Camera buying basics
What should you look for in a camera? Start with five questions
Megapixels are not the starting point. Define what you shoot and what you will carry, then compare sensors, lenses, autofocus, and video in context.
The right camera is the one you will carry—and can still afford lenses for.
Step one: start with what you shoot
Writing your main use in one sentence is more useful than choosing a brand first. These four scenarios reward different specifications.
Travel and street
Prioritize total kit weight, body size, stabilization, and compact lenses in the focal lengths you use.
Family and everyday
Subject detection, pleasing output, an articulated screen, and quick operation often matter more than ultimate image quality.
Sports and wildlife
Continuous autofocus, burst duration, the viewfinder, and available telephoto lenses are central.
Portrait and commercial
Check skin tones, flash support, tethering, lens quality, and post-processing headroom.
Step two: check five specifications in order
These decisions depend on one another. Confirm the system and lenses before isolated headline numbers, so you do not pay for performance you will not use.
1. Sensor and resolution
Sensor area affects low-light and depth-of-field potential; resolution affects detail and cropping room. Never judge image quality by megapixels without considering generation, lens, and processing.
2. Lens system
List one lens you need now and two you may add later. Check price, weight, focal length, and availability. Bodies change; lenses usually stay with you longer.
3. Autofocus and speed
For people, pets, and action, look for reliable recognition, low-light focus, and continuous tracking—not just the maximum burst rate. Buffer depth also shapes the experience.
4. Video features
Check whether your resolution and frame rate are cropped, plus record limits, heat, rolling shutter, ports, and stabilization. A simple “4K” label says very little.
5. Handling, battery, and portability
Grip, controls, menus, screen, viewfinder, and battery affect every session. Handle the body in person when possible, and include your everyday lens in the weight.
Step three: budget for the whole system
This is a starting split for a first kit, not a fixed rule. Rebalance it if you own lenses already or clearly need specialist telephoto glass.
Body: cover the essentials without consuming the lens budget.
Lens: cover your most-used range and leave an upgrade path.
Reserve: cards, battery, strap, bag, and basic upkeep.
Final checklist before buying
Once the shortlist is down to two or three models, use the same checklist for each so a temporary discount does not decide for you.
- The size and weight remain comfortable with your everyday lens attached.
- The lenses you need are available now and included in the total budget.
- Autofocus, video, and ports fit your main use—not merely a better spec sheet.
- You checked the full manufacturer specification, regional model name, and warranty.
- Budget remains for batteries, storage, and the gear needed to carry the camera.