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feedback: havoc@harrisdev.com (Updated: Thur Aug 3, 2006) Things I've learned that help me take better photos. Many of these are applicable to any camera, but I've learned many of them from the great teacher that the Canon EOS 10D is. For more information on RAW digital photography and Linux, see my Linux and RAW Photography page Sample Canon EOS 10D photos at pbase.com Looking for the fastests CF card from your camera? Check out Rob Galbraith's CF Database INDEX
Get a grip! Canon's Engineers are smarter than you are Canon EOS 10D Menu Items The dreaded 'Err 99' message! [ UPDATED 15.Aug.2005 ] Why Canon? Canon EOS Lenses Linux
Organizing images Meta data (EXIF headers) EXIF headers and Perl (ExifTool) RAW images + alternate color profile + dcraw + ImageMagick feedback Leave the polarizing filter on! Because I shoot both indoor and outdoors, I've realized that I'll be much more likely to have the cp (circular polarizing) filter on the camera when I need it if I leave it on, and only take it off when I don't need it. I've blown more shots by not having the cp filter on, and either not having time or being too lazy to dig it out of the bag when I need it. It's a simple matter to screw off the cp filter when you're shooting indoors. Get a grip! I purchased a Canon BG-ED3 Battery Grip (used from KEH) with the camera (new from KEH), and a second battery. I'd wanted a vertical grip for my Canon A2e for a long time, but I'd never gotten around to justifying the $70.00 purchase to myself. Since I wear a wide-brim hat all of the time, taking portrait-mode shots has always been a pain because I have to either take off or knock off my hat to hold the camera in portrait mode. With the Battery Grip, I can shoot portrait-mode shots without having to take off my hat, and I consistently get them more "square to the world" than with the twisted-wrist method. Since the Canon pro-model vertical grips duplicate the AE-lock, AF-select buttons and program-shift wheel along with the shutter button on the grip, you still have 100% of the shooting-mode functionality of the on-camera grip. As a bonus, the grip for the Canon EOS 10D also holds two batteries, so you double your pleasure, double your fun (at the obvious cost of just about doubling the weight of your camera). I recommend a vertical grip for any SLR shooter who shoots a high percentage of portrait-mode shots. Canon's Engineers are smarter than you are. It took me several rolls of film to realize it when I first got my Canon A2e, but Canon's Engineers know photography. I had been using a Minolta 2xi (great, old consumer-level camera if you can find one), and found lots of tricks to get the camera to shoot the photo that I wanted it to shoot. Almost every shot I took, I tweaked something (and the 2xi was not very tweakable). After ruining several rolls of film in the Canon A2e, I started just taking the shot unless there was something that I knew the program wasn't going to compensate for. My pictures got better that day! In the 11 years since the A2e was released, Canon's Engineers have continued to advance their knowledge and pass that on to their customers. Canon EOS 10D Menu Items:
In the Menu, under "Review," there are three settings. By default, the camera will show you the photo you just shot in the LCD for 2 seconds after taking a photo. You can turn this off to save battery power, but I highly recommend setting it to the last option, which is "On (Info)." This will show you the image plus the histogram and the camera settings. This has already saved many shots by showing me that the exposure was all wrong in the histogram, and also by indicating that I had accidentally shifted the EV + or -, or forgotten to reset it to 0 after having used it in previous shots. I've found that MOST of the time, you have a chance to re-shoot the photo that you messed up. Change the Auto power off: Canon sets the Auto power off feature to 1 minute. Sometimes this is fine, but for lots of situations, the 3-4 second cycle that it takes for the Canon 10D to power up is frustrating. I've had mine set to 8 minutes for a while, and I'm quite happy with it. Yeah, it costs me battery life, but it also helps me get more of those fleeting images. Parameters: One thing I did was to change the parameters for image storage. Here is what I have Parameters Set 1 set to (which I leave the camera set to all of the time):
Sharpness: +2 Saturation: +1 Color tone: 0 (default) Don't be afraid of the "ISO Expansion": One of the first things I did when I pulled my Canon 10D out of the box was set the "ISO Expansion" to "On." This allows the ISO setting to be pushed up to ISO 3200. (By default, the system limits to ISO 1600.) I've taken a few shots in the almost-dark at the ISO setting of "H" (ISO 3200), and I've been very pleased. Yeah, they're grainy, but so is ISO 3200 film! I like it. I actually use it from time to time. I've got some pretty decent photos from the Nocturnal Exhibit at the Living Desert State Park (Zoo and Botanical Gardens) at ISO 3200 (equiv), and I'm quite happy with them. If you like to play with low-light photography, go for it! Review time: I found that the review was often blinking off before I could determine if I'd captured the image I really wanted. I changed it from the default of 2 seconds to 4 seconds and it was better. About a week ago, I changed it to 8 seconds, and I've been quite happy with it. Since I have the battery grip, my batteries still last forever, and I haven't had any problems with potential power problems yet. File numbering: The default on this is to leave it as continuous. I didn't think about changing it, but I've noticed that some people in the various forums have changed theirs to "Auto reset." I just like knowing how many photos, total, that I've shot with my camera. I never had the discipline to keep track of that with my A2e, and now I don't need it. Custom Functions
