Does photography only exist when a DSLR camera is used in taking pictures?

No. You can use any type of camera. Digital, Digital SLR, film SLR, film, polaroid, etc.

Photography is the process, activity and art of creating still or moving pictures by recording radiation on a radiation-sensitive medium, such as a photographic film, or an electronic sensor.
 
Only if you're being elitist. And shortsighted.
If you think this then you've obviously never heard of medium or large format cameras.
 
No.

Any image created by light is a photograph.

The box is irrelevant to the definition. You can do photography with a matchbox pinhole camera to a Holga to a Canon EOS-1ds Mark III.
 
Back
Top