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I hate photography failures
Jul. 26th, 2017 09:49 amSo I'm at the observatory last night, it's the third night of my wife's four night shift, and for once, the weather looks really good: we've had a storm cell parked on top of the mountain for a couple of weeks. I set up my camera on the floor in front of the telescope, check all the settings, all looks well. Empty memory card, I'd topped-off the battery before I left home, camera settings were where I wanted them. My wife told me that the observer was watching just a single target, so I wouldn't get much in the way of star streaks, but that was OK - it was more of an experiment to see what it would look like. I started the external timer firing once a second, she turned off the lights, opened the dome, and we went downstairs to the control room for a few hours.
I knew the camera battery was good for about 4.5 hours in colder conditions, and I started it shooting at about 20:00, just before sundown, so I kind of expected it to still be firing when I went back up about three hours later. No visible red LED on the camera. Maybe it was between exposures. Get down to the floor of the telescope: nope, it was dead. So take it off the tripod, sling it over my shoulder, grab my tripod and head back downstairs.
I figured the battery was dead and I had a card full of images to look at. I did stop to look out the telescope slit: absolutely gorgeous night, couldn't have asked for a nicer sky. So down in the control room, just for kicks and giggles, I try to turn the camera on. And it turns on. And shows a battery just under completely full.
Hit the button to playback images. It took 240 images before stopping. A whopping five minutes of exposures. Didn't even get past sundown, which would have been nice to have the sky transition. Complete waste of time.
I don't know what happened. Camera battery was fine. Remote timer battery was fine: I replaced it with a new battery after I got it (I bought a used unit). 32 gig memory card was empty and freshly formatted when I started the night. The camera was set to turn itself off after two minutes, but the timer was tripping it once a second, so the auto power-off should never have triggered.
*sigh*
We did have a good time, chatting with people in the control room. Another astronomer from the other telescope had just returned from eight days in Japan, visiting her aunt and cousins. Had wonderful stories, especially about toilets, TV, and scarily-expensive coffee. Talking to their computer guy about a switch that had confused itself about its IP address and he couldn't find it on the network. I suggested trying to find its MAC address, but that didn't work. We talked about the summer shutdown when they do heavy maintenance on the telescopes: the 2.5 meter mirror is about to get crated up and trucked to Tucson for its annual re-aluminaization, and it's possible the 3.5 will get redone this year even though it was done only two years ago.
And, of course, playing with the poodles, talking about Gay of Thrones (Funny or Die recap of the HBO series) and Orphan Black.
I knew the camera battery was good for about 4.5 hours in colder conditions, and I started it shooting at about 20:00, just before sundown, so I kind of expected it to still be firing when I went back up about three hours later. No visible red LED on the camera. Maybe it was between exposures. Get down to the floor of the telescope: nope, it was dead. So take it off the tripod, sling it over my shoulder, grab my tripod and head back downstairs.
I figured the battery was dead and I had a card full of images to look at. I did stop to look out the telescope slit: absolutely gorgeous night, couldn't have asked for a nicer sky. So down in the control room, just for kicks and giggles, I try to turn the camera on. And it turns on. And shows a battery just under completely full.
Hit the button to playback images. It took 240 images before stopping. A whopping five minutes of exposures. Didn't even get past sundown, which would have been nice to have the sky transition. Complete waste of time.
I don't know what happened. Camera battery was fine. Remote timer battery was fine: I replaced it with a new battery after I got it (I bought a used unit). 32 gig memory card was empty and freshly formatted when I started the night. The camera was set to turn itself off after two minutes, but the timer was tripping it once a second, so the auto power-off should never have triggered.
*sigh*
We did have a good time, chatting with people in the control room. Another astronomer from the other telescope had just returned from eight days in Japan, visiting her aunt and cousins. Had wonderful stories, especially about toilets, TV, and scarily-expensive coffee. Talking to their computer guy about a switch that had confused itself about its IP address and he couldn't find it on the network. I suggested trying to find its MAC address, but that didn't work. We talked about the summer shutdown when they do heavy maintenance on the telescopes: the 2.5 meter mirror is about to get crated up and trucked to Tucson for its annual re-aluminaization, and it's possible the 3.5 will get redone this year even though it was done only two years ago.
And, of course, playing with the poodles, talking about Gay of Thrones (Funny or Die recap of the HBO series) and Orphan Black.
