Tuesday, July 14, 2009

Why So Small?

I bought a digital camera a few months back, a Canon PowerShot A590. While it was not too expensive, I'm still trying to figure out one thing- it came with a mere 32 MB card. This simply doesn't make much sense. If they want to be so cheap about it, they could just leave it out all together. I have a whole box of cards, and the next smallest one it 128 megs, on up to 4 gigs. They should at least include a 256 meg card in my opinion, or just not bother. What a waste, that I now toss this card that I will never use. Does this make sense to anyone? Maybe they should just include a coupon in the box for $5 off a memory card of the user's choosing.

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Tuesday, December 18, 2007

Nudgecast 12/18/07

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Thursday, December 06, 2007

Camera Shopping

I find buying a digital camera a frustrating experience. Often, it can be difficult to find the right information about a camera. For example, many of the hardcore camera sites really focus on digital SLR's, and don't get involved with the point and shoots at any level of detail. I also find that many sites, including PC Mag which does a good job with many products, has an "Editor's Preview" of some cameras, totally based on the specs regurgitated in prose, and never using the camera firsthand. Two good websites that actually do a really good job of testing camera gear are DP Review and DC Resource. However, they are both hampered by the same challenge that their review process is so exhaustive that they only get to a minority of the cameras that get released in any given year.

Fear not, I wouldn't be posting this if there wasn't an answer of some sort. While it doesn't replace a review, I suggest that you check out some images made with the camera. This is also useful to supplement reviews for a specific question about a camera, such as how the performance in night photos, or action will be. Once you know where to look, it can also be instructive to see what amateur photographers can capture with a camera, as most of us are not pros in a studio.


The answer is to head on over to Flickr, which is an online photo sharing site, and one of the larger ones. Jump on over to the Camera Finder section, and find the model by manufacturer. They have just about every model, as long as someone, at sometime, uploaded a picture with that camera. Then we can see if the colors are really bold, or simply oversaturated, before we plunk down our "one way cash" on that new camera that cannot be returned in most cases. Other features include the ability to see the most popular camera (Canon EOS Digital Rebel XTi), or the most popular camera in a phone (Nokia N73).

Happy shopping!


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Tuesday, November 13, 2007

NudgeCast 11/13/07

Talkin' about choosin' digital cameras.

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Tuesday, October 16, 2007

Making Sense of Digital Cameras

From the Bear Den...

It used to be so easy. You walked into a store, selected a camera from three or four choices, and you're all systems go take your photos! Now you go into a store to purchase a camera and there is a HUGE selection, with all kinds of options you never had to deal with in the past! Here are some helpful tips to help understand this digital photography technology.

Digital and Optical Zoom: Ignore digital zoom, it is pretty much worthless. Optical zoom ranges are what you need to look for. (Editor's note: I think of digital zoom as "in camera cropping.")

Batteries: The advantage of AA batteries is that you can run into a store and purchase batteries when you are traveling. Recall that battery technology has come a long way in the past few years; they stay charged longer and cost less. For everything you wanted to know about batteries and more, see here.

Memory cards: The 2 big memory formats are Secure Digital (SD) and Compact Flash (CF), although there is no shortage of other less common formats. The purpose is the same- storage space for your photos. What other equipment do you own and what memory formats do they support? If you'll be taking a lot of burst shots, you will want the fastest memory you can get (Ultra IV), but such speed comes at a premium price.

Along with strides in technology, we have to deal with new terms, options, specifications and designs. It’s not as hard as you may think. However it can be a bit overwhelming and frustrating if it’s all new to you. Let’s break down digital cameras into actual applications people would intend to use them for...


Ultra-Compact Cameras are the smallest cameras and are also referred to as Pocket Cameras. These cameras are very handy due to their small size. You can carry them in a pocket or purse and they are always there when you need them. Of course that is the reason they make camera phones right? In the past few years megapixels have increased and you can now find these camera’s in the 6 to 8 MP range. The big drawback is the optics in the lens suffers due to the small size. These cameras are fine for face or group photos, but you will not get a very big zoom range and landscapes will suffer due to the small aperture of the lens. Your photos will not produce the vast depth of field you would see in a camera with a larger lens.

