Quote:
Originally Posted by Hzadbhat
I've got the Black diamond, and I love it!
But I don't take photo's. When I start to get into that, I'll be getting a new scope and mount. You want to be able to track for photography.
My research has shown the goto dob isn't all it's reviews say. That's if you're putting a camera on.
You can get the collapsable and have years of fun.
I'm keeping the dob as a visual scope and later this year or maybe early next, I'll buy a dedicated photo rig.
If you're sure photography is where you want to be, then 'goto', otherwise, you will not regret your decision to dob.
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Brandon is only partly correct when he says that you need to be able to track to image. Tracking is the act of keeping an object within the field, and go to dobs if they are setup properly do a good job of this. The issue with imaging is that 2 further steps are required. Firstly for long exposure images, the axis of rotation must be aligned with the pole which requires an equatorial mount and a dob is a simple Alt Az mount. Secondly, as well as tracking, the mount will need guiding. Even the best made mounts will have residual errors that need to be corrected continuously during long exposures, usually by tracking a star with and auto guider mounted off axis or an a second guide scope.
Dobs can be used to take short exposures of bright objects but that is about it.
Malcolm