1.) Application: What do you want to pick up?
The first important criterion to choose a suitable microphone is the application. Are you speaking, singing or playing an instrument? Dynamic microphones are generally preferred for loud voices, amplified guitars or drums. Condenser microphones provide a more natural, detailed sound and are therefore the better choice for acoustic instruments such as guitars, brass and overheads with drums or delicate voices.
Especially in studios a more natural sound reproduction is desired, which makes the condensers more suitable in recording applications. If a condenser microphone is your first choice, remember that your mixer must be able to supply phantom power to the microphone or you need to buy a condenser microphone that uses batteries to supply the condenser element power.