(http://s12.postimg.org/g70iklu0d/milkyway.jpg)
ML Bulb timer (5 min) and intervalometer enabled.
Canon 5d2 with EF 50/F1.4 @ F2.8
5 min and ISO 800 x6, 5min and ISO 400 x2， 5min and F3.5 x2
Tracking with a DIY mount
Quote from: maxchen on June 03, 2014, 04:59:33 AM
(http://s12.postimg.org/syeor43sb/milkyway.jpg)
ML Bulb timer (5 min) and intervalometer enabled.
Canon 5d2 with EF 50/F1.4 @ F2.8
5 min and ISO 800 x6, 5min and ISO 400 x2， 5min and F3.5 x2
Tracking with a DIY mount
The link to the image is broken.
Nice Nice Nice!
Possible for more info on your DIY mount please? :D
Nice one. Yes please. Pointers to the DIY mount would be appreciated.
I'm not the OP, but most DIY star tracking is done in the 'hinge' or 'barndoor' style.
(http://www.astropix.com/BGDA/SAMPLE2/207B.JPG)
Spinning the drive bolt raises/lowers the lens angle. With a bit of math you can time it so 1/2 turn = 1 sec (or whatever you prefer).
Quote from: dsManning on June 15, 2014, 02:56:35 AM
I'm not the OP, but most DIY star tracking is done in the 'hinge' or 'barndoor' style.
(http://www.astropix.com/BGDA/SAMPLE2/207B.JPG)
Spinning the drive bolt raises/lowers the lens angle. With a bit of math you can time it so 1/2 turn = 1 sec (or whatever you prefer).
Thanks! I was thinking stepper motors and electronics :)
This is much more doable.
Thank you dsManning,
I have heard of barndoor styles before and when searching them they looked extremely complicated, the one you have posted looks much more simple and easier to follow, thanks again.
ooo, if possible do you have a design layout for it that I can follow please?
EDIT: Sorry just saw you have measurements on the image.. my bad.
This is my diy mount
(http://maxchen.im/upfiles/diy_mount_1.jpg)
(http://maxchen.im/upfiles/diy_mount_2.jpg)
I modify some second-hand machinery material and design a controler to control the motor
Fixed image links //Audionut.
Change image's url
Quote from: maxchen on June 16, 2014, 03:42:42 AM
This is my diy mount
(http://s30.postimg.org/ucyo0mabz/diy_mount_1.jpg)
(http://s23.postimg.org/bfg25fu6x/diy_mount_2.jpg)
I modify some second-hand machinery material and design a controler to control the motor
Hi, the links to the two images seems to be broken.
Quote from: rpt on June 16, 2014, 01:40:44 PM
Hi, the links to the two images seems to be broken.
What about now? I have changed the url of the images.
Quote from: maxchen on June 17, 2014, 03:33:21 AM
What about now? I have changed the url of the images.
Sorry, no. I picked up the URLs and tried to see them but I get this message: "Safari could not open the page as the server stopped responding".
I can see them using Google Chrome & Safari, i don't recommend using Safari as its rubbish.