Q1: Does this work with the Celestron Powerseeker 127 EQ Telescope?
A: Yes, you can use this in conjunction with your telescope for astrophotography with your compact camera.
Q2: How can i take pictures that i see through my dobsonian telescope?
A: It's pretty tough to take pictures through a Dobsonian telescope. The scope's altazimuth mount and lack of an automated tracking device put long-exposure astrophotography out of reach. With a device like the Zhumell Universal T-Adapter and a T-ring made specifically for your brand of camera (plus the camera, of course), you might be able to snap a picture or two, but you'd have to point the scope first, take the eyepiece out, slip in the T-adapter/t-ring and camera, then shoot. It'd be almost impossible not to move the scope in the process, ruining your picture. One thing you COULD do is utilize a device like the Zhumell Digital Eyepiece. It would transmit what the scope "sees" to a laptop or PC, where it could be stored as still images or captured as live video. Here's the URL for the Digital Eyepiece; just paste it into your browser's address window: http://telescopes.com/products/zhumell-1-25in-digital-eyepiece-super-sale-closeout-32584.html.
Q3: What size camera will work with this mount?
A: Any small/medium sized digital camera will connect to this mount, allowing you to focus it into your telescope.
Q4: Will this work with my Canon PowerShot A480?
A: Yes, you'll be able to connect your Canon PowerShot A480 to this adapter.