It is remarkable how fast photography has shifted from film to digital imaging. If you doubt the shift is all but complete, check the impact on Kodak. Shutdown of US film operations has been accelerated several times, many thousands of employees have been cut, and Kodak stock has taken a beating as the company struggled to find secure footing in a new digital imaging world. All of this was happening while Kodak invested millions in developing digital imaging solutions in a market that was shifting like quicksand.

Digital, of course, is the domain of the computer, and the transition of artistic photographers to digital has been anything but smooth. The artistic types distrust turning their vision into cheap Adobe Photoshop tricks, and the tech-savvy are so enamored of technology and editing that they often don't have a clue about what makes a good photograph and what lens to use in a given situation. As AnandTech prepares to re-launch Digital Photography reviews, it is important that our readers understand at least the basics of digital photography. That is the purpose of this guide.

There are plenty of Digital Camera Review sites out on the web, so you may ask why AnandTech is re-launching a Digital Photography section? If you are a photographer or serious photo hobbyist you have many excellent review sites already available. They do a great job of providing the kind of information the serious photo hobbyist is looking for. However, our readers who visit those sites are often overwhelmed with the sheer amount of information and the background required to make that information accessible. For a computer enthusiast who wants to learn about digital cameras to make a buying decision, many current sites are a difficult place to find answers. Some sites make the assumption that the reader knows a lot more about photography than our average reader, which often leads to much of the review being gibberish to a non-photographer. Other sites dwell on tests of things like "start-up times" that were important in early digital, but have become all but meaningless in today's digital SLR market unless you are a professional sports photographer. Still other sites, which are very well-grounded in the traditional photography side show an obvious lack of knowledge about computers and computer tools that make digital photography so flexible today.

Some of our readers may not like AT delving into Digital Camera Reviews, and to them we say you just can't ignore digital photography any more. Today's digital imaging is nothing more than an optic stuck on a computer, and unfortunately there is very little left of the mechanical gems that once ruled the world of photography. It is our sincere belief that we can do digital camera reviews with a unique perspective for our readers and computer enthusiasts everywhere, but please help us as we try to reinvent this wheel.

There are some things about photography that have not changed in the move to digital, however. In the end taking a digital photo is still basically dependent on the same set of "rules" as taking a film image, as the only real difference in digital and film is what happens after the image is captured. This is particularly obvious in looking at Digital SLR cameras, which are currently the fastest growing segment of the Digital Photography market. You will find all the traditional photography names here - Nikon, Canon, Pentax, Olympus, Minolta - and this is where the "real" photographers work. Names like Casio, HP, Sony, Fuji, Samsung and Kodak don't exist in SLR space - except as the odd offering based on the lenses of one of the "real" Photography companies.

The reasons for this are really quite clear. Digital and computer imaging have concentrated on the sensor and ever increasing megapixel counts, while the people who take photographs for a living have continued to concentrate on the quality of the lenses they work with and the images that they sell. In both film and digital, all other things being equal, the best quality lens wins. Of course the best quality lenses and the widest variety of lenses come from the traditional photo companies like Canon, Nikon, Minolta, Pentax and Olympus. These companies have taken years to develop their extensive line of lenses, and these lenses are the ones in the hands of photographers. Today, it takes a lot of money and effort to develop a new lens line. As a result you have amalgams like Samsung using the Pentax lens line on their SLR, a Fuji Pro camera using Nikon lenses, and past Kodak Pro Digitals designed for both Canon and Nikon lens mounts - two models for each Pro camera.


Recently Sony introduced their first SLR, and one of our first digital camera reviews at AT will be the new Sony Alpha or A100. So did Sony break the rules? Sony is one of the world's largest manufacturers of digital sensors - the chip that captures an image in digital format. In fact you will see Sony sensors in almost every brand of "serious" camera except Canon and Olympus. Sony makes sensors for Nikon, Pentax and Minolta. Canon is another huge sensor manufacturer and makes their own sensors for their cameras, while Kodak and Panasonic both make four-thirds sensors used by Olympus in their various models.

Sony has some very feature-rich and capable fixed lens cameras in their lineup, and their own form factor for memory, but Sony has coveted a big piece of the "serious" photography or SLR market. Sony apparently did not want to brand themselves a second tier player in the SLR market by offering an SLR for other brand lenses. Instead they entered into a joint development agreement with Konica-Minolta last year. Then, early this year, Sony bought the Konica-Minolta camera business and announced they would continue development of the 20-year old Minolta auto-focus lens system to work with their own new Digital SLR cameras.

The Sony Alpha or A100 is the first camera that marries Sony technology with the Minolta system. It is a new Digital SLR brand with a new Sony 10.2 megapixel sensor and an existing lens base of some 20 million Minolta Auto-Focus lenses. By purchasing the Konica Minolta camera business and assuming warranty responsibilities, Sony instantly became a major player with a full lens line. When you consider that only Sony and Canon make their own sensors for their digital SLR cameras you can clearly see what Sony can leverage in the DSLR market, and why they were willing to buy an existing lens line. Sony didn't break the rules, they just bought instant credibility in a market that is difficult to crack.

If you want to learn about digital photography you should find this guide a good place to start. If you are in the market for a new Digital SLR then this is a good place to gain the background to intelligently compare these cameras. The Digital SLR market is hot and we will be covering the six new 10 megapixel cameras that sell for less than $1000 in detail in the coming months: the Sony A100, Nikon D80, Canon Rebel XTi, Olympus E-400 (Europe/Asia only), Pentax K10D, and Samsung GX-10.

