Home
>
Photography
>
A Guide to Underwater Cameras

A Guide to Underwater Cameras

There are two types of underwater camera systems: an ""amphibious"" camera, which is a self-contained waterproof system, and an SLR land camera with waterproof housing. Amphibious systems are small, compact, and easy to travel with, while SLRs offer more advanced features, such as auto-focus, advanced exposure control, and through-the-lens viewing.

The ""amphibious"" cameras are probably best for those of you who want a simple, easy-to-use point-and-shoot camera. Amphibious systems usually have a built-in lens and they will take pictures on land as well as underwater. They also have an automatic film load and advance and are generally compact, lightweight, and rugged.

If you are a more serious photographer and want the advantages of a single-lens reflex camera you will probably be happier with a land camera in waterproof underwater housing.

As a new underwater photographer you need to know the difference between taking pictures on land and underwater. The difference is what you are shooting through to take the picture. Air is transparent, whereas water is not. Light does not travel in a straight path underwater like it does in air. Water is denser and it includes particles of sand, plankton, and other debris which scatter, reflect, and absorb light.

You should know that all your underwater equipment needs and requires special care. Salt, sun, dirt and improper storage can damage a camera. Even though all your new stuff is made from rugged materials built for underwater use, it still needs to be rinsed in fresh water after every use. Saltwater should never be allowed to dry on the joints of the controls and metal fittings. Salt is your system's number one enemy. Do not rinse with a hose. The high pressure may actually force salt crystals and sand into crevices. Use only soft lens tissues or photographic lens cloths on the lenses.

The most important thing you need to know about your underwater camera care is how to clean and lubricate the O-ring after every use. The O-Ring creates a watertight seal to protect your equipment from water, and so it is very important. The seal must be flawless- with no scratches, cuts, sand, hair ? nothing on its surface. If it is not, the underwater photo equipment will be ruined. Water must be kept out! When in doubt about the sealing capability of an O-ring, always throw it out and replace with a new one.

Both your camera and your flash will need a watertight housing. You can use a flash fill-in to brighten underwater subjects at close range. Even with large flash units, though, light does not extend beyond 12 feet. The maximum effective distance of most flashes is four to five feet. Subjects farther away will not appear very colorful. Don't forget you need to wait for your flash to recycle.

Assess conditions underwater before you dive and set aperture and shutter speed before entering the water.

The best time to take pictures without using a flashgun is between 11 a.m. and 2 p.m., when the sun is overhead. To capture sunrays with the subject in silhouette, face the sun. Close-up shots of fish are best taken at night--the fish are sleepy and not as active

Shallow water near steep rocky shorelines, coral reefs and atolls, and areas near tidal streams are great places to photograph sea-life.

disposable cameras info provides detailed information about digital, wedding, and underwater disposable cameras, as well as cheap and wholesale disposable cameras. Disposable Cameras Info is the sister site of disposable cameras info.

post construction cleaning Deerfield ..

In The News:

OpenAI announced upgrades for its ChatGPT Images platform on Tuesday, saying the program can now make more precise edits and produce images more quickly.

Chrome for Android now turns web articles into AI-powered podcast conversations. Get hands-free browsing with Google Gemini's natural audio summaries.

LastPass faces $1.6 million fine from U.K. regulators after 2022 data breach exposed 1.6 million users. Password manager failed proper security controls.

Petco disclosed a data breach exposing customer Social Security numbers, financial account details, and driver's license information due to a software error.

Baseball teams can now analyze complete swing mechanics in normal training environments using Theia's markerless AI system that processes standard high-speed footage.

Smart home hacking fears overblown? Expert reveals real cybersecurity risks and simple protection tips to keep your connected devices safe from hackers.

MIT develops needle-free glucose monitor using light technology. Revolutionary device could replace painful finger pricks for diabetes management.

The ClickFix campaign disguises malware as legitimate Windows updates, using steganography to hide shellcode in PNG files and bypass security detection systems.

Researchers from Osaka Metropolitan University designed a 21-foot dome that combines aquaculture and hydroponics to create a self-sustaining urban food system.

The Fox News AI Newsletter gives readers the latest AI technology advancements, covering the challenges and opportunities AI presents.

ChatGPT data breach exposes personal info of users through partner Mixpanel. OpenAI confirms names, emails compromised in security incident.

Android rolls out Emergency Live Video for 911 calls, letting dispatchers see real-time scenes during emergencies. Great for holiday travel safety.

Malicious Chrome and Edge extensions collected browsing history, keystrokes and personal data from millions of users before Google and Microsoft removed them.

Google's new Call Reason feature lets Android users mark calls as urgent before dialing, displaying an urgent label to recipients using Phone by Google app.

Medical history made as surgeons successfully restore sight to legally blind patient using world's first 3D printed corneal implant grown from human cells.

Data brokers aggressively collect your holiday shopping data to fuel scams and targeted ads. Learn how to delete your digital profile before 2025 starts.

Scammers are sending fake MetaMask wallet verification emails using official branding to steal crypto information through phishing links and fraudulent domains.

Learn what background permissions, push notifications, security updates, auto-join networks and app refresh mean to better manage your phone's privacy settings.

Criminals test stolen data by applying for deposit accounts in victims' names to prepare bigger attacks. Learn why banks won't share fraud details.

New study of 10,500+ kids reveals early smartphone ownership linked to depression, obesity, and poor sleep by age 12. Earlier phones mean higher risks.

A phone phishing attack compromised Harvard's alumni and donor database, marking the second security incident at the university in recent months.

AutoFlight's zero-carbon floating vertiport uses solar power to charge eVTOL aircraft while supporting emergency response, tourism, and marine energy maintenance.

A new phone return scam targets recent buyers with fake carrier calls. Learn how criminals steal devices and steps to protect yourself from this fraud.

New Anthropic research reveals how AI reward hacking leads to dangerous behaviors, including models giving harmful advice like drinking bleach to users seeking help.

The Fox News AI Newsletter gives readers the latest AI technology advancements, covering the challenges and opportunities AI presents.

A Guide to Underwater Cameras

Photography