Thursday, October 30, 2014

20141030 Moon

The moon is in front of my windows.

Aligned my C5 on the Nexstar mount, I found millions of drop frames... reboot does not help, replacing the USB cable does not help.  Eventually, the camera even black out....

So I pulled out my 450D, but then the balancing becomes an issue... tracking is inaccurate, and the mirror induced much shake to the system.  It's still alright at prime focus but then when I just up with a 2x, the 450D rotates around its adapter nose piece, and the shake is no longer trivial at 1/10s exposure even with a shutter release cable.

I disassembled the Lu055M and I guess I know what's the problem.  Put it back and it works again but then the moon is sinking quite low and cloud rolling in too!

First up is a moon taken with my Canon 450D through my C5, live view focus, manual exposure (a bit over), taken with a shutter release:-

This is my Lu055M being repaired:-

Next is another prime focus shot taken with my Lu055M, notice that this 1/3" CCD rendered a much higher resolution than the APS-C sized CMOS even both were taken at 1250mm focal length:-

Without much time left, I took another shot with a 2x barlows with my Lu055M:-

It seems like that Lu055M is dying?  Before its death, I will make good use of it!

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