Tag Archives: frame

Canon EOS 5D Mark II Announced

This evening I’m seeing quite a few links to the announcement of the updated EOS Canon EOS 5D Mark II. (Here is a link to a Canon press release.) Unlike some previous Canon updates that seemed rather trivial – e.g. 20D to 30D – this one includes quite a few compelling new and improved features, and I’m sure this will be a very popular camera.

Some highlights include:

  1. 21MP full-frame sensor
  2. HD video capture
  3. The expected sensor dust reduction/cleaning features
  4. Live view shooting
  5. Some interesting software additions – a “new creative mode,” “peripheral illumination correction” in jpg modes (sounds like compensation for vignetting), and “auto lighting optimizer” (seems to try to deal with recording details in high dynamic range scenes)
  6. Continuous shooting at 3.9 fps
  7. Larger and higher resolution LCD
  8. 150,000 shutter cycles
  9. Expanded ISO range
  10. Price: $2699

For many of us who are attracted to the 5D image quality, the 21MP sensor is a good thing – this camera should compete with the 1DsMKIII on an image quality basis as long as one has good enough lenses and uses careful technique. (I doubt if there will be much IQ advantage if one hand holds the camera in most cases.) It is interesting to note that the increased shutter life is competitive with 1-series cameras as well.

Video capture is quickly going to be a standard feature on DSLRs – though the usefulness of the feature is something that will perhaps only become apparent once these cameras find their way into the hands of those who know how to use the feature effectively and creatively.

The relatively leisurely 3.9 fps burst mode is no surprise. The 5D is not a camera optimized for fast action sports photography that relies on high speed burst mode shooting. But still, at nearly 4 fps it won’t exactly be unusable in this regard either.

The pricing is interesting as well. Whether due to the recent announcement of a $3000 25MP full frame Sony camera and the anticipated competition from a 20+MP Nikon camera or something else, it seems that the prices of full frame cameras – and very capable ones, at that! – are starting to drop.

Will I buy one? I had pretty much decided that I would not buy a 5D upgrade that only provided a 16MP sensor. However, at 21MP this body provides close to double the number of photosites – and such a doubling has been more or less my trigger for an upgrade. Of course, I’m not one to rush to be the first to buy. I’ll let those who are willing to pay any price to be “first on the block” get theirs right away, and I like to see what initial problems are discovered as the first units are released. All of that being said, I think there is a fair chance that I’ll do this upgrade within the next 6 months or so.

Also: Canon announced one new lens, an upgraded EF 24mm f/1.4L II USM. The previous version was thought by some to be less impressive than its 35mm f/1.4 big brother, so it isn’t too surprising that Canon updated this lens. There is also some thought the Canon will update some lenses in order to take better advantage of the higher MP count sensors – they can exceed the resolving ability of some good lenses. It will be interesting to see whether the new 24mm L is a significant improvement over the previous version… and whether it is worth the somewhat shocking (for a prime!) $1699 list price.

G Dan Mitchell Photography
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Canon EOS 5D

Having used my Canon EOS 5D extensively for about two years, I figure it is about time for me to write up something about my experiences with and impressions of this camera. Rather than try to compete with the existing camera review sites and post a bunch of technical specifications and test results, I’m going to focus on aspects of the camera that may give a better general idea of its strengths and weaknesses and of situations for which it is best adapted. Continue reading Canon EOS 5D

Windows, Rhyolite School

Windows, Rhyolite School

Windows, Rhyolite School. Rhyolite, Nevada. April 2, 2008. © Copyright G Dan Mitchell – all rights reserved.

Windows of the abandoned school in the ghost town of Rhyolite, Nevada look out over the Amargosa Desert. Students in the school who gazed out the western windows of the building were looking across a high sagebrush-filled valley at the range running along the eastern boundary of what is now Death Valley National Park.

keywords: ghost town, rhyolite, nevada, school, abandoned, ruins, mines, mining, historic, scenic, building, travel, death valley, national park, walls, windows, frame, stock

Corner Sharpness of the Canon 17-40mm f/4 L Lens on Full Frame

Since the question of how the Canon EF 17-40 f/4 L performs across the frame for landscape photography comes up periodically, I have posted an older test photo I made last year (2007) – updated here to include a comparison corner and center sharpness.

Canon5D17_40f16CornerVsCenter.jpg

Technical data: Canon 5D. Canon EF 17-40mm f/4 L lens. Focal length: 17mm. Aperture: f/16. Shutter speed: 1/60 second. Shot on the tripod with MLU and remote release. If the full image were reproduced at this resolution the print would be about five feet wide. (Not that I’d do that – it is a really boring photograph! :-) In a more typical size print the corners would like very good, indeed.

A 100% crop would not be expected to be “razor sharp” – and we see typical results here. It is impressive to see how well the corner image quality holds up – despite the fact that grass is one of the most challenging subjects for a digital sensor and the fact that this part of the scene was much closer to the camera than the focus point in the center of the scene – i.e. the corner section showing the grass is only a few feet from the camera, and the camera is focused hundreds of feet away on the objects in the center of the frame. (On that subject, I’m convinced that a good number of the reports of “poor corner performance” in ultra wide lenses are actually due to the subjects in the corner being much closer to the camera position than the subjects in the center of the frame, especially when the “tests” are done by shooting actual landscape subjects.)

BOTTOM LINE: What does this tell us, how do we view this in the context of reports of soft corners on the EF 17-40mm f/4 lens, and what does this mean for anyone trying to choose a wide (or ultra-wide in the case of full-frame cameras) Canon zoom lens?

While this lens is soft in the corners when shot wide open, the lens is not particularly soft in the corners when stopped down. If your primary use for such a lens is, for example, shooting very low light handheld wide angle photographs the 17-40 is perhaps not your best choice. (The EF 16-35mm f/2.8 on full frame or the EFS 17-55mm f/2.8 IS on a cropped sensor body could be more appropriate zooms.) On the other hand, if you are primarily interested in subjects that are usually shot at smaller apertures (urban/wild landscapes, architecture, etc.) then the 17-40 can be an outstanding lens – though this is more true on a full frame body than on a crop body, given that you are unlikely to use the smaller apertures on a crop sensor body given the diffraction blur issues there. So, to state it very succinctly…

… the Canon EF 17-40mm f/4 lens is an excellent lens for shooting deep DOF small-aperture photography on a full-frame camera. (It is OK but not necessarily ideal for use with cropped sensor bodies, where I would prefer the EFS 17-55mm f/2.8 IS.)

G Dan Mitchell is a California photographer whose subjects include the Pacific coast, redwood forests, central California oak/grasslands, the Sierra Nevada, California deserts, urban landscapes, night photography, and more.
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Text, photographs, and other media are © Copyright G Dan Mitchell (or others when indicated) and are not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.