Showing posts with label cameras. Show all posts
Showing posts with label cameras. Show all posts

Wednesday, February 17, 2010

Next camera for the mission

Back in November I achieved the long-sought goal of acquiring the means to capture a scene in three dimensions for real. Given the nature of the weather, I haven't been able to put it to much good use yet, but I'm intending to put it through its paces once the temperature is routinely in the positive numbers again... moreso when it's double digits.

As much as I've always wanted to shoot scenes in 3D without having to worry about whether or not a leaf moved in between exposures – much less anything larger (which has meant that 3D photograph in an urban environment was essentially impossible for me previously), it was never my intention to use the medium exclusively. Frankly, I don't think we're there yet. The facilities for people to routinely view things in three dimensions are probably still years away, and it's a difficult medium to work in (how do you stitch together three or four 3D images into a coherent panorama, for example?). I've continued to carry the G9 with me alongside the W1, and most of the time, I've preferred the G9. The W1 comes out for the icing-on-the-cake shots. This is particularly true since the image quality on the W1 is relatively poor... I don't say that with an air of disappointment; I knew that before I bought it. This is the state of the art, such as it is; it was either this or I waited years to start capturing views in 3D. But when capturing the volume of a view isn't crucial, I tend to prefer the G9. I don't now, and didn't last November, imagine I'd be leaving the G9 on the shelf with the W1 doing it all. It does what it does; the G9 does the rest.

Still, times change, and technology moves on. I've had the G9 for two years now and it's been excellent. But I have my eye on another camera now, one that will provide both new abilities and a streamline workflow for the Millennium Project of recording the here-and-now for posterity. The camera is the Cyber-shot DCS HX5V, one of Sony's two new entries with pretty much the same abilities (the other being the slightly more expensive TX7). There are some cutesy features about the new pair that I wouldn't miss if they weren't there; wireless transfer to certain devices, face recognition, cropping images inside the camera, etc. But they do have some abilities that make me reach for the HX5V.

 

What it won't do

The G9 shoots RAW. That was important to me when I got it, principally because it meant I would have the ability to squeeze shadow and highlight information out of the sensor's recorded data and form a single, wide-ranged HDR image without having to shoot multiple exposures and, again, worry about what moved in between. Like the old S80 I carried around for nearly three years, the HX5V does not record in a RAW format. Strangely enough, when I read that, I didn't have the reaction I would have anticipated. It wasn't so much a turn-off as it was a liberation. One of the things about having the ability to shoot RAW has been the sense of obligation it's imposed on me. For years I've vacillated back and forth using the XT and G9, shooting RAW to get the best image, and then remembering what a huge pain in the ass it is having to process every single image just to get something I can post on Flickr, and going back to shooting JPGs... then looking at all these 'compromise' images and cursing myself for not shooting them RAW... you see what I mean. Combine that with the fact that RAW tends to take up three or four times the space on a drive as the equivalent JPG image and it's been kind of a headache. If technology dealt with RAW images as readily as it does with JPGs and a 12MB file size weren't an issue, I'd shoot RAW all the time. But it doesn't, and it is, so having that decision taken out of my hands is, strangely, sort of a relief. I didn't think I'd see it that way.

The HX5V also doesn't have in-camera controls for sharpness, saturation, contrast, and the like. I'm not overly bothered about that because I never messed with that stuff in the camera anyway. Sharpness? Either a shot's clear or it's not; if it is, I'm certainly capable of improving it in Photoshop. Ditto the colour.

The G9 has a time-lapse video feature that's kind of kicky, fun to use experimentally, but really, hasn't amounted to much for me. I know how to do the same thing with far more compelling results using real-time video and Premiere. So that's not something I'll miss day-to-day either.

The HX5V doesn't have an optical view finder. Now, even though I haven't used a view finder on any camera but my XT since about two weeks into owning the S80 (got tired of nose smudges on the LCD), it kind of bugs me that I'm forced to depend on a battery-powered technology to compose shots. I shouldn't be; it's been how I've been doing it for about five years now, but... I just don't like not having the option. Still, obviously, it's not central to my concerns.

What it will do (why I'm interested)

The thing that led me to discovering this camera was that I'm increasingly fed up with the way I have to embed GPS data in my photographs. The process is cumbersome and cranky at every turn. First, there's the PhotoTrackr itself. When it works, it works pretty well, but there are times when it completely fails to bring up a signal. Secondly, it's often out of sync with the camera(s) in question, and when you're moving in a car, even six or seven seconds makes a difference that could, one day, be really misleading to someone without the same visual references that exist today (I mean, that's why they enabled GPS in EXIF in the first place). Sometimes the battery runs out. The software for transferring and applying the log files, not infrequently, can't find the PhotoTrackr on the COM port it's expecting to find it. All told, it works, but not as well as I'd like. Honestly, it's like working with 1990 technology in 2010.

