Tag: digital cameras

USB storage device

As you use a computer, you will have to get in to the habit of removing or ejecting external or removeable media safely and in a proper way rather than just unplugging the device or pulling out the card.

What is this about safely removing or ejecting removeable storage?

Mainframe and similar large computer setups required the operating system to logically mount a tape or disk pack after the system operator installed the medium in the appropriate drive. This procedure makes the files on the medium available to the operating system and computer programs

USB hard disks are more critical with this procedure

Then when the medium was finished with, the system operator had to logically unmount the disk or tape which forced all files to he written back to the medium and the operating system to deem the files on the medium to be unavailable. This procedure was also simplified when the tape and disk-pack drives used electromechanical readiness detection like sensing when a lid or door was closed or a tape was past the heads to let the host computer know that they had media on board and were ready to work with it. It would then require the operator to logically mount the medium and make it available to the system’s programs, typically by typing a special “mount” command.

Desktop operating systems like MS-DOS did away with this to simplify the operating procedures for most people especially as they were used just by one user compared to the previous mainframe systems that were used by multiple concurrent users. It also allowed the use of low-cost disk and tape systems on these computers.

Here, these operating systems immediately wrote back all file changes to the disk when a file was created, modified or deleted. As well, if a program was after a file, it would perform a directory search to determine if the file was there on that disk and the operating system didn’t cache the removeable medium’s directory structure in to the host’s memory. In a lot of cases, the act of closing the disk drive’s door or inserting a 3.5” floppy disk cause the operating system to start reading the disk’s directory in to memory.

But the Apple Macintosh maintained a similar operating requirement to the larger computer systems where you had to logically remove a floppy disk or CD from the system typically by dragging the disk’s icon to the Trash before the computer ejected the disk. This was facilitated with these computers having floppy drives that implemented electromechanical load-eject mechanisms and no hardware “eject” button ever since the platform was created.

This was carried through with Zip drives and other similar removeable-media drives that used any form of electromechanical load-eject mechanisms. The presence of an eject button on these drives typically worked as a way of telling the operating system about an intent to remove the medium so it is logically unmounted and was also implemented with newer iterations of the MS-DOS / Windows operating system along with driver programs for earlier iterations of that operating system.

Similarly, those of you who have used the MiniDisc format, especially with an MD deck or a music system that has an integrated MD recorder, may notice this taking place when you are recording to these discs. What will happen with these decks is that a message will flash up on the unit’s display screen that it is writing all the changes to the disk when you press the eject button or power off the unit before the disk is available or the unit switches off. This makes sure that all of the recording and editing activity is properly committed to the disk and is intact.

Why was there a need to tell the operating system that you were intending to remove the medium

If removeable media is removed by surprise, there can be problems with the quality of the data that is written to the medium because the operating system and applications think that certain files on the medium are available to be worked with.

This can lead to corrupted files because all the changes to the file being worked on haven’t been written to the medium completely. There are also issues with the files being locked by programs that are writing back the necessary changes so that other programs can’t interfere with this process, and if a program hasn’t released these locks or committed all of the changes, the files may not be available for other programs to work with. In the worst cases, your computer can go in to a headspin if it is working with a file that exists one minute and doesn’t exist the next.

How do you safely remove USB removeable media?

Eject option in Windows Explorer

With a computer, you make sure that you have closed the files you are working on if you were using a program to work with them. Then you perform a safe-removal procedure that is dependent on your operating system.

Macintosh users simply drag the icon representing the removeable storage to the Trash icon at the bottom right of the Desktop screen. Then there will be a message to say that it is safe to remove the medium.

Windows users can do this in two ways. They can open Windows Explorer (File Explorer) or My Computer and right-click on the removeable storage which will be represented as its own drive letter. They then select the “Eject” option to begin safely removing the storage device.

Safely Remove Hardware icon in Notification area

The other method requires you to click on the Notification Area on the Taskbar and right-click on the “Safely Remove Hardware And Eject Media” icon. Here, you are presented with a list of USB storage devices that are connected to your computer. Click on the one you want to remove to begin safely removing it. In some cases, a physical device may represent two or more logical volumes (drive letters) because it has been partitioned as such. Here, you select the physical device’s name to safely remove that device.

Devices available to remove

USB-based removeable-media adaptors like floppy-disk drives, Zip drives and memory-card readers have the ability to safely remove a particular medium or the whole device. Here, you can click on the medium to remove the card or disk or click on the physical device name to remove the device before you unplug it.

Two logical devices in one physical device – the one that is written clearly is the one to remove

This is more important with those devices that handle multiple media types like some multi-slot memory-card readers or devices that have a combination of fixed and removeable storage options like some digital cameras and camcorders that have internal storage along with an SD or microSD card slot. In the latter situation, these devices would have fixed storage greyed out while the removeable storage is written in black.

I have prepared a PDF reference sheet about the procedure needed to safely remove your removeable media from your Windows computer. Download and print this and keep it by your computer if you or others need to know how to do this properly.

Android users would go to the Storage menu and select the “Unmount SD Card” option for the SD card or “Unmount Mass Storage” for storage devices connected to their mobile devices via USB “On The Go” connectivity.

It is safe to remove

For other devices like A/V devices that write to an SD card or USB memory key, you would have to go to the device’s menu and select the “Unmount”, “Remove” or, more likely, “Eject” option. This process would be analogous to ejecting a tape, CD or MiniDisc so you can work with another medium.

Of course, powering off the equipment properly such as selecting a logical shutdown option would prepare any media or removeable devices attached to the equipment for safe removal.

Conclusion

Once you know how to properly and safely remove media or detach USB storage devices from your computer or similar device, you can avoid situations which can place your computer’s reliability or the data on that medium at risk.

Recently, I have been going through news articles about the digital cameras that are being launched or premiered this year and most of them are offering a common feature. What is this feature?

It is Wi-Fi wireless-network connectivity which allows you to link your smartphone or tablet with your camera using the same technology that is used to link these devices to your home network and the Internet when you are at home.

One of the key advantages that Wi-Fi wireless connectivity offers is that it offers a wider bandwidth than Bluetooth which would earn its keep with transferring the high-resolution RAW or JPEG pictures to your computer or mobile device.

The camera serves as an access point for the smartphone or tablet

The typical situation is that you have to install software on your smartphone, tablet or computer that is written by the camera’s manufacturer to take advantage of this feature. This software would allow you to transfer photos and video from your camera to your computing device or have the computing device’s screen work as a viewfinder for the camera. In a lot of cases, it could serve as a remote control for your camera such as to be able to trip the shutter remotely. If the computing device is a smartphone or tablet, you may have the ability to geotag the shots you took using your camera with the smartphone’s GPS sensor providing the information. As well. some Panasonic camcorders use this software to create a multiple-camera setup using your smartphone’s camera along with the camcorder’s own camera function.

Using your smartphone’s wireless tethering feature as an access point

As I have highlighted before, Ricoh uses an integrated Web page rather than a client-side app for their GR II digital camera when it comes to remote control. This would appeal to those of us who use regular computers or Windows smartphones as partner devices for our cameras.

In some situations, the camera may offer an “on-ramp” to a manufacturer-hosted Web gateway which allows you to upload and share the pictures using the Web. As well, some of these Web gateways may offer a further “on-ramp” to social-network, image-sharing or file-exchange services that you have accounts with so you can take advantage of these services.

Your Wi-Fi-capable camera as part of an existing home network

But how can these cameras work with Wi-Fi? Most of these cameras can be their own access point, typically serving one device like a smartphone or laptop. But they also have the ability to connect to an existing access point. This can be of benefit when you use a phone with Wi-Fi-based tethering, a “Mi-Fi” router or your existing home or small-business network.

How to get the most out of this technology

Interlinking with your smartphone

Facebook and Dropbox can benefit here

If you use your smartphone or tablet to post pictures on Facebook, Instagram and the like, you can take the pictures you want to post using your Wi-Fi-capable camera rather than the smartphone’s rear-facing camera and these pictures could impress people more. This is because the good digital cameras implement optics that are better than what would be integrated in a smartphone’s integrated camera.

… as can Instagram

Similarly, when you take those holiday pictures, you can take advantage of your smartphone’s GPS to geotag the pictures and use them as part of an interactive map that a social network may offer.

Here, you use the camera for most of the photography while your smartphone’s camera can work as a fallback if your application calls for something small and light and you don’t care about the quality. Similarly, your smartphone’s camera would earn its keep with video-conferencing.

The best network setup for the job

The Wi-FI feature along with the “remote-control” functionality will come in to its own when you dig out that tripod. Here, you could be able to interact with the subject yet keep tabs on how it will look in the viewfinder and how the exposure will come off using your smartphone.

An existing network served by a powerful router could earn its keep here if you need to be further away from the camera such as filming a presentation or interacting with a subject. If you are “out and about”, a Mi-Fi could serve this role easily because of it working as an access point on its own battery rather than you finding that the battery is being depleted very quickly during a long shoot.

What needs to be done

DLNA integration

Once you have NAS units, especially mobile NAS units being equipped with the Upload and Download functionaliy for their DLNA MediaServer functionality, these cameras would have to support DLNA MediaUploader functionality to allow you to deliver the pictures you took on to these devices.  Similarly the idea of “throwing” images and footage you just took to a DLNA-capable smart TV via your home network would need to be investigated as a feature for these cameras.

Here, this could be approached through identifying standards and specifications that apply to the photography and videography ecosystem. As well, this concept could be taken further to allow different software to gain access to the camera’s sensor or controls for different applications.

Wi-FI Passpoint support

Another area that may need to be worked on for these digital cameras and camcorders is support for WI-Fi Passpoint. This allows for a simplified yet secure login experience when you use these cameras with a public-access Wi-Fi hotspot like what your favourite hotel or café provides. Here, you are not dealing with a login Webpage which would be difficult, if not impossible, to use with a digital camera because of the absence of a Web browser and reliance on “pick-and-choose” data entry.

The concept of a “trusted device cluster” could be looked at in the context of Wi-Fi Passpoint so you can provide a surefire “local-network-link” between two or more devices that are using a public-access network. Here, it would earn its keep when you are controlling your tripod-mounted camera from your smartphone during a presentation or downloading those pictures to your Ultrabook or tablet while you are in your hotel room.

Wi-Fi as another path to control lighting and other peripherals

Serious hobbyists and professionals will be dealing with advanced lighting setups in order to get the best out of their photographs and footage. This may involve continuous-light devices like video and photo lights along with flash-based devices like Speedlites or studio flash units. LEDs are also making it more feasible to vary the lighting colour of a particular lamp at an instant.

Here, Wi-Fi along with some of the “Internet Of Things” proposals being put forward by the UPnP Forum and AllSeen Alliance could open up the ability to use your smartphone or camera as a control surface for your lighting setup. This would also include being able to trigger flash units manually or in sync with the shutter.

For video applications, Wi-FI technology could also earn its keep with picture-sound synchronisation by working as a “common path” to transmit SMPTE synchronisation data between audio recorders and video camcorders. This could allow for “best-quality” sound recording and multiple-camera setups with devices having their own recording transports.

Conclusion

What I see of this year’s trend for cameras and camcorders to have Wi-Fi wireless network abilities is something that will make them increasingly capable.

Through the summer, we are likely to take our portable equipment with us more frequently as we spend more time outdoors. This is whether to play music off an MP3 player in the car, use our smartphones on the road more frequently, take heaps of pictures with our digital cameras at the beaches and beauty spots we visit, or entertain our kids during the long road trips using a tablet or laptop.

Device security

Smartphones are so well used during summer yet misfortune can happen to them

When we are on the road, we are likely to carry our gadgets with us more frequently. But this becomes a temptation for light-fingered thieves to get their claws on our stuff. This has ranged from gadgets like smartphones disappearing at the beach to cars being broken into and possessions being stolen.

You can store your devices securely in your car. As well, making sure you don’t leave handbags, backpacks, laptop bags or similar luggage lying around in the car. This is because thieves can deduce that these bags contain items of value and break in to the car to steal these bags.

A locked car trunk (boot) can be the safest place to store your mobile technology when you are out and about

If you are using a sedan (saloon) or similar vehicle that has a separately-lockable luggage compartment i.e. the boot or, in the US, the trunk, this is the safest place for these valuables if you are not using them at your destination. This can apply to tradesmen’s utes (pickup trucks) where there is a lockable box that is securely attached to the cargo bay on these vehicles.

Hey, do you know where the luggage blind is for your hatchback or 4×4?

Hatchbacks, station-wagons (estate cars) and SUVs (4-wheel-drives / 4x4s) aren’t all that secure in this context but using the luggage blind or removeable luggage shelf that may come with your vehicle can make it easier to keep the valuable items “out of sight, out of mind” but these aren’t necessarily secure. For that matter, where is that luggage blind or luggage shelf that came with your car if your car came with that?

The glove compartment in the dashboard or the box in the centre console that doubles as an armrest serves well as a secure storage location for small items like MP3 players, smartphones or small digital cameras. This is more so  especially if you can lock it with a key.

If you are at the beach, pool or beauty spot as a group, you may be tempted to keep all the smartphones, cameras and similar equipment in a pile near the drinks or picnic food especially as some of you go off for a swim or to admire the beauty. In these situations, make sure there is a trusted adult near that pile of equipment at all times to keep watch on it. Also hiding the equipment amongst bedding, towels, picnic rugs, the picnic basket or in common-looking bags may work as a way to make it less attractive to thieves.

Avoiding damage

One major cause of damage to a lot of the portable gadgets during the summer is water and other fluids; or sand getting inside the devices.

If you find that there is a greater risk of this kind of damage happening to these devices, it is a good idea to have liquid-tight containers for the devices. For cameras, you can purchase weatherproof cases from your favourite camera store. These come either as a generic case that suits cameras of the type or a manufacturer-designed case that suits a particular camera model. You may also come across weatherproof containers for smartphones and tablets like the iPad.

The common zip-lock sandwich bags that you can get from the supermarket can work well with smartphones, portable media players and remote controls that are more likely to be baptised in swimming-pool water or have a drink tipped over them.

Avoid the temptation to carry a smartphone or MP3 player in your pocket or wedged in on your swimwear when you are near the water unless it is kept in a zip-lock bag or something similarly waterproof.

The battery, SIM and memory cards have to be removed from the device if it gets wet

Attention hotels and similar establishments: You could make sure that your Housekeeping department keeps a supply of the zip-lock bags of varying sizes on hand! This can come in handy with guests as a way to contain leaks from toiletry bottles or allow guests to protect their smartphones from water damage.

Water or other fluids inside device

The battery should be removed from a waterlogged camera while they are switched on so the lens doesn’t retract

If water does get inside a device, these steps may help in mitigating the damage that this may cause to the device. Situations like the device falling in to sea water, a swimming pool or accompanying a load of laundry through the washing machine can make things worse due to chemicals being part of that water.

Shut down the device fully. In the case of a camera with a lens that retracts when it is turned off, remove the battery while the camera is on and the lens is extended. With smartphones and tablets, this may involve following the operating system’s shutdown procedure like pressing the sleep button for a long time to bring up a shutdown menu, then selecting the Shut Down option.

Dry SIM and memory cards with a soft tissue or micro-fibre cloth

Remove all batteries, memory and SIM cards from the affected device if possible. Dry off the memory and SIM cards with a tissue or micro-fibre cloth before you consider installing them in another device like a spare mobile phone.

Shake as much of the water out of the device as you can. Avoid the temptation to run a hair-dryer over the device or run it under that hand-dryer in the public restroom. This introduces extra heat to the device which can damage some components very easily.

Smother the device in a bowl of raw rice or place it in a zip-lock bag with a dessicant pouch or plenty of raw rice. Make sure that all of the covers and doors for the various compartments on that device are open when you do this. Leave it in this bowl or zip-lock bag for three days in order for the device to dry out effectively. This procedure effectively mitigates the damage that the water does to the device’s circuitry, switches and mechanisms.

Sand or dirt in your equipment

You can get dry sand or dirt out of your electronic equipment either by shaking it out, using compressed air to blast it away from the equipment or using your household vacuum cleaner to suck it out. If you use the vacuum cleaner for this purpose, you may find that the crevice nozzle that isn’t perforated on each side may give you better results.

Before you do this with a camera, smartphone or other device that has small removable memory or SIM cards, make sure you remove these cards from your device before you clean it out.

Dealing with insurance

Smother the wet device with dry rice and leave for a few days

When you purchase any device, make sure you have the receipt or the instruction manual for that device. In the case of a smartphone, MiFi or similar communications device that you have bought as part of a subsidised-equipment contract, keep the details about the contract that you bought this device under. These documents are useful for your insurance claim as a way of proving you own that device.

As for home / contents insurance policies along with travel insurance policies, make sure that the policy does cover for accidental damage to portable electronics while they are used on the road. Beware of those policies that require you to pay a large excess on accidental damage claims because these large excesses may be more than equipment of a similar standard is worth in the case of small devices. In some cases, an insurance policy that offers excess-free coverage for theft and accidental damage to portable equipment on the road for a modest extra on the premium may be worth its salt.

Similarly, some mobile carriers may offer a specialised policy that covers smartphones and associated devices for theft and accidental damage, usually for equipment that is part of an ongoing subsidised-equipment contract. These may be worth investigating especially if they offer coverage for associated accessories, “on-the-road” damage or “other-device” coverage; along with excesses that you pay during a claim. The main limitation with these policies is that they provide cover for specified devices, namely the smartphone or tablet that is part of a particular contract.

Conclusion

Once summer comes, it is worth making sure you don’t run in to trouble regarding your valuable electronic equipment.

This article will be published around May to coincide with summertime in the Northern-Hemisphere countries like the USA, Canada, UK and Europe, but will be re-published during November for summertime in the Southern-Hemisphere countries.

Article – From the horse’s mouth

Panasonic

The wonderful world of Wi-Fi supercharges our latest cameras and camcorders (Blog post)

My Comments

Panasonic is pushing the idea of apps as a Wi-Fi-linked control surface for cameras and camcorders

When Wi-Fi is added to a digital camera or camcorder, it is typically about being able to download the images or footage to a regular computer for editing and post-production.

But Panasonic is using Wi-Fi wireless networking for more than that thanks to the app-cessory model. Here, they provide a downloadable app that works as a control surface for the camera and can use the smartphone’s abilities to increase what the camera or camcorder can do.

For example, they have a “Jump Snap” feature which uses the accelerometer in your phone to detect the peak in a jump to cause the camera to take the picture as you jump. It also exploits the smartphone’s GPS so you can geocode your photos that you take with your camera. Let’s not forget the ability to use the smartphone’s screen to set up and take your photo, as what a control-surface app would do.

Your smartphone could control one of these and add extra capabilities to it

For camcorders, the Wi-Fi ability allows for multi-camera filming like what the TV producers do in the studios. Here, the smartphone’s camera works as a second camera. This would lead to practices like picture-in-picture or real-time cuts/fades/dissolves being part of your videography. There is even the ability to purpose the camcorder as a network-capable video-surveillance camera with your smartphone or tablet serving as a monitor.

What I see of this is these apps could allow Panasonic and other camera manufacturers to add capabilities to their cameras and camcorders using a mobile-platform app.  The multi-camera filming could be improved upon by allowing multiple camera devices, especially digital cameras or camcorders with the good lenses, to work together for creating multiple video tracks or multi-camera views.

The current limitations with anything that will use a smartphone to add capabilities to a digital camera or camcorder is the fact that the software will only work with a certain range of products supplied by a particular manufacturer. Typically this could be limited to mid-tier and high-end products made since a certain model-year or generation.

Who knows who else will be turning out “app-cessory” setups for their camera and camcorder ranges?

We could see Box.com and OneDrive appear on these printers alongside Dropbox

Viber and WhatsApp are showing themselves as capable over-the-top communications systems while OneDrive and Box.com are coming up as valid cloud-hosted storage services. But there is something very common with most of these companies where they aren’t being as proactive as Skype or Dropbox.

This is more so in the concept of licensing the front-end software for their services to device manufacturers to integrate the functionality in to their devices’ software. Skype have made strong headway with integrating their software in to a large range of smart TVs and video peripherals so that people can purchase a camera kit for these devices to convert them in to group videophones. Similarly, they helped someone else pitch an IP videophone and integrated add-on universal video camera kit in order to extend this function to additional devices. Dropbox has gained extra foothold with recent Brother printers as a “print-from-Dropbox” function while allowing owners of certain WD NAS units to make these devices serve as an on-ramp to Dropbox and Olympus integrating Dropbox upload functionality in to their latest Wi-Fi-capable voice recorder.

A smart TV enabled for Skype could also be enabled for Viber or WhatsApp

Ways this could happen for Viber, Skype and WhatsApp could be in the form of IP phones that integrate functionality for these services or IP-based business phone systems that allow the creation of voice / video trunks, tie-lines or messaging trunks offered by these services. Here, Skype, Viber and WhatsApp could monetise their services better by offering business telephony services with high reliability at an appropriate premium.

OneDrive,  Dropbox, Box.com and other cloud-storage services could work with device manufacturers to provide network upload functionality or a NAS vendor could offer “on-ramp” functionality or “store-and-forward” synchronisation functionality for their devices to cater for multiple NAS devices installed at different locations.

What really has to happen is for Viber, OneDrive and co to work with device manufacturers to build up interest in integrating their functionality in to the devices rather than leaving it to Skype and Dropbox to dominate the scene.