Compact cameras are larger than the Ultra-Compacts. While these cameras may still be small enough to fit into your pocket, they tend to weigh more. One of the reasons for the increased weight is due to a larger lens. You will also see an increase in optical zoom ability to 3X or even 5X and also have more manual controls available.

Super Zoom cameras are not as large as Digital SLR’s cameras, but they are large enough that they are going to need to be carried in a camera case. These cameras offer great optical zoom capabilities of 10X or 12X and have a large lens that with produces a good depth of field. They will offer the user much more control over the camera. Options such as image stabilization will be required with a super zoom camera. These cameras are best suited for the traveler when you will be taking various photo subjects from portraits to landscapes to nature and wild animals.

Digital Single Lens Reflex (DSLR) cameras have really come down in price over the past few years and offer the photographer the most control and capture the best quality of photos. When you look through the viewfinder of a DSLR you are looking through actual lens. This camera is for the person that is going out “to take photos” or doesn't mind carrying a large camera on a trip. While they are the largest and weigh the most, you gain the capability of additional lenses for different applications. They also cost the most, but wow you will capture some really fantastic images!

So you can see that different cameras are really meant for different occasions and applications. Because of this, many people own more than one camera.

In closing….

Look at the occasions when you will want to take photos and you will easily determine what type of camera you are really going to use most often. This will make your choices fewer and easier for sure!

-Bear

 

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Sunday, September 23, 2007

Video Tapes Gone In A Flash

For decades now, a camcorder was the one electronics device that I wanted, but did not actually acquire. This has been due to a variety of factors, which I’ll share, and as we proceed, you’ll see where I see the future of home video recording is headed currently.

The first time I saw a video camera in use, I was in middle school. One of the parents literally made a spectacle of himself by setting up a large camcorder on a tripod. This was fed into a portable VCR that was connected by multiple wires. He had a microphone mounted on the camcorder’s top, and had headphones on straight out of a recording studio. Amidst the taped down wires, and high end gear was just another parent trying to enjoy a school concert. While my first thought was “Cool!” I quickly realized that this was anything but portable, and he probably had a sherpa along to lug the gear back to his automobile at the evening’s conclusion.

Back in the early 80’s, the video went to a full sized VHS tape in some type of portable VCR. As time went on, things would get smaller, we're talking a lot smaller... eventually. The full sized VHS tape gave way to VHS-C, a more compact format that in an adapter could fit into a regular VCR for playback. Things were getting down to a self contained unit at this point. Sony, never wanting to accept a standard that they didn’t invent and control (aka: profit from), pushed the Video8 mm tape format. This gave way, in typical Sony planned obsolescence fashion to Hi8, and then on to the Digital8 mm format. While these 8 mm tapes couldn’t play back in the VCR, they did provide a compact memory format to build a camcorder around. Competitors pushed back, and offered a new digital tape in 1994, even more compact, known as miniDV which gained popularity, and is still used in many tape based camcorders to this day.

After digital tape, and with the need for more memory with hi def cameras on the horizon, manufacturers weren’t sure which direction to go in. In my view, they mistakenly pursued cameras that would record directly to discs. This was probably encouraged by companies looking to sell piles on mini discs, or the easy marketing strategy of "direct to disc" by consumers eagerly embracing DVD's for their movies at home. While the advantage of DVD playback was inherent in these discs, that advantage was outweighed by storing the delicate media while mobile, compatibility and stability problems with rewritable discs, and price premiums for the mini discs compared to the larger full size brethren. I can say that many users have enough problems burning DVD media on their desktop computer so that attempting to do this on a mobile video camera becomes a challenge that is not worth undertaking.

The latest attempt to get more storage for hi def video has turned to hard drives. Now that even miniature hard drives, like those that power the current iPod Classic, offer cavernous capacities in diminutive form factors, for the high end gear, this is a reasonable storage solution.

