Sony camera model numbers explained through alphanumeric naming schemes
Sony has clarified its confusing digital camera model numbering system to help buyers distinguish between mirrorless and compact devices.

Mirrorless cameras use interchangeable lenses
The company divides its lineup into two main categories based on lens type. Full-frame models carry the Greek alpha symbol prefix while cropped-frame versions follow a similar pattern. Both groups feature electronic viewfinders and rear displays for viewing images.
Compact models have fixed lenses
Smaller devices in the range include letter suffixes like C, R, or S alongside roman numerals. Some units start with RX or ZV instead of the standard A prefix. These compact cameras differ from mirrorless types by lacking interchangeable lens options.
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