myyorgda 2:48pm, 18 September 2009
I'm wondering about what you use for tracking.

I personaly use a barn-door with two heads on it, one for DSLR and the second for a Digicam that I set to a bright star. Then I use the computer screen and the mouse in order to manually keep the said star right under the mouse during the whole photography process.

now, each of you have it's solutions, can you describe them a little bit ?
jim420l 9 years ago
My way is much more basic but I really like your technique. I have a small wire attached to my to my drive screw and a small clock attached to my mount under it and simply match the turning of the screw to the movement of the second hand. I think I might try your idea as it seems like it would be much more accurate
tbird0322 PRO 9 years ago
I also follow a second hand around manually. When using a lens of 50mm or shorter, I only make corrections every 15 seconds.
ranaadnanm 8 years ago
Since I was unable to salvage much parts needed. I have screwed a round lid from a jar of peanuts at one end of the threaded rod, with a printed clockface taped firmly onto it. Use a 15 minute recording on my mobile phone, of a ticking clock to guide me. Some glow in the dark paint for the clock face is also a good choice, if your location is really really dark for you to see anything at all. I place a 1mw green laser on the hinge for polar alignment which is really really accurate, helping me to acheive exposure of upto ten minutes without any trailing (18mm). Since I use a cheap laser, it stops if exposed to cold temperatures for a minute or so. Which means, I've to put it back straight in my pocket to atleast keep it near body temperature. The only trails I get are due to my tripod wobbling, since the weight is a bit too much for it to handle, but even that isn't noticeable unless the image is viewed at fullsize. And to be honest, I have never seen anyone, who is worse than me at DIY.
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