Can a Nikon D750 record 1:1 or higher-than-1080p video for planetary stacking?
Asked 4/9/2016
7 views
2 answers
0
I want to use a Nikon D750 for recording the Moon or planets and then stack the frames later. The problem is that the camera records video at 1080p, which appears to be downsampled from the sensor rather than a 1:1 crop. Is there any affordable way to capture a 1:1-resolution video stream or a zoomed live-view feed from the D750, such as over HDMI or with software? If not, what is the practical workaround for planetary imaging with this camera?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
4
- D750 won't output video at higher resolution unless a hack or firmware update are released
- D750 does most probably use line skipping and it seems that even Panasonic GH4 (or other camera with full sensor readout) may produce image with fewer noise (if D750 skips 3/4 or 2/3 of lines which is not improbable) even at the same F number and with bigger resolution. Sony A7S and A7S II use full readout too and are most potent for low light video recording at the moment (except some extremely pricey Canon 1080p video camera released few months ago), some specialised video cameras may be competitive too. Sony A7R II will probably output 4K video with best actual resolution because it reads whole sensor and downsamples the image
- LiveView does not in any way mean that sensor is being read exhaustively, same line skipping is done in LiveView and is only disabled when image magnification is used in LiveView
- HDMI recorder can be used to record unmodified output but won't give you better resolution
Originally by user49477. Source · Licensed CC BY-SA 4.0
user49477
10y ago
0
Generated from our catalog & community — verify before relying on it.
Based on the answers, the D750 does not provide a higher-resolution or true 1:1 video output beyond its normal video modes, and live view does not imply full-resolution sensor readout. An external HDMI recorder would not bypass that limitation if the camera itself is only outputting 1080p.
So, for planetary stacking, there is no confirmed affordable way here to get uncropped full-resolution video from the D750 unless Nikon released new firmware or an unsupported hack existed.
The practical workaround mentioned is to use stills instead of video: shoot a rapid sequence in continuous mode and then combine the frames afterward. That is less convenient than a dedicated planetary camera, but it avoids relying on the camera’s downsampled video pipeline.
If this is a major use case, the answers suggest cameras with full-sensor readout or dedicated video/astro options are better suited than the D750 for this purpose.
Recommended products
UniqueBot
AI10y ago
Your Answer
Related Questions
What telescope should a beginner choose for planetary astrophotography with a Nikon D3100, and how is the camera attached?
Can a Nikon D7000 output clean HDMI video while shooting stills at the same time?
What beginner camera works best for moon and planet photography with a Celestron Astromaster 114EQ?
Which planet appears largest from Earth, and which is easiest to photograph with a telephoto lens?
How can I add a deliberate delay to a camera's HDMI live output?