The HX5V has GPS built into it; it's among the first cameras that do (there have been others over the past two or three years, but surprisingly, not that many). I think soon, this will be the norm, but for now, it's rare. Now, I don't know the HX5V will be any better at acquiring and keeping a signal than the PhotoTrackr. But even if it isn't, it eliminates the concern about a separate battery dying (if I run out of juice on the camera, I don't NEED the GPS facility anyway), and the rigmarole of uploading log files, matching them to photos, and having to overwrite the metadata.

Relatedly, the HX5V also has a compass, and can not only record where the photo was taken, but in which direction the camera was oriented. This is actually something I can't do now, and have been waiting to see for over a year. Someone has finally done it. I can't tell you the number of times I've looked at old photos – and not just those taken by others 50 year ago, but my own from unfamiliar places just a summer or two in the past – and spent ages arguing with myself as to which way I was looking. This facility will, hopefully, spare people in the future that kind of head scratching. Even if those "people" turn out only to be me!

The HX5V also has a couple of new facilities that will save someone like me a lot of time in post-processing. First of all, it has what Sony calls "Intelligent Sweep Panorama". That is, the camera itself has the ability to generate a panorama simply by the user sweeping it through (approx.) 130, 180, and 270 degree sweeps. The camera, which can take 10 10MP photos per second, does the work to sew the view together. Apparently, it even compensates for moving objects in the scene, though I'm not expecting great things from that. Basically, if I can stand on a hilltop or a sleepy rural intersection and get a lovely pano of what it looks like today in three or four seconds, without having to spend 15 minutes finding the photos and dragging them into another application that, as often as not, ignores half of them or craps out when the memory ceilings, that'll be just fine with me.

Another thing that will save time, if it works as advertized, is what Sony calls "Backlight Correction HDR". One of the things I've always hated about digital photography is how it never seems to represent the range of shading you remember having seen with your eye... a blue sky and details in the medium shadows. Probably it's an illusion, a trick of the mind in retrospect, but nevertheless, that's how we're used to thinking we remember seeing something, and how we expect to see it represented. The HX5V has the ability to take two different exposures in a faction of a second and merge them into an HDR shot that extends the range of detail, so that highlights and colours are preserved and shadow detail is recorded, all in the same shot. That's something that used to require a lot of work in Photoshop and, realistically, a RAW exposure (or three rock-steady AEB shots across two seconds and change). If I can routinely have pleasing shots of earth and sky together, right out of the camera, that will be gratifying.

The camera also has an image stabilization system that seems to have come from Sony's camcorder line. I gather Sony has only recently gotten over its fear of cannibalizing sales by porting its good ideas from camcorders to point-and-shoots; the facilities they've given the $450 (CDN) HX5V were features of Sony's $1000 HDRTG5V camcorder just last year. Among them is a gyro-managed optical stabilization system that, I'm hoping, will make for better road videos as we record the roads of the rural fringe that will one day be the wide boulevards of shopping malls, condo complexes, and housing tracts. The camera also records in full HD, though given the memory and speed requirements, I'm expecting to use that rather sparingly.

There are down sides to it. I don't think the battery usage is as robust as it is on the G9, for one thing. I'm concerned that the only format for images is JPG, because it's a lossy format, though if they're using minimal compression and the optics are good that shouldn't turn out to be a big concern; after all, the idea is to record something that will be informative 25, 50, or 100 years from now, with as little overhead on my end as possible. I believe this camera will do that and be the workhorse for the next two or three years of the project. Hoping to get hold of one within the month. Stay tuned.

Tuesday, January 20, 2009

Everything old is new again

I had to look it up, but here’s what I know. I bought a second-hand PowerShot G9 early in January last year. Shortly afterwards, in fact, just a week short of a year ago, I sold my PowerShot S80, which I’d carried around for 20 months, to my friend P-Doug for, if memory serves me, $200. That spring, I threw in a spare battery, since he only had the one.

Ever since then, I’ve taken just shy of 10,000 still and moving images with the G9. I’ve dropped it at a basketball game, lost it at a dusky roadside (where it was apparently hit by a passing car) and then found it again after driving half way across the city, and taken it tubing down the Grand River, where its companion, an infrared-reconfigured PowerShot S70, was drenched and cost over $300 to repair. And for all that, I’ve found that I’ve missed the lightness, compactness, and ease of access and control the S80 furnished. And so every so often, I’d look around… eBay, Craigslist…

A couple of weeks ago, I found one being sold on eBay with a starting bid of $35 on it. It was broken – the lens had come open in the guy’s pocket and jammed, leading to the dreaded E18 error that plagues PowerShot cameras. I read up on it to find out what it would cost to repair it, and learned that in such cases, it’s often possible to gently work the lens assembly such that the gears pop back into alignment. So, I bid on it; $51, which raised the bid to $36. The day before the auction ended, someone bid $45, which boosted mine to $46. I decided to hedge my bets and raised my bid to $66. The day the auction ended, a Saturday around noon, I was sitting in the Bishop and the Belcher with P-Doug, keeping an eye on the auction using a wi-fi connection and my little Eee laptop (which I got free from my bank... remember when they used to give you toasters?), refreshing the page every few seconds. With seconds to go, some troll out there bid $52 – which ironically enough would have won it for him if I hadn’t previously raised my limit. In the last six seconds, he gambled I’d bid sixty bucks, and bid $61.05. That raised my bid to $62.05, and he didn’t have time to respond. Screw you, asshole. >:)P