Digital Directions
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  • silver - Monday, September 25, 2006 - link

    I think this is one tidbit that you might write on when you're realy bored. My images are backed up using Verbatim UltraLife Gold DVD-R media. You also need to make sure that they stay cool and dry much as you do with film. They're not as sensitive to humidity but as certainly far more sensitive to heat.
  • Googer - Monday, September 25, 2006 - link

    quote:

    Names like Casio, HP, Sony, Fuji, Samsung and Kodak don't exist in SLR space


    Panasonic is makeing and selling cameras based on good old Leca Lens. If you have a leica lens from any point in the last 55+ years, it will be compatable with a Panasonic/Leica Camera.
  • Wesley Fink - Monday, September 25, 2006 - link

    The Pansonic Lumix DMC-L1 digital SLR uses a Leica lens built with a four thirds mount. This is the new digital only mount pioneered by Olympus. The LMC-L1 is mentioned in the guide.
  • silver - Monday, September 25, 2006 - link

    One of my friends has one of these and the images are simply incredible. He states that the Opticla Image Stabilization is simply the best he could find.
  • wilburpan - Monday, September 25, 2006 - link

    As someone used to shooting with film cameras, I can say that I still notice some shutter lag when using digital SLRs, even with current models. To write this off as "Virtually none of the lags of early digital cameras remain" is to ignore a real factor when it comes to the use of any camera.

    To put this another way, if a digital camera website stated that the choice of CPUs was unimportant in buying a computer because all modern day CPUs were fast and powerful enough, the readers of this site probably would bust a gut.

    There are also speed issues involved with other uses of a digital camera that need to be addressed. The Nikon D80 takes about 1.4 seconds to store and then display an image after the shutter has been pressed. The speed of this process varies widely from camera to camera. Similar variances in speed and performance come into play when performing tasks such as playback of pictures taken, the time that it takes to process bursts of photos when shooting in continuous mode, etc.

  • silver - Wednesday, September 27, 2006 - link

    Regarding shutter lag, digital cameras will always be slower than film. There's no way around that. My FM2n's have near instantaneous shutter release and are quite the opposite of my admittedly dated Fuji S602. What manufacturers need to do is to have separate power sources (batteries) for lens focusing and camera functions other than CCD/CMOS/memory charging. Obviously this would complicate the camera so they probably aren't considering this option.
  • Wesley Fink - Monday, September 25, 2006 - link

    This is where we start to get into questions about what test is real. The file flush time on a Nikon D80 is 2.0 seconds for a fine jpeg and a little less than 3s for a RAW+jpeg. However, you never encounter this becuase of the memory buffering built into the Nikon D80 and every other digital SLR camera. The D80 can do 3 fps for a little over 30 seconds shooting raw+jpeg, and with fine jpeg it can shoot 3fpm until you run out of flash card room or battery.

    I consider the D80 time of 160ms viewfinder blackout (0.16s), and a less than 0.1s from off to shot negligible for almost any users. Even the Sony, which has a 1 second start-up, is using almost all that time to clean the sensor before shooting, while shot-to-shot is very competitive with the best SLRs around. Some users might be happier if you could turn off the cleaning on start. While this may be very important for some users, it is doubtful that the small differences in recent digital SLR cameras will really be noticable or matter to most users.

    dpreview is an excellent and respected digital review site, and I have sent many readers there with their questions. They often come back with more questions than answers, which usually means they found the technical level too far above their skills and needs. We can't be all things in Digital Camera reviews so we will likely err toward the more basic side.

    We'll consider your suggestion about start-up times, but I'm not convinced yet.
  • yacoub - Monday, September 25, 2006 - link

    I appreciate your article but I don't know: I think that folks into digital photography, no matter what other hobbies they have, including computer hardware or gaming, are knowledgable enough (or are competent enough to gain the knowledge needed) to make good use of a site like DPReview, which offers about all the info most need to make an intelligent purchase of a digital camera. Plus that being their primary focus (and has been for years), they automatically get much more credibility than a computer hardware site can hope to achieve by writing content basically saying "look we can do this too!" and writing what most good highschool photography classes are teaching today anyway.

    I guess my question is, why not stay focused on computer component hardware? All branching out does is reduce the chance of the main hardware getting the attention it needs. There are umpteen motherboard, videocard, and RAM reviews and guides yet to be completed or even begun, yet you're going off into digital photography land? That's kind of disappointing. For that hobby there are already many strong resources for folks who are into that, and many more for folks who want a simple pocket-sized point-n-shoot (which is the majority of folks). Why not focus on being the strong resource in computer hardware that folks in this hobby need?
  • fanbanlo - Monday, September 25, 2006 - link

    Maybe AnandTech can explain to use what are the new technology built into the sensor rather than meaningless marketing terms givin to them.

    Different algorithm used? what's their computational power?

    Why shoot RAW? RAW-enabled software review!?

    Thx
  • Heidfirst - Monday, September 25, 2006 - link

    For the lower end DSLRs (D50,350D,K100D etc.) I think that you should also review the standard kit lens as the majority of buyers will probably be buying it with the body as a package.
    By the time that you start hitting EOS30D type level imo most people will probably have lenses already or be buying a better lens than the entry level kit lens. Also if they are paying that for a body they quite probably are reasonably knowledgeable photo enthusiasts & maybe Anandtech isn't going to be the first place that they look for reviews so sticking to the lower end at least initially sounds reasonable to me.

    The idea of a standard test scene is interesting but it would have to be reproducible which means in the studio & that means that it's less representative of the conditions in which most people will use them (I imagine that the % of even current DSLR users who shoot in the studio is in single figures & probably low single figures at that).

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