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glatt · 10-27-2014, 01:51 PM

I learned the rocket will reach a height of 12 degrees above the horizon at my location, so I can definitely zoom in too far so that it flies out of frame. I'll have to eyeball it with my fist as a 10 degrees representation. That will tell me how far to zoom in.

I went back to a star shot I took at Bryce canyon and that was ISO 80 at f/2.8 for 60 seconds. It made stars nicely exposed, and this rocket will be brighter than stars, so I think that same exposure will do nicely.

Now my only concern is when exactly liftoff is. They keep saying it's at 6:45. But I want to know if that means 6:45:00 or if it's more like 6:45:25. I want to start my 60 second exposure just before the rocket comes in to view, which is T+96 seconds where I am.

I imagine I'll just wait until I first see it and then press the shutter button. I wonder if it's worse to jiggle to camera a little bit pressing the shutter button, or not jiggle the camera by using the 2 second timer but then miss 2 seconds of the visible liftoff.

I think I'll just try to press the shutter button gently.

10-27-2014, 01:51 PM	#5
glatt ™ Join Date: Jul 2003 Location: Arlington, VA Posts: 27,717	I learned the rocket will reach a height of 12 degrees above the horizon at my location, so I can definitely zoom in too far so that it flies out of frame. I'll have to eyeball it with my fist as a 10 degrees representation. That will tell me how far to zoom in. I went back to a star shot I took at Bryce canyon and that was ISO 80 at f/2.8 for 60 seconds. It made stars nicely exposed, and this rocket will be brighter than stars, so I think that same exposure will do nicely. Now my only concern is when exactly liftoff is. They keep saying it's at 6:45. But I want to know if that means 6:45:00 or if it's more like 6:45:25. I want to start my 60 second exposure just before the rocket comes in to view, which is T+96 seconds where I am. I imagine I'll just wait until I first see it and then press the shutter button. I wonder if it's worse to jiggle to camera a little bit pressing the shutter button, or not jiggle the camera by using the 2 second timer but then miss 2 seconds of the visible liftoff. I think I'll just try to press the shutter button gently.