So, for sixty-two bucks US, plus postage, I wrangled… a broken S80. It was a gamble. I hoped I’d be able to overcome the E18 error myself, but if not, I knew a place where I could get the work done. The question was, would it be worth doing? I’d already blown $300 on a camera in the summer I would never have bothered to fix if it weren’t reconditioned to shoot infrared. But, the fellow at the camera shop reckoned it could be fixed for “about $92”… weird number, but that’s what he said. So I felt like one way or the other, it would pay off.

Well, the S80 arrived today, and I started to gently work on the lens assembly. Within a couple of minutes, I heard the “click” while working on the innermost element. I put the battery from my G9 into it, and the S80 sucked the lens assembly back in and then extended it again, and I had a working S80 again. Oh, it sounds rough opening and closing, and I might want to see if there’s something cost-effective they can do about that, but the point is, I got a real bargain. So, after a year, I’m back in the saddle again with an S80.

I’m undecided, just yet, how to handle the issue of the cameras. I don’t hate the G9. It shoots RAW, it does voice recordings, it does better videos than the S80 without the high-pitched whine… but it’s big. Half again as big as the S80. The controls aren’t all gathered to be worked easily with your right thumb. So I’m not sure. I suggested to P-Doug, once I’d won the auction, that I thought maybe the G9 would be my “winter” camera – since I’m not carrying the S70 to shoot infrared much in the winter – and the S80 would be paired with the S70 (as it was in the summer of 2007) to be my “summer” camera(s). I guess we’ll see. Right now, I’m just jazzed to have an S80 again. I honestly don’t know why Canon axed them so quickly; they were only out about eight or nine months – or why they killed off the S line with the S80. An S90, that could shoot RAW (which the S70 can but S80 can’t) and maybe had a bigger, Digimarc III sensor, would have been a big hit, I think.

Wednesday, January 09, 2008

Weapon of choice

Weapon of choice

The Canon PowerShot G9... I've wanted this one since before it existed. I balked at the G7 because Canon was on a bent of removing RAW from anything below their DSLR range, and I already had the PowerShot S80, which had had RAW removed from it, though the S70 and S60 and likely others prior had featured it.

When Canon announced the G9 late last summer, I took notice. I saved up and started looking around for a deal, and I actually bought this one, used, yesterday from a professional photographer in Ottawa-Gatineau for about 75% what it would have cost me retail. It arrived today a little after noon hour.

Compared to the S80, it's larger and the controls can't be managed with just your right thumb. But it features the DIGIC III processor, a step up from the S80's, including face recognition and image stabilization. I've already noticed it's somewhat better in low light conditions than the S80. Added to that the images it captures are 50% larger, so there's more detail to work with. It also takes 58mm filters with the adapter I also got from the photographer, and I have several of those due to owning the 18-55mm lens that comes with the Rebel XT. So I'm looking forward to putting this one through its paces in the coming year or so. Hoping to use it at the Royal Ontario Museum this coming Friday night. Stay posted.

Wednesday, April 04, 2007

Creepy cameras

Now this is just creepy. England is weird. I mean, Orwell wrote 1984 there, but this still seems to appeal to them. I know, I know, I know, cameras are everywhere these days, but I find the idea they're taping me at the ATM a lot less disturbing than the idea that some government-appointed Jiminy Cricket is staring at a monitor waiting to shout me down if I pick my nose or don't excuse myself after burping. This crosses a line for me.

From the Beeb:

'Talking' CCTV scheme expanding

Talking" CCTV cameras that tell off people dropping litter or committing anti-social behaviour are to be extended to 20 areas across England.

They are already used in Middlesbrough where anyone seen misbehaving can be told to stop via a loudspeaker, controlled by control centre staff.

Home Secretary John Reid has earmarked nearly £500,000 to add speaker facilities to already-existing cameras.

Critics say the cameras are absurd and an intrusion into everyday life.

Mr Reid told BBC News there would be some people, "in the minority who will be more concerned about what they claim are civil liberties intrusions".

"But the vast majority of people find that their life is more upset by people who make their life misery in the inner cities because they can't go out and feel safe and secure in a healthy, clean environment because of a minority of people," he added.

The example they give:

1. Pedestrian is spotted leaving can on bench.
2. Talking camera: "Please fetch your can."
3. Talking camera: "The bin is behind the phone box."
4. Talking camera: "Thank you for using the bin."

How it ought to go down:

1. Pedestrian is spotted leaving can on bench.
2. Talking camera: "Please fetch your can."
3. Though morally a douchebag, pedestrian exercises his free choice and gives camera the finger.
4. Assholes all around, but a blow for liberty is struck!
5. Next time, pedestrian realizes he was being a jerk and "bins" the can on his own. Hopefully.