In my own case, for many years, camcorders were simply too expensive. When a low end camcorder was north of $500, I figured I really had to love it to justify it, and I never reached that point. Complicating things were that the computer needed a firewire port in order to import video from a tape, and they are not nearly as common as USB. Finally, when I investigated the batteries involved, and realized that they were all very proprietary, had limited life, and were quite expensive, it was a serious deal breaker each time. I chose a digital still camera back in 2001, and figured I might get a camcorder at “some point.”

Currently, camcorder prices have finally fallen to the point of affordability. There are decent cameras for less than $300, and for a few hundred more, we can get something that is really good. However, at least for now, I seriously have no interest in these devices.

In our current era of really mini electronics, many of the current camcorders simply seem too large. I know that if it doesn’t fit in my pocket easily, the odds of me using it routinely go way down. The issues of proprietary batteries, and piles of media never really got solved in my mind.

Looking at this objectively, the digital cameras are winning the battle. While there were many attempts at convergence, and the mythical “total imaging” device that could handle both stills and video equally well never quite emerged, the digital cameras got video added to their bag of tricks. In the end, while camcorders could shoot stills, they were of generally low quality. While we could argue that the video shot by digital cameras was also of low quality, I would still characterize it as acceptable quality, especially on a standard definition television set. The other tie breaker is the media. Digital cameras, with a few exceptions of Sony (oddball again!) venturing into floppy discs and mini CDR’s, have been flash memory based devices. This means that it is far easier for consumers to download their content, especially with a built in or USB flash card reader that many computers have these days. Add in the standard AA batteries and that many digital cameras fit in a pocket, and it becomes an easy choice for the consumer to choose the digital camera over the camcorder.

The other issue is what will be the final destination for the video. For an amateur filmmaker, then a camcorder is the way to go. For the rest of, to just save some clips, or to email them, or for online video postings, then a digital camera is more than adequate. The so called “You Tube friendly” cameras, like those from Casio, produce highly compressed video that is ideal for this. By using the MPEG-4 format, compression enables an hour of standard def video per hour.

The newest class of devices, exemplified by the Flip Video, also are ideal for online video postings. By taking the blueprint for a digital camera, and then reengineering the device for video over stills, they can produce an affordable product, with a lot of capability, that’s easy of use, and fits in a pocket. In fact, this is now an emerging market segment with new products from both Samsung and Sony's Netsharing Camcorder entering into the foray.

So, where are we going with all of this? For now, I’m not planning on getting a tape based camcorder, now or ever. When I buy my next imaging device, it will almost certainly be a digital still camera with video capability. With flash memory able to offer ever larger capacity cards at reasonable price points, it’s really the way to go to capture video. If I need more video capability, I’d look towards a flash based video camera.

--Jonas

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Tuesday, August 28, 2007

NudgeCast 8/28/07






For this week, all I'm going to tell you is that these two images that I've included here figure into what I'm talking about.

--Jonas

BTW, we went with blip.tv for the improved audio quality, hassle free uploading, and better exposure.

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Tuesday, August 07, 2007

NudgeCast 080707

In this week's NudgeCast, I offer some notebook buying advice, talk about a disturbing trend in digital cameras, and also comment on the latest trend over at PC Magazine.


Or take a listen/download here.

--Jonas



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Sunday, July 15, 2007

YouTube Made EZ

There's no doubt that the video site YouTube is extremely popular. They have more content than anyone can ever watch, and the key is that it can be viewed quickly thanks to its flash video format. However, despite the millions of videos that get viewed daily, only less than one percent of users to the site upload content.

It's not that there aren't plenty of affordable video cameras on the market, cheap webcams plugged into computers, or digital cameras with a video mode. The reason for this is that it's too difficult for the average user to shoot a video, edit it, and upload it, not to mention that they may have to convert it to a preferred format. However, I'm noticing a trend of new products that can simplify the process considerably.

