Many predicted that 2007 would be the year of the digital SLR, and industry shipments confirm the huge growth in DSLR sales. In a time where home sales fell through the floor in the US and gas prices began to soar, digital SLR sales have grown dramatically. In the third quarter of this year digital camera sales increased 22% compared to the previous year, but industry breakdowns show DSLR sales almost doubled in the same period.

That means that this holiday season many of you will be looking for a new digital SLR camera to replace an aging point-and-shoot digital or an earlier DSLR. While there haven't been many new entry-level models in the last year, the $1000 "advanced amateur" models of last year are today's entry-level DSLR. Several manufacturers have also redefined "entry-level" SLR down to $400 and have very capable models selling for that price, including a lens.

Only a few new models have appeared in "Entry-level" this year. We will cover these in a look at entry-level choices. However, the last few months have seen a deluge of new "prosumer" digital SLRs aimed at the photo hobbyist, advanced amateur, and even some pro photographers on a budget. The important thing about the advanced amateur and prosumer DSLR markets is the influence those cameras will eventually have on entry-level models. For that reason, we will explore some of the most interesting features of the new prosumer models.

The digital SLR market has also seen the downward push of pro or near-pro models into the consumer space. A prime example of that is the Canon EOS 5D full-frame SLR. When it was introduced a couple of years ago it was hailed as a true bargain at around $3500. If you look around today, you will find this popular semi-pro model has dropped to a $2499 list price and you can actually find the 5D for around $2000 if you shop carefully. That is certainly close to the $1400 to $1800 prosumer price range, providing an additional option for photo hobbyists or pros looking for a good buy.

If you are shopping for a digital camera but you're not really a photo hobbyist, you might want to start with our overview of digital photography in Digital Photography from 20,000 Feet. In that introduction, we cover the terms and concepts used in this DSLR Buyers' Guide. If you're already a photo hobbyist then dive in.

To put the current DSLR market in perspective, the full-frame (24mmx36mm) sensor and the Olympus 4/3 sensor (13.5mmx18mm or half the diagonal of full-frame 35mm) represent the two ends of the current DSLR market. Full-frame DSLRs use traditional 35mm lenses, so you don't need to worry about multipliers. 4/3 is a digital-only standard supported by Olympus, Leica, Panasonic, Sigma, Fuji, and Sanyo. Lenses designed for 4/3 will work on any 4/3 camera and they are not designed to be used with larger or smaller sensors. Since the sensor diagonal is half the size of 35mm, the 4/3 lenses behave like 35mm lenses that are twice their focal length.



You can see these two ends in a Canon 5D with an optical image-stabilized 28-135mm lens sitting beside the diminutive Olympus E-510 with a 14-42mm lens and body-integral (mechanical) image-stabilization. The full-frame Canon 1Ds Mark III, 1D Mark III and upcoming Nikon D3 are even larger than the EOS 5D, but you get the idea. Similarly, the Olympus E-410 is even smaller than the E-510.

However, the majority of today's digital SLRs fall in between these two standards, using a very nonstandard sensor somewhere around APS-C size (22mmx15mm). This is why we have a range of lens multipliers on today's DSLR cameras, depending on brand. Nikon, Sony, Pentax, and Samsung are at 1.5x, Canon is at 1.6x, and the specialized Sigma Foveon sensor is at 1.74x. These multipliers represent how 35mm lenses will appear on these cameras - because they mainly use 35mm lenses. That means an 18-70mm lens on a 1.5x camera would appear like a 27mm-105mm lens on a 35mm film camera. There are also dedicated lenses for these in-between sensors with names like DX. They work fine on the digital SLR, but they are not usable on full-frame DSLR or 35mm film cameras.

It isn't as complicated as it sounds, since you mainly will pick your camera brand and stick with it, buying camera maker lenses or those compatible with the DSLR you choose. However, understanding the larger picture also helps in making informed long-term buying decisions.

Prosumer SLRs
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  • melgross - Saturday, November 24, 2007 - link

    I doubt that any of the cameras were actually tested. They just seem to be his preferences, sometimes, based on incorrect information, or lack of understanding.

    I agree, stick to computers.
  • Wesley Fink - Saturday, November 24, 2007 - link

    Corrected the typo to 5.0fps.

    I personally have spent time shooting with EVERY camera mentioned in this Buyers Gude except the Nikon D300 which supposedly has just started shipping.

    This is a Buyers Guide based on my experiences using these cameras. It is not a review. My first SLR was a Pentax over 40 years ago and I have owned and used almost every 35mm system over the years, and even shot medium format exclusively for several years. I made a living as a Professional Photographer for two periods in my career.