Nothing is more frustrating that grabbing a camera to shoot some impromptu photos of the kids then realize there's no film in it. I picked up the camera a couple times forgetting that I'd not moved the CF card back to the camera after dumping images. After missing taking three or for frames then realized there was no card in the camera, I changed this setting. 06 - Exposure level increments -- 1:1/3-stop The default is 1/2-stop increments, and I wanted a little more control. I've been quite happy with the 1/3-stop increments. 11 - Menu button display position -- 1:Previous Since I use the camera to format the cf card every time I dump the images to the computer, it's nice to not have to scroll around looking for "Format" in the menu every time. 13 - Select button function -- 2:Select HP (while pressing) I've found that It's sometimes difficult to get the correct focus register to lock. After shooting the A2e for so long, I got really spoiled by the eye-controlled focus. With this option, I can press the "Assist button" and the center AF point becomes the only active focus register. I can then get the focus I want even in very busy scenes without having to mess with scrolling through the AF point selection process. When I release the "Assist button," the AF system returns to it's regularly scheduled program. If I didn't mention a custom function, I left it at it's default setting. I have several other settings and some of the Custom Functions set, but they seem to be mostly either personal preference or experimental, so I won't file them as "suggestions." The dreaded 'Err 99' message!: [ Updated 15.Aug.2005]
The ERR 99 failure had returned, after the new batteries were ~4 months old. The failure rate then proceeded to skyrocket to a failure rate approaching 30%. As you can imagine, this was exceedingly frustrating. I even, in desperation, paid $70.00 for a new, Canon battery at Kurt's Camera in Albuquerque (I strongly suspect the clerk took the opportunity to bump the price -- I really should call and confirm their price on that $50.00 unit). It is becoming increasingly apparent that the ERR 99 problem on my unit was being caused by the mirror not raising high enough to engage the mirror-up sensor (?). My investigation lead me to the point of frustration that I was actually "exercising" the system by shooting (in small-normal jpeg mode) frames with the lens off so that I could watch the functioning of the mirror to confirm my suspicion. Interestingly enough, after ~100 mirror/shutter cycles, the ERR 99 failure started fall off in frequency. After ~200 cycles, it dropped below the limits of my test. I have not taken many photos in the last couple of days since this exercise, but I have not had another ERR 99 failure, since that time. Now, I am at a loss as to explain why at ~10,000 cycles, this issue would arise, then suddenly subside at ~12,300 cycles. It very well may have been a spec of dust, or even something caused by the extreme cold or extreme heat to which the unit has been exposed (as a result of leaving the camera in the car at times). I am not recommending the exercising of the mirror/shutter as a possible solution, but if you're not in the financial position to replace the unit, the camera is out of warranty, or you can't live without it for 6-12 weeks while it's off for evaluation/service, it might be worth a try to see if you can diagnose the problem yourself.
Why Canon?:
Interestingly enough, Canon demonstrated the first auto focus system for 35mm cameras at a trade show way back when, but didn't immediately add auto focus to their line. There were decisions to be made. "Do we keep the same lens mount, and allow people to keep using their existing F-mount lenses, or do we jettison the F-mount and start over?" Either way, it was going to cost Canon. The choice was made to start from scratch, and the Canon EOS system and EF-series lenses were born. Nikon chose to stick with the same lens mount, and Monolta has gone through at least three different lens systems. In the EOS system, the auto focus motor is integrated into the lens rather than in the camera body. There's a whole set of advantages (I'll find a link later if I can). One of the fruits of this choice is that Canon's lenses are renowned for their auto focus speed. It also means that the chance of damaging the lens or camera is greatly reduced when changing lenses. They also made it expandable into the future, so the EOS lens mount has not changed in the intervening years. The Canon EOS system is one of the best future-proofed engineering solutions I've ever seen. Nikon puts some nice features on their cameras, but, like I tell people, "A Nikon body will never grow up to accept a Canon lens." Nikon fans make a huge deal about how any Nikon lens fits any Nikon body. That's nice, but I have never seen a Nikon AF body with an old manual lens on it, and I've never seen an old Nikon manual camera with a new Nikon AF lens on it. So, the "all-fit-all" doctrine begs the question, "So what?"
