Lately, in my picture taking endeavors I have been trying to concentrate more on some of the technical aspects of photography. When I am shooting hand-held, for example, I am trying to keep the shutter speed high enough to avoid noticeable blur in the photos. There is a guideline that indicates your shutter speed should be at least faster than the reciprocal of your focal length. For example, if you are using a 50mm lens, then the shutter speed should be faster than 1/50, which would typically mean faster than 1/60 of a second when discussing whole stops. That guideline was probably developed from some trial and error. The fact is that longer focal length lenses, such as telephotos are typically heavier and tend to magnify camera motion more because they are trained on some distant subject.
As I take pictures these days using my month-old Canon EOS-5D Mark II, I'm trying to pay attention to those numbers in the viewfinder. If my shutter speed doesn't meet that guideline and I'm shooting hand-held, I first see if I can open the aperture any further. If I am already at my maximum aperture, then I will adjust the ISO speed of the camera. The 5D Mark II excels at taking pictures with high ISO settings and keeps the noise level to a minimum.
Sometimes, you don't want to increase the ISO speed because you want the cleanest picture you can get. At that time, you need to suspend hand-held shooting and grab a tripod and a remote shutter release. I currently have a Giottos carbon-fiber tripod which is reasonably light and is strong and stiff. To the tripod, I have mated an Arca-Swiss Monoball Z1 SP ballhead. This is arguably one of the best ballheads out there. Ballheads are very quick and easy to use. This tripod and head combination is great, but it is relatively big and bulky, although it is not that heavy. This Christmas, while spending time with my parents in Florida, I wanted to take pictures of the lights. I didn't have my tripod because it would have been too much to carry on the plane. My Dad's Slik aluminum tripod really wasn't up to the task of supporting the 5D Mark II with battery grip and 24-70mm f/2.8L zoom. I then decided that I needed a compact tripod along with a smaller ballhead to complement my other tripod/head combination. I think that I have settled on a Gitzo GT1541T Traveler carbon-fiber tripod along with a Really Right Stuff BH-40 ballhead. The Traveler is a 4-section tripod that collapses to 16" when the legs are folded back over the center column. The ballhead should easily support my typical camera/lens combinations.
Besides trying to think about using a tripod more, I'm looking at the other techniques for taking sharper photos. One of them is using a remote shutter release or some other remote trigger. I've got two remote options at my disposal. The first is Canon's timer remote control. This is a wired remote control that also be programmed to take photos are specific intervals, can take a pre-determined numbers of photos, and a couple of other functions. Of course the main purpose of the remote shutter release is to ensure that you aren't touching the camera at the time that the picture is taken. My other remote method involves a couple of PocketWizard radio triggers. One PocketWizard sits in the camera's hot shoe with a cable running to the camera's remote control socket. The other PocketWizard is in my hand. I just hit the Test button to take a picture. Another technique to get sharper photos is to use mirror lockup, ideally in combination with a delay timer on the camera. You hit the shutter release button on the remote the first time and the mirror swings out of the way. Then after a delay determined either by the camera or the photographer, the actual picture is taken, but by this time the vibrations caused by the mirror moving out of the way have diminished. The other method that I can think of to achieve sharp photos is to use Live View. Until I got the 5D Mark II, I didn't have this option. But by using Live View and manual focus and Live View's 5x and 10x magnification modes, I can fine-tune focus on my subject. A tripod and several of these techniques are going to be absolutely necessary when I acquire a tilt-shift lens (either the Canon TS-E 24mm f/3.5L II or the TS-E 17mm f/4L), I suspect.
I'm also trying to work on my photographic composition. So far, my photos have more of a photojournalistic style to them, and although the document something, they can be rather boring. I know one thing, photography is like many other things: there is always more to learn.
Ned
Showing posts with label 5D Mark II. Show all posts
Showing posts with label 5D Mark II. Show all posts
Saturday, January 2, 2010
Sunday, September 21, 2008
Canon EOS-5D Mark II Announced
This new digital SLR was announced a few days ago. I currently own a 5D and it is a great camera. I feel that I am taking higher quality pictures with it than ever before (even during the film years). Part of the better quality is due to the fact that over the past year, I have upgraded many of my Canon EF lenses to their "L"-series versions. Canon announced this camera, though, and there are a number of compelling reasons for me to consider the upgrade.
