Tungsten
Up to 8 fps at 30.3 MP for up to 47 Exposures (Raw)
Up to 8 fps at 30.3 MP for up to 100 Exposures (JPEG)
Up to 3 fps at 30.3 MP for up to 47 Exposures (Raw)
Up to 3 fps at 30.3 MP for up to 100 Exposures (JPEG)
Up to 2.2 fps at 30.3 MP for up to 47 Exposures (Raw)
Up to 2.2 fps at 30.3 MP for up to 100 Exposures (JPEG)
2/10-Second Delay
MP4/H.264
UHD 4K (3840 x 2160) at 23.976p/24.00p/25p/29.97p
Full HD (1920 x 1080) at 23.976p/24.00p/25p/29.97p/50p/59.94p
HD (1280 x 720) at 25p/29.97p/50p/59.94p/100p/119.88p
4:2:2 10-Bit
UHD 4K (3840 x 2160)
Up to 29 Minutes, 59 Seconds
NTSC/PAL
Built-In Microphone (Stereo)
External Microphone Input
AAC, Linear PCM (Stereo)
Auto and Manual Focus
Continuous-Servo AF (C), Manual Focus (M), Single-Servo AF (S)
Phase Detection: 5655
-6 to +18 EV
Electronic
0.5"
3,690,000 Dot
23 mm
1
Approx. 0.71x
-4 to +2
3.15"
2,100,000 Dot
Articulating Touchscreen LCD
No
Flash On, Slow Sync
-3 to +3 EV (1/3, 1/2 EV Steps)
eTTL
Hot Shoe
Single Slot: SD/SDHC/SDXC (UHS-II)
3.5mm Microphone, HDMI C (Mini), USB Type-C (USB 3.0)
Wi-Fi
Bluetooth
No
32 to 104 Degree F (0 to 40 Degree C)
0 to 85%
1 x LP-E6N Rechargeable Lithium-Ion, 7.2 VDC, 1865 mAh
5.3 x 3.9 x 3.3" (135.8 x 98.3 x 84.4mm)
1.45 lb (660g) (Body with Battery and Memory)
192223137424










Research what you're buying!
By Ben B.
Guoqing, are you seriously giving it a 1 star because of your mistake? Canon makes it pretty clear that this camera is not for regular use, and they advertised the 60Da and 20Da the exact same way. Just like the 60Da, this is a phenomenal camera for its intended use and may or may not be usable for regular use. For me I have found that it works well for regular day use, just like the 60Da. Haven't had the opportunity to use it for astrophotography yet, but from my 7 years experience with ...
View full Review
Canon EOS Ra
By Joseph M.
great camera & perfect size
Capture the intricacies of a starry night sky with the new EOS Ra camera Canon's first full-frame mirrorless camera dedicated to deep sky and night sky photography. Building on the success of the EOS R, the EOS Ra offers 30x magnification in Live View shooting for more accurate focus and roughly 4x more transmission sensitivity of hydrogen-alpha (H ) rays (656nm) for more vivid, deep-red hues of nebulae, making it ideal for astrophotography enthusiasts. Sharing many of the same advanced features of the EOS R, including a 30.3 megapixel CMOS sensor, a high-precision electronic viewfinder (EVF) and Dual Pixel CMOS AF with 5,655 manually selectable AF positions*, the EOS Ra is capable of capturing and pinpointing dim stars that are difficult to see with the naked eye. A Vari-angle LCD touchscreen allows for comfortable composition at any angle and easier framing when shooting vertically, especially when the camera is mounted to a telescope. Featuring 4K time-lapse capabilities, along with high ISO performance, the movement of stars across the night sky can be recorded in brilliant clarity and detail. With a trusted design that's been specifically enhanced for astrophotography, the EOS Ra proves the age-old adage is true: the sky's the limit!
The EOS Ra camera is not recommended for general photography, since the camera cannot achieve normal color balance when shooting subjects that emit or reflect infrared radiation
Modified Filter for Enhanced Night Sky Recording
Positioned in front of the CMOS imaging sensor, The EOS Ra's infrared-cutting filter is modified to permit approximately 4x as much transmission of hydrogen alpha rays at the 656nm wavelength, vs. standard EOS R cameras. This allows for a higher transmission of deep red infrared rays emitted by nebulae, without requiring any other specialized optics or accessories.
