Can I do eyepiece projection astrophotography on an dobsonian telescope?

I have an Orion XT8 and was wanting to do a little photography. I have a Nikon 5100 DSLR. I know the dobsonians are not meant for this but I have seem many people have success with non deep space objects. I have also heard that the dobsonian telescope may not accommodate the eyepiece projection method. I was thinking about getting this.http://www.telescope.com/catalog/product.jsp?productId=101417. Do you think that would work or should I be safe and stick to the afocal method by getting this.http://www.telescope.com/catalog/product.jsp?productId=5338

I have taken some really neat pictures of the moon using my Olympus D-545 on my Orion XT8, without a camera adapter. I do have to be careful to place it where won't twist it and where it is convenient to trigger a picture. There's also a problem if I try to zoom; can't zoom or it shuts itself off.

Well, … You can do short exposure astrophotography with a dobsoninan scope of bright objects such as Moon, Jupiter, Saturn, Mars, Venus, Sun (with approved filter only) the Orion Nebula and possibly the Andreomsa Galaxy. I suggest first that you pick up a copy of "Astrophotograpphy for DSLR's - Robert Reeves" before sending money to Orion.

Now, If you're going to do pure eyepiece projection, I do not think that is the right adapter to use. Instead you wand to use the one ion the first source ling below. The adapter you had selected is more for Prime Focus (no eyepiece in the mix). Also to use the adapter you really need a "T-mount ring" to fit your Nikon DSLR. The T-mount Ring screws into the Universal Adapter and you snap the adapter onto your camera just like you were mounting a lense.

OK, So you've go the right adapter now what happens. Well there are two other issues that will occur. 1) there's now extra weight on the scope so the tube will tend to drop more readily. To compensate you may want put some ballast weight on the mirror end of the tube (like a small (non-leaky) back of sand). 2) Focusing will be a big issue. You'll need to center the object in your scope, attach the camera and then adjust the focus before the image drifts out of your field of view (FOV). This will take some practice as i's really easy to bump the scope while attaching the camera. You'll just need to have some patience and practice until you get it right.

Believe me I know what I'm talking about as I own both the Universal adapter and the deluxe steady-pix mount. I also own an 8" dobsoninan scope and an LX200 GOTO scope. It's a lot easier with the LX200 as all I need to worry about is focus.So, I know the pains a dobsoninan owner must go through to get a good shot but it is do able.

BTW, the reason why you can't d long exposure astrophotgraphy is because the scope needs to angled wrt you current latitude else you get star trails in your exposure. You best bet is to look into either an equatorial platform or and banded equatorial mount for your Optical Tube Assembly (OTA)

Good Luck with some patience I know you can be successful.