    It is very easy to profess to know everything, but quite difficult to admit there are many things you don't know. I don't know everything about photography, but I suspect I have much more valid experience to write this Buyers Guide that most who would tackle this. I also have an open mind not severly blinded by conventional wisdom or marketing hype, which is why I have been writing for AnandTech for quite a while.
  • Wesley Fink - Saturday, November 24, 2007 - link

    Corrected the typo to 5.0fps.

    I personally have spent time shooting with EVERY camera mentioned in this Buyers Gude except the Nikon D300 which supposedly has just started shipping.

    This is a Buyers Guide based on my experiences using these cameras. It is not a review. My first SLR was a Pentax over 40 years ago and I have owned and used almost every 35mm system over the years, and even shot medium format exclusively for several years. I made a living as a Professional Photographer for two periods in my career.

    It is very easy to profess to know everything, but quite difficult to admit there are many things you don't know. I don't know everything about photography, but I suspect I have much more valid experience to write this Buyers Guide that most who would tackle this. I also have an open mind not severly blinded by conventional wisdom or marketing hype, which is why I have been writing for AnandTech for quite a while.
  • KorruptioN - Friday, November 23, 2007 - link

    The Sony A700 does 5fps continuous, not 6.5fps as quoted in the article.
  • Wesley Fink - Saturday, November 24, 2007 - link

    Corrected the typo. I personally have spent time shooting with EVERY camera mentioned in this Buyers Gude except the Nikon D300 which supposedly has just started shipping.

    This is a Buyers Guide based on my experiences using these cameras. It is not a review. My first SLR was a Pentax over 40 years ago and I have owned and used almost every system over the years, including medium format. I made a living as a Professional Photographer for two periods in my career.

    It is very easy to profess to know everything, but quite difficult to admit there are many things you don't know. I don't know everything about photography, but I suspect I have much more valid experience to write this Buyers Guide that most who would tackle this. I also have an open mind not severly blinded by conventional wisdom or marketing hype, which is why I have been writing for AnandTech for quite a while.
  • AssBall - Tuesday, November 27, 2007 - link

    I didn't realize you were 60 years old Wes.

    Photo people are always rabidly defensive of their own stuff. When the day is done, guess what... they all work pretty much the same for the rest of the world.
  • hoppa - Friday, November 23, 2007 - link

    Is the prosumer section a joke? The only thing you can come up with for Canon is that "it doesn't break new ground" and that 10 MP is too skimpy? Excuse me? It's common knowledge that more megapixels does not equal better, and it's even more known that the difference between 10 and 12 megapixels in minuscule if not even impossible to tell the difference between in anything but 20"+ prints. Furthermore, the noise levels on the Canon are *so far below anything else out there* that it easily out-resolves its 12mp brethren.

    Get a clue, guys. This write-up is pathetic.
  • Captmorgan09 - Friday, November 23, 2007 - link

    But come on guys, stick with what you're good at, reviewing mobos/CPUs/PSU and so on. I've never really been impressed with your camera reviews/buying guides. The most important thing about buying a camera is image quality. Fancy bells and whistles are nice, but if the picture looks like crap, who cares. If you read real reviews of these cameras at sites like dpreview, you'll see that there is a valid reason why Canon/Nikon cameras are the best sellers, image quality.
  • Hulk - Friday, November 23, 2007 - link

    Exactly.

    I've long been a fan of Anandtech but this article and others that try to talk about high-end cameras make me do the "oh jeez did they really write that?" face.

    As the above poster says it's about image quality in the D-SLR category. Optical image stabilization is simply better than mechanical. And there are many times when a straight prime with no stabilization is best.

    And please don't talk about auto focus speed of the body alone. The lens has a lot to do with auto focus.

    I could go on and on so please if you have to do camera articles just stay with rangefinders.
  • andrew007 - Friday, November 23, 2007 - link

    I got E410 in August just before my trip to Japan. The reviews were favourable and I wanted something light. After using it for a while, I am really happy with most aspects of it, and the price has fallen even further since. It is really a very light camera AND lens(es), making it easy to hang around your neck and take with you every day. Yet it's full featured and it makes nice pictures. I have no complaints on the lens whatsoever, and with a fast CF card it's pretty snappy. The only real complaint is dynamic range, as the various reviewers noted. It's easy to blow out highlights in high contrast situations - which is the most situations, unfortunately, when you're a tourist going outside on a sunny day. So one must keep fiddling with the exposure compensation. Other than that, I can't see any reason to not recommend this camera to someone who is going on a vacation and wants to make good pictures but is not interested in totting large bags and heavy lenses. Pictures these Olympus make were much better than what my friend's Canon Elph (the newest model) made, and for not that much more money.

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