That said, the Canon EOS EF Lenses are most impressive. Now, here's the really juicy part: Just because you only shoot a Canon EOS Rebel, or a Canon EOS Elan, doesn't mean you can't take advantage of the Canon EOS 'L' series lenses. Reasoning: I'm always astonished to see another amateur photographer proudly carrying a Nikon F5 with a total piece of junk, bottom-of-the-line Tamron or Sigma discount lens on it. (I've never seen an amateur photographer with a Canon 1v and a cheapo lens on it, but I suppose it happens.) The lenses I have: The lenses I want (don't have): Linux:
... I've been running Linux as my primary desktop OS since August, 2001. I'm very happy with it, so I was not interested in being slaved back to a Windows box to use my camera. Happily, since the release of BibblePro 4.0 from Bibble Labs, Linux can satisfy 100% of what I need for post processing of images. For the first year, I shot in Large, Fine JPEG only (no RAW images), and I simply copy the images from the compact flash card to the hard drive. Actually, it's a bit more complex than that, but not much. I have a Perl script which uses ImageMagick's identify command to ascertain the orientation of the image. I then used convert to make a copy of the image on my hard drive while adding "Copyright Jody Harris YYYY" into the EXIF comment field. If the image was shot in portrait mode, the script automatically rotates the image to the correct orientation with the -rotate flag. After the file is copied to my hard drive, the script again employees convert to create a 600x400 thumbnail of the image and drops it into a "thumbs" directory. I usually use only the ImageMagick libraries for getting images ready to put online. Before sending stuff out for printing, I use the Gimp to adjust levels and do any minor tweaking. On rare occasion, I will use the one Windows machine I have left in the house, and do some post processing work in Adobe Photoshop Elements (in the box with the camera). In June 2004, I started shooting RAW when I had the oportunity to be a beta tester for Bibble Labs. With BibblePro 4.0, I can convert my RAW images on my Linux box, and life is very good. I was shocked to discover how much more information the RAW format stores at 16-bits per channel than JPEG at only 8-bits per channel. There are several RAW converters, but dcraw and BibblePro are the only ones I have used. dcraw is command line only. BibblePro is a desktop application. I'm not likely to go back to shooting JPEG. I store the images in the same directory structure as Canon has set up with the 100canon, 101canon, 102canon, etc, with the addition of the "thumbs" directories within each of those. I have given up on CDs as a backup medium. The number of CDs required to backup my images (2-copies of each) was just killing me for time. If I get a DVD recorder, I may try again.... We'll see. As with negatives, I've decided to never mess with the original images. If I tweak an image for any reason -- be it a simple normalization or levels tweak, or full-fledged post processing with filters -- I will store those images in a directory called "processed." This is so that I will always be able to reproduce a specifically tweaked image in the future. The file names will be in the form 110-1023.jpg so that I don't start running in to potential name conflicts after I go past 10,000 images. RAW Images:
Organizing images: (Updated: Fri May 28 10:29:11 MDT 2004)
Meta data (EXIF headers):
Perl + Image::ExifTool
[Update: 20.Oct.2004] I noticed a couple weeks ago that Image::ExifTool is now available via CPAN, so life is good! Alternate 10D color profile
An example workflow could be dcraw -4 -c -w CRW_0123.CRW | pnmnorm -bpercent 0 -wpercent 0.1 -brightmax | pnmtotiff >temp.tif tifficc -i eos10d-linear.icc temp.tif CRW_0123.tif For more information on RAW digital photography and Linux, see my Linux and RAW Photography page Prints:
(update 30.Dec.2003) For prints I no longer mess with Wal-mart. I order them from ClubPhoto.com. ClubPhoto charges $0.25 ($0.17 on sale -- and they have lots of sales) for 4x6s, but they also will print as large as 30x40 for only $39.95. That's big. I always adjust the levels before I send images off for printing. Because of the excellent way the 10D processes images internally, this is usually a very simple process of level adjustment, sometimes a contrast tweak is helpful. I have started writing a tool in Perl to upload images to ClubPhoto.com since their software only supports Windows and Mac. It uses WWW::Mechanize. It works, it just needs polish. Let me know if you're interested in seeing my code, or helping me. [update: 04.Dec.2004] The Perl uploader for ClubPhoto.com is actually coming along swimmingly. I'm toying with the idea of giving it a GUI wrap with UI::Dialog::Backend::KDialog, but so far all I've added is the ability to select the upload directory with the GUI. I'm not sufficiently inspired to wrap the rest right now. Maybe I would work on the rest of the wrapper if I thought someone like my wife might use it. If you see anything that I've got wrong, or you have other tips or suggestions, please let me know. I'm not an expert, I just thought I'd share what I've learned. feedback: havoc@harrisdev.com |
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