yes, saudara redzuan's method is the correct and recommended method to kick off astrophotography. Cost to start up is nil. You need your kit lense (18mm -55mm) and your DSLR and a dark site and then follow these instructions:
click
disini and click on the four pictures therein.
You will learn
Image acquistion1. How to use your camera and how to change its settings like ISO etc in the dark.
2. how to focus
3. how to frame and compose with no upside down(refractors) and laterally inverted images(newtonians) to confuse you.
4. Camera battery conservation
5. The importance of not losing your night vision.
6. How precious it is with no interference from green laser pointer(s).
7. when to use and not to use the inbuilt camera noise reduction
items you take for granted in the daytime photography.
Image processingHow to do basic digital image processing such as changing levels, brightness and contrast , colour balance etc.
Call it
ASTROPHOTOGRAPHY 101 if you like.
In fact samir kharusi's website touches/introduces the next part of ASTROPHOTOGRAPHY using tripod and stacking multiples images of the same object..
Then later buy the mounts and long focal length refractors and newtonians and SCTs and tie yourself in knots with polar(drift) alignment, balancing, aligning gotos, reading star charts, getting the guide scope working and so on and spending 3 or more hours capturing lights, darks, bias, flats and wondering why the result it is not the same as those in the magazines.
Pursue further only if you like to berembun and beware unlike observing Astophotography is anti social.
cheers