54mm Large Diameter and Short Back Focus
The RF mount on the EOS Ra camera has a large, 54mm internal diameter that enables impressive handling and provides increased flexibility for lens design. And thanks to the camera's mirrorless design, the lens's rear element can be much closer to the image plane. This reduced back focus distance, combined with the RF mount's 54mm diameter, helps facilitate lenses of stellar optical quality and stunning performance while enabling innovative compact camera and lens designs
20mm Flange Focal Distance with Robustness for Professional Use
All RF lenses feature a 20mm flange focal distance, which is the distance from the lens mount to the surface of the image sensor. This flange focal distance balances the benefits of short back focus with the engineering requirements necessary for mount stability. Accordingly, the RF mount's flange focal distance ensures excellent optical performance while maintaining the mount rigidity and camera durability necessary for real-world operation.
12 Pins for Quickly Communicating Large Amounts of Information
With a robust 12 pin connection between the camera and the lens, the EOS Ra camera and RF lenses are able to communicate at a higher speed, transmitting a larger amount of data and information for incredibly fast AF, plus enhanced image stabilization and optimization
Variety of Mount Adapter Options for Expanded Compatibility with EF/EF-S Lenses
Mount adapters, such as the Mount Adapter EF-EOS R, deliver seamless connections between the EOS Ra camera and EF and EF-S lenses with all functions intact. Offering L series level weather and dust sealing, the Mount Adapter EF-EOS R is even compatible with EF extenders like the Extender EF 1.4x III to extend your camera's optical reach. With an entire arsenal of EF and EF-S lenses at your disposal, the Mount Adapter EF-EOS R and other mount adapters ensure endless creative possibilities for the EOS Ra camera.
Beyond enabling use of EF and EF-S lenses on the EOS Ra camera, the Control Ring Mount Adapter EF-EOS R and the Drop-in Filter Mount Adapter EF-EOS R add functions that open up a number of new possibilities for creative image capture. The Control Ring Mount Adapter EF-EOS R adds a control ring like those found on RF lenses, providing the same level of control to your EF and EF-S lenses and supporting the same setting configuration regardless of lens. The Drop-in Filter Mount Adapter EF-EOS R enables compatibility with EF and EF-S lenses and includes drop-in filter capability for use with circular polarizing filters or variable ND filters. This enhancement enables compatibility with numerous lenses regardless of their front diameter, and makes filter use possible with lenses like the ultra-wide EF 11-24mm f/4L USM lens or the tilt-shift TS-E 17mm f/4L lens which cannot accept a filter on the front.
30.3 Megapixel Full-frame CMOS Sensor
The EOS Ra is Canon's first astro-dedicated mirrorless camera that features a Canon-developed and produced 35mm full-frame CMOS sensor with approx. 30.3 effective megapixels. It employs the DIGIC 8 Image Processor to enhance the speed of operations across the board. This means fast, efficient performance and phenomenal image quality for big prints, impressive 4K video and more
ISO 40000
The EOS Ra camera has a standard ISO sensitivity range of 100-40000 for stills and 100-25600 for video (100-12800 for 4K video shooting). Combined with the EOSRa camera's remarkable low-light AF performance, still and video shooting is possible even in dark situations in a variety of places and occasions
Digital Lens Optimizer
The EOS Ra camera has an in-camera Digital Lens Optimizer that works with RF lenses (and EF/EF-S lenses with a Mount Adapter) to provide a substantial improvement in image quality. The Digital Lens Optimizer limits deterioration in image quality caused by low-pass filters or wide-aperture lens designs. It is particularly effective at correcting peripheral aberration, providing a high amount of detail for beautifully natural results. It's usable both during shooting and when developing RAW data, and does not affect continuous shooting speeds. Data from compatible EF and EF-S lenses is built into the camera, and data information from RF lenses is transferred near instantly through the EOS R's 12 pin communication system.
High-speed Focusing in Approx. 0.05 sec
The EOS Ra camera's highly responsive Dual Pixel CMOS AF system features an incredible 5,655 manually selectable AF points** and can deliver sharp focus within approximately 0.05 seconds. This means fast action can be captured and focus can be maintained with speed, accuracy and ease.
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