This is for when you use adjustable filters such graduated or variable ND on the front of your lens. The removable section allows you to rotate the filter while the hood is still attached.
First Anwser: No, because there is no removable lens on the SX30 it is not classified as a D-SLR.a Finay Balfour: Actually, a few Bridge cameras have removable lenses, but that doesn't make it as DSLR. DSLR stands for "Digital Single Lens Reflex", which means that it has a mirror which bounces the view from the lens to the viewfinder, and locks up when you want to take the picture, and that makes the clonking sound widely related to DSLR cameras. So, to conclude, no, the powershot is not a DSLR, because it does not have a Single Lens Reflex mirror lock up system.
Both. Depends on how old the camera is. DSLR is just a digital version of an SLR (single-lens reflex), which are the cameras with removable lenses.
DSLR is an abbreviation, therefore has no abbreviation DSLR stands for "Digital Single-Lens Reflex"
What do you mean? It is a DSLR camera, not a lens.
Lens
That depends on the lens that is mounted on the Sony A33 DSLR.
no it is a DSLR a SLR is a Single Lens Reflex camrea that acceps film and a DSLR is a Digital Single Lens Reflex camrea that is digital
As you probably have guessed, the term 'DSLR' is an abbreviation. Digital Single Lens Reflex is the full term. In most cameras, there is a mirror inside. That's basically what it means, though I do think this answer requires an edit.
There are several different versions of DSLR cameras on the market. They are interchangeable-lens, fixed lens, and SLR-style. The lens is what really matters so it is wise to invest in great lenses.
NO. The lens is required to focus the image on the CCD sensor.
Digital Single Lens Reflex
No, you need to have a DSLR to do that.