Home
>
Photography
>
Digital Camera Auto Exposure and Auto Focus

Digital Camera Auto Exposure and Auto Focus

The digital camera being a fantastic and technologically advanced device contains many different applications of its own. Many users of this fabulous device are unaware of quite a few of these functions which can actually do wonders. And it is the duty and right of every person possessing the digital camera to intervene into the depths of knowledge to understand their prized possession and their varying qualities in order to foster the true respect that this device deserves. This article deals with providing information regarding one those qualities - Auto focus and auto exposure!

Exploring the information in slight more details it can be stated that auto exposure cameras are provided with a fixed focus lens or manual focus lens. These cameras are the simplest to set exposure. To obtain the correct exposure for a particular subject of photography, the only thing that needs to be done is to simply lock the exposure by pressing the shutter down halfway on the digital cameras upon a reference object that is about one fifth gray and also illuminated by the aid of the same source of light as subject of photography. After locking the exposure, the photographer has to recompose the frame and shoot the picture. Auto exposure and auto focus cameras are to some degree harder for setting the exposure, because they contain the exposure lock that is generally tied to focus-lock. However, the users or photographers using these auto exposure and auto focus cameras can still make adjustments for the correct exposure and correct focus using the digital cameras and make the photographs perfect! Again, the exposure can be adjusted by locking on an 18% reference that is illuminated by the aid of the same source of light as subject of photography. The users have to only ensure that the distance to this so-called reference is the same as the distance to the subject of photography that actually sets the focus.

Now discussing the auto focus and auto exposure lock (AE/AF) a bit more in detail. The shutter release button on a digital camera has more function than just snap a cool picture. The users have to grab a technique where he or she has to depress this shutter release button half way down thereby locking both the auto exposure and auto focus. This enables the users or photographers to have more control on exposure in difficult lighting situations while using the digital camera. Moreover, this entire process also helps him or her to determine where the camera focuses. Like if the photographer intends to set the exposure before composing the final shot of the photograph then he or she can move the digital camera slightly so that only the subject to be photographed is visible prominently in the auto focus frame in the viewfinder. As a next step he or she can depress the shutter-release button down half way to set focus and exposure and then recompose the picture and finally completely depress the button in order to capture and freeze the moment of time! It is to be noted here that the auto focus and auto exposure lock (AE/AF) is available in all photography modes of the digital cameras that are nowadays available for the general people.

Not much remains to be discussed about this particular topic of auto focus/auto exposure and a brief discussion as above is enough to reveal a bounty of information regarding this fantastic feature of the digital cameras. At the end of this discussion it can be expected that both the novice and expert photographers and user of the digital camera would benefit from whatever has been revealed and the effort to bring out the human mind from the dark oblivion about auto focus and auto exposure lock would be a success in the magic light of the digital camera!

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.

trusted cleaning company Lake Forest ..

In The News:

Mac malware campaign uses fake AI chat results to deliver AMOS through terminal commands, security researchers report. Attackers exploit trust in AI-generated cleanup guides.

States require AI disclosure in healthcare as California, Colorado and Utah implement laws mandating transparency when artificial intelligence influences patient care decisions.

ETA sharing on Apple Maps and Google Maps keeps contacts updated automatically while you drive safely. Learn step-by-step instructions for iPhone and Android.

Data removal from brokers protects against AI-powered scams and deepfake threats in 2026. Learn how data brokers sell your personal information to scammers.

Learn how to act against cybercriminals in 2026 with essential security steps like two-factor authentication, software updates and credit freezing.

Choose between OpenAI releasing Sora text-to-video model, the AI race heating up, or Waymo driverless cars launching in cities across the country

Learn how to set up Google Maps and Apple Maps on your phone to automatically remember where you parked. Step-by-step instructions for enabling location services and parking detection.

Phishing scammers use rnicrosoft.com domain to impersonate Microsoft by replacing "m" with "rn" in typosquatting attacks that steal login credentials.

OpenAI announces new teen safety rules for ChatGPT users under 18, blocking romantic roleplay and requiring extra caution on body image topics.

A 2025 data breach at fintech company 700Credit exposes personal information of more than 5.8 million people through compromised third-party integration partner.

Retailers lose $76.5 billion annually to return fraud as nearly 10% of U.S. retail returns involve fraudulent activity, with $850 billion in returns expected in 2025.

ShinyHunters claims responsibility for stealing 94GB of Pornhub user data affecting over 200 million records and demands Bitcoin ransom.

ChatGPT 2025 now connects to Apple Music, Canva, Expedia, TripAdvisor and OpenTable through built-in apps that help users create playlists, design graphics and more.

Apple releases emergency patches for two zero-day vulnerabilities actively exploited in attacks. iPhone and iPad users urged to update immediately.

DoorDash launches Zesty, an AI-powered social app that recommends restaurants through conversational search, now testing in San Francisco and New York.

Cybersecurity firm Infoblox reveals that over 90 percent of parked domains now redirect visitors to scams and malware, making simple typos extremely dangerous.

The Fox News AI Newsletter covers the latest artificial intelligence technology advancements, including the challenges and opportunities AI presents now and for the future.

GPT-5.2 is now live for all ChatGPT users with improved coding, writing and image interpretation, with Kurt Knutsson offering his review.

New iPhone replacement scam uses pressure tactics and fake carrier calls to steal devices from buyers. Criminals claim shipping errors and demand urgent returns.

Amazon Ring's new facial recognition feature sparks privacy controversy as Electronic Frontier Foundation critics argue the AI upgrade expands surveillance risks.

New Android banking trojan Sturnus steals credentials, reads encrypted messages and controls devices.

Denmark's 3D-printed student village proves automation builds 36 apartments faster than traditional methods. Skovsporet project shows housing future.

Discover Android's new Sound Notifications feature that alerts you to smoke alarms, doorbells, and baby cries even when wearing headphones.

New SantaStealer malware reportedly threatens holiday shoppers with password theft. This Christmas-themed info-stealer targets browsers and crypto wallets.

The Christmas season brings a surge in Netflix phishing scams targeting shoppers with fake emails. Stacey P received convincing scam but verified account first.

Digital Camera Auto Exposure and Auto Focus

Photography