3 ms·
A 300uS shutter speed seems pretty high for a space based ground imaging camera. Does the LRO actually need a shutter speed that high? I'm surprised it's even c
by MadnessASAP 3y ago
A 300uS shutter speed seems pretty high for a space based ground imaging camera. Does the LRO actually need a shutter speed that high? I'm surprised it's even capable of that.
- passwordoops 3y agoThis article details why they require such a resolution (1). The first few paragraphs talk about elevation, but then they dive onto the topic (1) https://www.lroc.asu.edu/images/379 https://www.lroc.asu.edu/images/379
- perihelions 3y agoWould it be possible to simply tilt the camera at the same apparent rate as the ground is moving? edit: Found that the Apollo panoramic camera used physical motion to balance the apparent motion of their target, https://www.nasa.gov/history/afj/simbaycam/itek-pan-camera.html https://www.nasa.gov/history/afj/simbaycam/itek-pan-camera.h... ("The ITEK Panoramic Camera") - "(2) the gimbal structure assembly, which rocks the roll frame assembly back and forth to provide for the stereo photography and to compensate for the forward motion of the vehicle,"
- yencabulator 3y ago> Would it be possible to simply tilt the camera at the same apparent rate as the ground is moving? Perhaps possible, but would it be lighter, more robust, or cheaper? My understanding is that solid state things are generally much more robust, and in these days of microchips, usually easier to implement.
- Sharlin 3y agoWell, most consumer cameras are capable of 250μs shutter speeds, and prosumer cameras faster than that. And they're not zipping around their subject at several km/s.