The new camera has a suggested price of $2699, and my favorite online dealer, B & H Photo and Video, is taking pre-orders at that price, too.
Here are some of the new features, and what they mean to me:
I went to B & H's website. I know that the camera won't be available for a couple of months. I tried to add my email address to a "Notify Me When Available" list. It wouldn't let me. The website said that interest in this camera is at an unprecendented level and the mailing list is full (I'm paraphrasing a little bit).
More on this subject in the future.
The new camera has a suggested price of $2699, and my favorite online dealer, B & H Photo and Video, is taking pre-orders at that price, too.
Here are some of the new features, and what they mean to me:
- 21 megapixel resolution: higher resolution is usually better (for a given sensor size, however, the individual pixel sites are smaller, and don't collect as much light. Therefore, they need to be amplified more, and that means more noise). You start out with more information. It can always be downsampled accordingly.
- dust reduction system: including a vibrating element over the CMOS sensor, plus the ability to manually clean the sensor. I've had my 5D less than a year, but I can already see the results of a couple of specks of dust in my pictures.
- ISO ranges from 100 to 6400, plus expansion down to 50 and up to 25,600. I've already seen some on-line samples shot at 12,800 and 25,600. I felt that the ISO 12,800 were quite usable. The reason why high ISO capability is desirable is that there are certain times when you may not be able to use flash. High ISO might mean the difference between getting the picture or not.
- 3.9 frames per second: this is a small improvement over the 5D in terms of continuous shooting. I don't do a lot of this type of shooting, so this is not too important to me.
- DIGIC IV processor: what this means is that the analog-to-digital conversion is performed at the 14-bit level instead of the 12-bit level of the 5D. 16,384 shades of grey versus 4,096. The results should be smoother tones.
- Lens Peripheral Illumination Correction: some of the wide angle lenses when wide open have a vignetting problem (light fall-off). This feature helps to counteract that.
- SRAW1 and SRAW2: I guess that these are different sizes of RAW file. The 5D Mark II also allows you to separately control the sizes of the JPEG and RAW files.
- AF Microadjustment: if a lens doesn't focus perfectly, you can tweak its focus. You can do that for up to 20 lenses. There is also a global camera AF microadjustment.
- Three-inch 920k pixel electronic viewfinder: this should be an adequate size and should be quite crisp. Supposedly there is also an ambient light sensor to control the backlighting level for improved viewing outdoors.
- 1080p Movie mode: There is the ability to record high-definition movies in 1080p using the H.264 codec. Suitable inputs and outputs (including HDMI, and microphone-in) are provided.
- Water Resistance: the weather sealing of this camera is supposedly improved over the 5D. That's a good thing.
- IR port: for using a infrared remote control to snap your own picture.
- Live View: probably one of the best new features. Normally on a SLR camera, you are using an optical viewfinder (which is quite decent on a camera such as this), but Live View allows you to compose the picture on the viewfinder and see live luminance histograms, fine tune focusing (using magnification), and compose a shot at a weird angle.
- Auto ISO: When engaged this feature attempts to choose an ISO speed that preserves the (1/focal length) rule. This is useful when using a telephoto lens.
- Flash Control in the camera: I own a Canon Speedlite 580EX II. Supposedly you can control the flash's functions in the camera.
- Face Detection: also a part of Live View. This is an autofocusing component.
- Histograms: an alternating luminance and RGB histogram can be displayed. No more having to go into a menu and choose one.
- Copyright metadata: The camera can encode this data into the JPEG saving you from having to do it later.
- Shutter Cycle rating of 150,000: I believe that the 5D is rated at 100,000. Therefore the 5D Mark II has a more durable shutter.
- AF-On button: normally autofocusing is initiated by half-pressing the shutter release. This button allows you to autofocus separately.
- Buffer: Supposedly with a UDMA CompactFlash card, up to 310 JPEGs can be continuously shot with the camera.
I went to B & H's website. I know that the camera won't be available for a couple of months. I tried to add my email address to a "Notify Me When Available" list. It wouldn't let me. The website said that interest in this camera is at an unprecendented level and the mailing list is full (I'm paraphrasing a little bit).
More on this subject in the future.
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