The Museum Learn Tools Blog

Camera Basics

How cameras work — DSLRs and mirrorless, image sensors and megapixels, crop factor, memory cards, and RAW vs JPEG.

Camera

Digital single-lens reflex camera

Digital single-lens reflex camera

Mirrorless camera

Mirrorless camera

Megapixel

Crop factor

Viewfinder

Memory card

SD card

Camera phone

Instant camera

Instant camera

CAMEROLL

Photography guides, camera tips, and the calculators behind every great shot.

Get new guides by emailOccasional emails. No spam. Unsubscribe anytime.

InformationAbout Contact Privacy Policy Terms of Service Disclaimer Affiliate Disclosure Cookie Policy

Every species, image, fact, and figure is drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses. No content is AI-generated.

© 2026 CameRollMade for photographers — camera guides, photography tips, and shooting calculators