The first is called the Flip Video Camcorder. Forget about complicated and expensive HD camcorders with DVD drives and Firewire connections. This product goes totally in the other direction and is akin to a high quality webcam with built in memory and power. There are two versions: 512 megs for $119, or 1 gig for $149. That amount of storage lets us save 30 minutes, and one hour of mpeg-4 video respectively. This all gets transferred via a flip out USB port. The video is 30 fps at a resolution of 480 x 640 which is better than much of the stuff I see on YouTube. While I'll reserve judgment until I see one of these in the wild, and the video it produces, it looks like this purpose built hardware may be what the YouTube masses want. I found some more info about this product here, including that it runs on AA batteries which should keep the cost down.

Now that digital cameras are all starting to feature the same specs, they're also looking to stand out from the crowd. This week I encountered a press release about a pair of new Casio cameras. The two new cameras, the EXILIM Card EX-S880 and EXILIM Zoom EX-Z77. They are basically a new 7 and 8 megapixel point and shoot camera for under $300. The intriguing feature is that they can both shoot mpeg-4 video, also in the 30 fps, 480 x 640 resolution. They also include software specifically to be able to upload the content to YouTube.

As we in tech are always looking for the next "big thing," I think what I'm dubbing "YouTube EZ" may be it. Or at least it's a little "big thing." The ability to create video content, and share it is incredibly powerful. I would expect more products to feature YouTube friendly mpeg-4 video capture at affordable price points as we prepare for this year's holiday sales. After the trouble I've encountered trying to edit and transcode the Quicktime video my current digital camera captures video in, I'd say it's about time that it got much easier.


--Jonas


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Friday, July 13, 2007

Megapixel Madness!

I recall the earliest digital cameras, and their 480 x 640 resolution (a buddy of mine had the one pictured to the left). For the PowerPoint presentations that we were making, the resolution was actually ok. They were really a great solution to the problem of taking images of procedures in the operating room.
We generally only need two or three images in most cases, and with traditional film, it was a waste of the rest of the roll. It was also great to be able to view the image on the screen, and confirm we got the shot, many of which involved unusual angles to see some structure, and after we "closed up shop" we wouldn't be able to recreate the shot again.

Years ago, the debate raged as to how many megapixels equal photography film. Usually the standard held up for for film was 35 mm, although larger formats would offer even more resolution. I heard estimates as low as 6 megpixels on up to a max of 16 megapixels. As film is a continuous emulsion, and not broken up into pixels, I'm not sure there really is an answer to this question. While we can scan a negative or a slide into 16 megapixels, for example, it may say more about our scanner than about the film itself.

Now that I'm shopping for cameras, I'm noticing that the resolutions have been way ramped up. It's getting hard to buy anything that's less than five megapixels currently. There are also plenty of cameras under $200 sporting 7 and 8 megapixel resolutions.

I'm not sure this is such a good thing. After all, the more pixels captured means that the memory card will have to store more. Also, this means more space on the hard drive. When we start scaling up the hundreds of images that folks capture throughout the year, you can start to appreciate the issue, as well as the challenge of backing it up.

Of course, hard drives keep growing, and should more than be able to keep up. Also realize that compressing the images further only degrades their quality, introduces artifacts, and pushes the appearance down to a lower resolution image- or worse.

I'm wondering what folks are doing with all of this resolution. Most of us really only print out stuff at 4 x 6 inches anyway. Occasionally, I do a 5 x 7 print. Both turn out fine from my 3.3 mp camera. When I was shooting film, I never printed anything larger than that either. I doubt that most users will print anything beyond that size. So what is this resolution getting us?

I think that the magic megapixel number is becoming an advertising ploy. It is like the processors a few years ago. Isn't it great, it runs at 3.8 GHz... even if the processor is running too hot, and offers only a marginal performance bump above something slower. The same has happened in the photo industry. While there are new technologies that will improve the experience, like antishake, it's too hard to sell that to the masses. So with each new crop of digital cameras, the formula is to simply add another megapixel to make it sound new and so much better.

I really don't know if or when this will end. Many of these cameras are limited by a plastic lens, and while the sensor's resolution grows, the image quality is no better. Personally, I think that anything beyond 5 or 6 megapixels, unless planning some serious cropping, or really large prints is kind of a waste. In the meantime, we still don't know how many megapixels equal 33 mm film.

--Jonas

 

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