Mirrorless cameras are interchangeable-lens digital cameras that do not use a reflex mirror to view the scene. They typically rely on electronic viewfinders or rear screens for composing shots, and they can be smaller and lighter than traditional DSLRs because they eliminate the mirror mechanism. Key points to know about mirrorless cameras:

• What they are: Cameras with interchangeable lenses that omit the reflex mirror found in DSLRs. They use an electronic viewfinder (EVF) or LCD screen to frame and compose images. This is often summarized as MILC or CSC/DSLM in different markets.

• How they differ from DSLRs: No internal mirror means fewer moving parts, often smaller bodies, and the EVF provides real-time exposure information and focus aids. Battery life is commonly shorter because the sensor and EVF/screen draw power continuously.

• Sensor and lens flexibility: Most mirrorless bodies offer a range of sensor sizes from APS-C to full-frame and support a wide ecosystem of interchangeable lenses, similar to DSLRs. The image quality and performance depend largely on the sensor, processor, and lens choice.

• Pros and cons:
  • Pros: Compact/lightweight, fast AF in many models, excellent video features, real-time exposure and focus peaking in EVF, often robust autofocus performance with subject-tracking.
  • Cons: Traditionally shorter battery life, potential for EVF ghosting or brightness limitations in high-contrast scenes (though modern EVFs are excellent), and a learning curve for those used to OVFs.

• Current landscape (as of 2025): The market leans heavily toward mirrorless across major brands (Canon, Sony, Nikon, Fujifilm, Panasonic, etc.), with many engineers focusing R&D on mirrorless systems and updating key models to include higher-resolution sensors, better IBIS (in-body image stabilization), faster AF, and improved video capabilities. Several buying guides highlight flagship and mid-range options across budgets.

If you’d like, I can tailor recommendations based on:

• Your budget and whether you prioritize stills, video, or hybrid use
• Preferred brands or lenses you already own
• Sensor size (APS-C vs full-frame)
• Important features (IBIS, autofocus performance, battery life, weather sealing, video specs)

Would you like a concise buyer’s guide with top picks for your situation?