Friday, May 22, 2020

tried workspace long-exposure

I want to try an interesting "workspace" photo, with star trails above the hedge, and the red lights moving about with me working. Trails / long exposure / time lapse.

Considered the exposure settings from the January southern sky. Doubled the ISO so I could halve the exposure time so to get more shots... 15 seconds?

9:09 PM EDT, Thursday 21 May 2020. First test shot.

Programmed the camera and intervalometer. ISO 1600, 20 second exposure with a 2 second gap. Stopped down to f/7.1. That might be too much. We'll see...

9:22 PM. Focusing. Oh my. After removing the filter, I put the lens at infinity and then wound back a pit. Test shot of a bright star. Tweaked it a little.

Set all that up before I brought the telescope gear from the "airlock" to the backyard. Used the Manfrotto tripod in the west side of the yard. Used the kit lens, set at 18mm, manually focused. AC power from the house.

A solitary bat flew about.

9:40. Once the photo rig was ready, then I set up the telescope gear.

A little after 10, it was clickin' away.

10:45. Rhonda came out.

She asked about the camera. Explained what I was trying to do. She did a rude gesture. Gave her my deep red flashlight and encouraged her to try light-writing. Backwards. Or a star. Moons, clovers! Gave her hints on writing. Helped her with the timing.

She had a go, giggling mischievously. Evil laugh. I would have to wait and see what she did...

1:35 AM EDT, Friday 22 May 2020. Remembered that I need a couple of those lanyards with the clip. I could have worn my flashlight... for the time lapse.

61 Cygni was great.

2:00. Decided to conclude my visual observing. Tore down and put everything away.

2:19. Checked on the camera. Everything seemed to be working fine.

I capped the lens to shoot darks.

2:25. After getting on the telescope gear inside, I went outside to shutdown the camera rig.

2:35. Back inside.

No comments: