Category Archives: Photography

Arctic Sound P311 headphones

iPad

A wireless solution.

Headphones? What’s that doing here? Well, show me someone not interested in music and the movies and I’ll show you one who cannot take a photograph.

One of the cheapest – yet most vital – components of my HackPro desktop is the extremely thin layer of conducting Arctic Silver thermal paste between the case of the Core2Quad CPU and the Coolermaster radiator which keeps the CPU cool as a cucumber. The maker of that paste, beloved of all computer builders, also makes headphones.

For a long while now I have been using a pair of Sennheiser PX100 corded headphones for listening to music and watching movies on the iPhone and iPad. They are over the ear, comfortable and the sound is fine. They cost $60-70. Folding them into the provided clamshell case requires a degree in astrophysics, but once you get the hang of it there’s lots of innocent fun to be had and money to be made betting friends they can’t get them into the case! Indeed, I just had the satisfaction the other week of taking $2 off our nine year old who quit in frustration. One back for the old man!

But that bet cost me, as somehow the cord got frayed and is now literally hanging by a thread. So I searched around for a wireless alternative which might better survive our boy’s ministrations, and settled on the Arctic Sound P311 at $30, a Bluetooth headphone which requires no wired connection.

The manufacturer claims a 20 hour life per charge, and charging is through the provided USB cable from any computer, so there’s no additional charger to carry. All you need is the mini-USB cable and your laptop or desktop. The iPad’s battery life on streamed Netflix movies is a consistent 11 hours, so as long as the headphones’ battery lasts 11 hours or more things are fine. Charge the iPad, charge the ‘phones. My ‘phones shipped partially charged, needing just 90 minute to full charge, indicated by the red charging LED being extinguished. The maker says a full charge takes 2 hours. The bottom line is that a 2 hour charge to get 20 hours of use is far faster and longer than recharging an iPad will get you, so the iPad remains your limiting factor in practical use as far as recharging goes.

Charging light on. This changes to alternating red/blue when pairing – see below.

My primary use is for iPad movies, but the ‘phones work fine with my rather dated iPhone 3G, my HackPro (which uses an iOGear BT dongle), the MacBook Air and the MacMini used as a home theater computer. The latter is handy as you can listen to movies on your big screen TV using these Bluetooth headphones, and disturb no one during a spot of late night viewing. On the iDevices pairing is simply a question of holding down the button on the right headset for a few seconds until you get alternating red and blue LEDs, then going to Settings->General->Bluetooth. On desktops and laptops you go to System Preferences-> and have at it. In all cases, disconnect the existing Bluetooth connection or things get hairy and be sure you are not charging the ‘phones while you do this – I had no luck pairing while charging.

Here are some screenshots of the pairing process.

Pairing on an iDevice:

Step 1

Step 2

Select the Eq which suits your ears best – forget what it’s called, go with your ears:

Step 3

Pairing on a laptop or desktop:

Step 1 – System Preferences

Step 2 – Paired.

Step 3. System Preferences->Sound. Redirect the output to the headphones.

Use with AppleTV2:

As TUAW confirms, ATV2 includes a Bluetooth chip but it is not accessible in the device as shipped. Frustrating. You can hack your ATV2 to make BT work but it’s likely that future software updates will reverse the hack, so I’m leaving it alone for now. Hopefully Apple will add a Bluetooth switch in its ATV2 software. Meanwhile, rumors suggest that the next ATV OS update will add Bluetooth functionality to ATV2. That will be great if it happens.

These ‘phones fit over the ear (Van Gogh need not apply), like the Sennheisers, but rather than using a sprung steel band across the top of your head to provide grip, they hook over each ear instead with the connecting band serving no mechanical purpose other than connecting the two speakers and providing a route for the wire buried within, to get sound to both ears.

The P311 headphones over the ear, showing the controls.
No problem when wearing glasses, either.

The volume control buttons are visible above; the other two black buttons are for fast forward and reverse (next/previous track) and the center button is on/off/pause/answering phone calls. All controls worked perfectly with the iPod app on my iPhone and iPad.

The P311s comes with a nice, semi hard case. The earspeakers are folded in eyeglasses-style, and the astrophysics degree you just got to put away your Sennheisers is now useless:

Sound: I tested the ‘phones on classical piano and on Ken Russell’s extraordinary movie ‘Mahler‘. The sound is excellent. You won’t get earth shaking bass from speakers this small (especially given their low level of sealing to the ear) but experimenting with the EQ settings in an iDevice (see above) gets you the best sound, based on your hearing. Both the iDevice and P311 volume controls remain functional so you can mute from either. Pausing using the big, central button on the right speaker also pauses the movie or iPod on your iDevice.

Despite fitting lightly over the ears, these provide a fair amount of sound isolation. You are not sealed from the outside world but there is a significant amount of noise reduction. Best as I can tell there is no electronic noise cancellation technology in the P311s.

Comfort: If you tilt your head back the crossbar will strike the base of your neck and try to displace the ‘phones. Whether that’s an issue only you can decide. In practice it suggests these ‘phones may be sub-optimal for aggressive work out routines. The picture of the acrobat on Arctic’s web site strikes me as ludicrous.That’s not what I use them for so I cannot comment.

Microphone: There’s a built-in mic for use with the iPhone. I have not tested it.

Range: Extraordinary. There is no loss of signal until you are over 40 feet from either iPad or iPod, despite intervening walls and a staircase. This translates, in practice, into ‘walk-about’ functionality in the average home without having to take your sound source with you

* * * * *

A fine set of phones at a great price and a worthy replacement for my damaged Sennheisers. There’s the inconvenience of having to recharge these, but as their battery life exceeds that of the related iPad I use them with, it’s hardly an issue, as I simply recharge both simultaneously. BT pairing on the five devices I tested – iPhone 3G, iPad, HackPro, MacMini and MacBook Air was flawless. Let’s hope pairing with the AppleTV2 arrives with the next ATV OS update. Recommended, but try them first to see if they are comfortable for you.

Most importantly, cordless ‘phones transform an iPad from “I’m not going to lug that around” to a functional music source, whether from stored music, your Home Sharing or, soon the iCloud.

ClamXav

Software

Mac virus scan.

Macs don’t get viruses. Well, OK, not much anyway.

In my decade of using Macs I have never run any anti-virus software and, as far as I know, never got a virus. If I have it has made no difference, as I have seen the grey OS ‘kernel panic’ screen maybe three or four times in that decade (absent when hacking and it was my own fault!). The last time this happened in regular use was maybe 4 years ago, so it’s not like I’m worrying.

This is why I tend to view the scare stories put out now and then by the major anti-virus app makers – McAfee and Norton – as so much disinformation intended to ramp up sales of their products. Indeed, while Apple constantly patches security holes in its Apps, the first time I recall them making an OS update for a virus was the 10.6.8 update of Snow Leopard a few weeks ago to stave off the MacDefender virus, whose Russian creator was just arrested a few days ago. The virus was funded by ChronoPay, Russia’s PayPal and evidently a brother under the skin when it comes to business ethics. Doubtless, they are paying off the KGB as you are reading this. (That’s Russia’s version of the plea bargain – Putin gets richer and life goes on as usual). What Apple was really staving off is user stupidity. This thing would pop up on the screen from nowhere asking you to download an anti-virus program, and would infect your Mac once you did so. Well, there’s one born every minute, as the old saying has it.

The other common invasion attempt is emails from fraudsters representing themselves as PayPal and asking that you ‘update your information’, part of which ‘update’ requires you enter your password. Well, duh! Known as ‘phishing’, the victim here deserves everything he gets and finds out soon enough when his PayPal account has been emptied. So now instead of PayPal and their partner in crime, eBay, cheating you, someone else has. Same difference. Good luck recovering a dime from PayPal, by the way.

However, the other day my eye was caught by a free virus scan utility curiously named ClamXav. A Mac source mentioned it so I downloaded it and scanned the 1tB HDD where my data – some 650gB – reside. 311 minutes later it reported 7 viruses among the 3 million + files it had scanned, all being phishing viruses in deleted and unopened emails. I zapped those and went away happy. Note to self: Trash deleted emails in future. Not bad when you consider those data files had gone through many migrations among successive machines over the past decade.

You can download ClamXav by clicking the picture below; the maker says its fully compatible back to OS Tiger, 10.4:

Click the picture to go to the ClamXav download page.

You really want to set this up on a ‘set-and-forget’ schedule, so after doing the first lengthy scan of all my data drives, I set ClamXav to do a daily virus definition update and to scan just my data directory (10 minutes) right after, thus:

Daily update and scan setting in ClamXav.

I’m using the app with OS 10.7 Lion, and tell ClamXav to quarantine infected files in a separate directory whence they are easily zapped. Remember to Empty Trash after deleting the bad files. Be sure to download it using the above link; the version downloadable from the Apple AppStore does not have full functionality, for some reason lost on me.

The future of the desktop computer

Computing

The end of the desktop era.

The latest changes to my Hackintosh, which now see it once more delivering performance comparable to the best top-of-the-line Macs at no additional cost, raise the question of what the future holds.

The original design brief for the Hackintosh, which FU Steve built for me, was reliability, with a primary focus on proper cooling of components. Secondary requirements were speed and expandability. At the time of construction, two years ago, I anticipated the HackPro might enjoy a five year useful life. I am now inclined to think that was an underestimate.

If you compare the specs of Intel’s current i3/i5/i7 CPUs, which succeeded the Core2Duo and Core2Quad design (still made and still popular in PCs) the main difference is not in speed but in power consumption. The latest graphics cards barely improve on the Nvidia 9800GTX+. Intel is bowing to the trend which favors mobile computing, meaning laptops, where battery power use is important. Low power consumption CPUs with integrated GPUs add more value than greater speed. And adding more cores is futile. Absent some exotic statistical math applications, plus super speed weather/military computers and the like, multi-core CPUs are wasted on what we photographers use daily. For that matter, four cores are largely wasted, poor application programming failing to make effective use of the available parallel processing potential. Don’t believe me – run Lightroom on a 2 core then a 4 core CPU. Notice any difference?

Since the HackPro was built, iOS and Android, cell and tablet operating systems, have taken the world by storm. While nowhere near as fast as desktop/laptop OSs, they add a whole range of capabilities – fast AppStore downloads, huge app selections, touch interfaces, great UIs – which are quickly migrating the desktop and laptop to the category of mature technologies. The return on incremental investment in these latter technologies falls daily, as Mobile is where the money is. Four years ago Apple introduced the iPhone. Today the iPhone and iPad account for three quarters of the company’s sales! The consequences of this trend are that desktop development will slow to a crawl and prices will cease falling as sales volumes fall. Sure, there will always be demand from artists, scientists, cinematographers and photographers for heavy duty iron but that population is minuscule.

Desptop/laptop OSs have also peaked. Windows 7 (I have not used it so this is apocryphal) is reported to be reliable (a twenty year miracle in the making) and speedy, and OS Lion may well be the last major version of OS X, though after using Lion for a while it’s clear that the changes are very minor ones in UI cosmetics and add little benefit for the working stiff. You aren’t going to make your machine any faster by installing Lion, that much is certain, though users ought to be grateful for an absence of code bloat and forced hardware updates, for the most part.

Desktop applications are likewise mature. Adobe isn’t about to fix the execrable UI of Photoshop when it has a static audience which will dutifully upgrade every 18 months for minor improvements at the margin, using corporate money. And they can’t add too many of PS’s features to the far friendlier Lightroom for fear of cannibalizing their cash cow. But I am happy to wager that they are working like stink on mobile versions of their apps. Sure, some apps like Pixelmator will capture amateur users who (rightly) balk at CS5’s ridiculous price, but the design pro has zero incentive to save his employer money or to risk his career on an unknown quantity, no matter how good.

Dinosaurs. The HackPro and its patrician brother.

The biggest benefits to desktop users in recent years have come from flash storage Solid State Drives and improving broadband, both technologies being pushed to improve by burgeoning demand for mobile devices. Intel’s Light Peak data transfer technology (Apple calls it Thunderbolt) will increase wired data transfer rates ten fold while cutting the number of connecting cables. LCD monitor technology has reached price-quality equilibrium. Who needs higher definition or larger screens than what those already afforded at reasonable cost today? What the world needs is faster broadband and better batteries, not faster CPUs or better displays.

I look at our 9 year old son. I would far rather he learned the iPad, maybe with the eventual addition of a keyboard, than an iMac. If he wants a big screen display it’s there at the touch of an icon, no wires needed. Wikipedia has obsoleted space gobbling encyclopedias and access is instantaneous. His music is accessible anywhere, he can print anywhere (if he even cares what a printer actually is) and even he can lug around the modest weight of a tablet all day. He has access to millions of books and thousands of newspapers at no weight or storage cost and his tools for learning math and spelling are all there at a touch. If he gets serious about taking pictures, all the processing power he will ever need will be on his tablet in a year or two and the camera will likely be a part of that tablet too. And I will be making sure that one of the developed world’s worst educational systems – it’s called US schooling – will not stand in his way.

So why force him to learn yesterday’s technology?

Those magnificent dinosaurs, the desktop computers of our time, will soldier on in dwindling numbers for a generation yet, after which time they will be so much landfill.

The Hackintosh gets a speed boost

Hackintosh

35% faster on graphics. Cost – zero.

Background:

This is going to sound like an ad for hair restorer, weight loss or one of Steve Jobs’s rollouts of Apple’s latest piece of hardware, but bear with me and read on.

One of the beauties of the CPU + motherboard in my Hackintosh is the ability to overclock the CPU with great control over dozens of settings – meaning to run it at a faster clock speed than the stock 2.83gHz. I have run mine stock until now, almost two years, and decided it was time to speed things up in light of the improvements in the latest CPUs and to counter the small 2-3% speed loss with the Lion upgrade in case that gets worse with newer versions of Lion.

To do this, I changed some settings in the BIOS on the motherboard after studying overclocker fora (!), and applied a modest overclock of 27% – thus increasing the stock CPU clock speed from 2.83gHz to 3.60gHz, or some 27% faster. This is conservative compared to what the hard core gamers on these fora with liquid cooled (!) CPUs do – they take it as high as 4.50 gHz or + 60% over stock.

The new settings can be saved as a separate set in the BIOS of the Gigabyte EP45-UD3P motherboard, so reverting to stock is a simple matter of recalling your stock settings when restarting. The Gigabyte’s superb dual BIOS (meaning there’s a backup if the main one blows) can store nine different sets of settings if you are that way inclined. On the handful or really warm days here (95F) I would simply restart the HackPro with the stock settings to keep things cool – we have no air conditioning. I simply take note of the Temperature Monitor reading for CPU1 in my menu bar – CPU1 always runs the hottest on the multi-core CPUs I have used.

System Profiler before and after. The CPU is actually a Core2Quad, Q9550 Yorkfield.

Geekbench Before and After:

Geekbench is the objective way of testing CPU speed and is recognized as the standard by many geeks. The pictures below are using 10.7.0 Lion measured in Geekbench 64-bit mode.

Core2Quad CPU at 2.83gHz and 3.60gHz, respectively.

That’s 28% faster compared to the theoretical 27% (3.60/2.83).

Comparison with latest iMacs with i5/i7 CPUs:

The above Geekbench score compares very favorably with the iMacs sold in the past year – HP1 has gone from bottom to top quartile:

Cinebench Before and After – GPU:

Cinebench is a commonly accepted GPU test for graphics rendering.

Cinebench reports a 35% increase in framing rate.

Both Geekbench and Cinebench tests were made using the 64-bit versions of the applications.

Subjective ‘feel’:

I hate subjective data. This is an engineering process, not an exercise in emotions. Subjective clap trap is about as reliable in the computer world as in the stock market. Just because you saw the Apple store full of people doesn’t mean the stock will take off. For all you know they were having a fire sale.

Still, in LR3, the sliders reflect changes even more immediately – almost a ‘real time’ experience. Enough with the subjective stuff.

Trade-offs:

What are the trade offs?

  • Stability. The built in CPU/BIOS failsafes may kick in and switch your machine off. I have run this (modest) overclock hard with no issues.
  • Heat. HP1 was running its CPU1 core at 115F. With this setup it jumps to 138F, still well below the 176F service limit for the Core2Quad. Still, that’s higher than I like so I opened up the case and …. lo and behold …. found that the cable for the CPU fan, attached to the Coolermaster radiator was detached! This must have occurred when I was installing the SSD drives. I reattached it and the ambient CPU1 temperature in overclock mode dropped immediately to 115F. So heat is not an issue if your CPU is properly cooled – my Hackintosh’s CPU has run in the 106-115F range for two years without one problem.

How hot can the Core2Quad be allowed to get?

In my original Hackintosh piece I stated that Intel’s specs dictate a core temperature no higher than 160.5F. That translates to an external case temperature maximum of 185F, as evidenced by Intel’s static storage data:

How hot can the outside get?

Temperature Monitor reports the outside case temperature, so a reported 185F (85C) is the same as the 160F core limit. On heavy Handbrake video conversion I have seen an indicated 169F (CPU cooler fan disconnected!), which is still 16F below the service limit. Limits on Core2Duo CPUs are higher – you can find them on Intel’s web site.

And this is what I mean by properly cooled – not the wimpy, stock Intel fan but something that really works:

Coolermaster 120mm variable speed fan in place. The red circle denotes the proper installation point for the fan clips.
Case exhaust fan on the left, HDD fan on the right.

Given the low cost of these after market fans – $30 for this radiator and fan – there’s no excuse for not installing one. I would not risk overclocking if I was using Intel’s stock CPU fan. In the chart below, you can get a sense of CPU1 temperature when doing a common task – exporting an image from Lightroom3, after converting the 12 mB RAW original to TIFF, to Photoshop CS5, doing heavy manipulation of the image and then re-saving the 80mB TIFF file back to Lightroom3. The temperature rises to 136F and quickly drops back to the steady state 115F.

Temperature changes in LR3 and PS CS5.

Stress test:

To stress test the system I ripped a double layer 7.4gB movie DVD using RipIt!; this took a scant 12 minutes, for a maximum CPU temperature rise of just 2F. I then compressed that ripped movie down to a 1.26gB .m4v file, using Handbrake, another 40 minutes, for a temperature rise of 20F to 133F.

Rip = green box; compress = red box.

Nothing to be worried about here. By the way, the comparable times for this task on my MacMini (Core2Duo, 1.83 mHz, 320M GPU), were 30 and 75 minutes, respectively, albeit with the CPU temperature soaring to 169F.

BIOS settings:

You can see all the revised BIOS settings on the Gigabyte EP45-UD3P motherboard by clicking the picture below. The RAM is Patriot DDR2/800mHz. This board uses the 775 socket common to many Core2Duo and Core2Quad CPUs from Intel. The latest i3/i5/i7 CPUs use a different socket and require a different motherboard and upgraded memory. Changes from stock are marked with green arrows:

Click the image to see revised BIOS setting slides.

To make things easy, as your Hackintosh will be disabled while you are in the BIOS, follow the above pictorial on your iPad while making these changes.

Gigabyte EP45-UD3P motherboard:

When Adam Pash at Lifehacker conceived the design of the HackPro over two years ago, he choose the Gigabyte EP45-UD3P motherboard (775 spec CPU socket). A wise choice as this electronic hardware is a masterpiece of design and flexibility. While it’s no longer available new, there are many used ones on the market available for around $100, and you can download the related manual by clicking below.

Click to download the Gigabyte motherboard manual.

I would guess you could build the HackPro using its previous generation parts with two 1tB HDDs for $500 today with mostly used parts, before adding displays, and have performance as good as the latest iMacs, with far superior engineering design and longevity for heavy users. A good new Dell IPS display 1920 x 1080 widescreen, like the U2211H, will add $250 – it’s probably too great a risk to buy a used one.

Overclocking:

Intel has realized that the overclocking/gaming fraternity is a meaningful business segment to market to, so in their latest i5/i7 CPUs they sell ‘locked’ and ‘unlocked’ versions; the latter can be overclocked and are $10-20 more. Such distinctions were not available for the earlier CPUs like the Core2Quad and Core2Duo used in the HackPro, all of which could be overclocked, so it’s more than likely that the three year warranty on your CPU will be rendered invalid if you overclock. However, if you use a competent motherboard like the Gigabyte, above, your risk of damage should be greatly reduced owing to the many failsafes in the motherboard’s code, or BIOS. Just avoid getting greedy and don’t use voltages which are too high. My selected speed of 3.6gHz is a fine trade off between the last word in speed and long term reliability.

Upgrading to iPhoto ’11

Software

Don’t pay twice!

Until I downloaded OS Lion on my MacMini a week ago, I had never made an online OS X AppStore purchase. So while the experience was painless, and I suppose over-the-air app downloads make sense for all but those cursed with bandwidth limits or poor broadband, I was still fighting an old prejudice whuch has it that you really want DVD versions of all your software in case something blows.

This is really a dated view and when I thought about it I realized that I have been buying and updating key applications from the likes of Adobe for at least a couple of years. My Photoshop CS5 upgrade from CS2, large as it is, was by download and if the installed app ever fails I can simply download it again, the input of my serial number ensuring that the replacement is at no charge.

And it’s time to move to the AppStore way. The iPad works flawlessly with the iOS AppStore and on the occasions the AppStore goes down a restart of a download has never resulted in any additional charges. Still, at almost 5gB, Lion did give me pause.

The AppStore approach for OS X devices brings with it Apple’s rapid obsoleting of the DVD drive. Having been among the early adopters of shipping software on DVDs, they have pretty much said the DVD is now dead. The MacBook Air has no DVD drive, the latest MacMini has removed it (causing much angst for Netflix mail renters) and I would expect it will not last long on the iMac either. For those pining after the DVD there’s a $100 plug-in DVD drive available at your local Apple Store and, to be fair, the latest non-DVD Mini is $100 less. Indeed, when Apple releases a ‘hard copy’ of Lion next month it will come on a minuscule USB flash drive, not on a disk. By the way, until streaming movie databases improve, I’m sticking with Netflix mail rentals where the 120,000 movie catalog compares favorably with the 12,000 or so available for streaming. Worse, owing to licensing agreements, the streaming catalog frequently drops movies. So for movie fans, the DVD is far from dead.

Whether you like Apple’s pushing of the limits here or not, there’s everything to like about their new licensing approach for software. Simply stated, any software purchased can be used on any Mac you own at no extra charge. So to test this out I went to the AppStore on my MacBook Air and bought the latest iPhoto ’11 for $15. No problem. I did not have to buy the whole iLife suite, as the AppStore lists the component parts separately.

Then I hopped over to the Hackintosh, and into the AppStore, but when I went to the iPhoto page it was asking me for another $15. What gives?

Call it poor instructions or user error; what you have to do is click on this icon in the AppStore application:

You will then see all your purchased/installed apps and subsequent downloads – click on the word ‘Installed’ – are free.

I suspect iPhoto is looked down on by many serious snappers as so much of an amateur toy. That’s doing it an injustice. The processing (Edit) controls have steadily improved, the integration with book making and card creation is excellent and it’s just the ticket for family snaps where Photoshop or Lightroom are overkill. Exporting to your web site is easy as can be. I have been using the BetterHTMLExport plugin with iPhoto for many years and am pleased to report that iPhoto ’11 is the first version which did not require reinstallation of the plugin.

The processing controls in iPhoto ’11.

Hit the option key on your keyboard and the ‘Exposure’ slider, top right, becomes a highlight recovery slider. Very handy and very fast and easy to use. iPhoto ’11 has no problems handling RAW files – the image above is from my G1 and the original is RAW, as indicated in the histogram.

My iPhoto library contains some 20,000 snaps and the update of the database to iPhoto ’11 from ’09 took some 15 minutes on my HackPro.