As many of you know I work at a university and recently I’ve had a preview of a brand new image processing system that threatens to get rid of blurry images forever. Developed by Professor Alfred Raguboboli, Ph.D. from the College of Engineering; newly patented software will be made available as a plug-in for Adobe Photoshop Extended.

Combining the flexibility of RAW image processing software and 3D rendering technology used for Hollywood special effects, new software can compute the ideal focus for an image. The software starts by examining the EXIF data stored along with a digital photograph and determines the lens, focal length, and distance to where the camera locked focus. Using the RAW image data of the out of focus picture the computer calculates the ideal focused image and exposure and then renders it. This software is so powerful that it can even compensate for motion blur and camera shake.




Professor Raguboboli has been a pioneer in developing computer rendering systems that generate photorealistic simulations of the real world. His software has been used by the motion picture industry to create stunning visual effects for such films as Jurassic Park and King Kong. The idea to extend this technology for use by digital photographers came to him after his son’s fifth birthday party. Professor Raguboboli had taken some pictures of the event with his new Canon EOS 20D, and to his disappointment, many of the images came out blurry. The shutter speeds were just too long for the low light indoor shots. He soon realized that Adobe Photoshop simply lacked the tools necessary for him to recover the images to his satisfaction. That’s when the idea struck him. The rendering software, that he had dedicated much of his time to, used a virtual camera for composition and lens effects to render scenes realistically. The idea was if you could use a virtual camera to render an image, why not the reverse? By using the RAW image data, the computer can calculate the camera’s position and focal point. The computer then determines what new focal point would render the image with the best contrast, and renders the new image based on the original camera RAW data.

All of the information necessary to recreate the correctly focused image is right there in the RAW file. There is only one exact situation that could have created the blurry image. The software simply computes the correct scene that would have created the out of focus image and then renders the correct one.

The software is so revolutionary that pretty much everyone wants to license it. There have been requests from Adobe, Microsoft, Sun Microsystems, IBM, and a lot more. NASA and the FBI would also like to use the software. “If we had thought of this earlier, expensive repairs to the mirror on the Hubble Space Telescope might not have been necessary” exclaims Professor Raguboboli.

Despite all the offers for an exclusive license to this software, Professor Raguboboli is actually a firm believer in the open source community and will release a public beta test for the whole world to try it out for themselves on April 1st, 2008. You can download the software here.

Labels: 20D, Photography, Photoshop, Workflow

At the PMA (Photo Marketing Association Annual Show), going on now at the Las Vegas Convention Center, Canon recently announced the new Digital Rebel XSi. You can get the full specifications and press release over at dpreview.com.

I know that there are many of you that have purchased previous versions of the Canon Digital Rebel series, and continue to purchase updated models in the Rebel series as features are added. The Rebel series has some excellent cameras in the lineup, often coming very close in feature sets found in Canon’s prosumer line of cameras, the xxD series (i.e. 20D, 30D, 40D).

So if you’ve been sticking to Canon’s Digital Rebel line of digital cameras, upgrading year after year, Canon has a message for you in the new XSi. Stop, and upgrade to the xxD series. Two feature changes in the XSi signal this message to me. The first is that Canon has once again, changed the battery type; and second they have changed the media type from compact flash (CF) to secure digital (SD). This will be a frustrating upgrade for current Digital Rebel users, since it would involve buying new spare batteries, a new battery grip, and new memory cards. All of that adds up quickly. Compare this to the more stable xxD line where the battery grip has changed little through three models (20D, 30D, and 40D) and the batteries and compact flash cards have remained the same since at least the 10D. So current Digital Rebel users this is probably not the camera upgrade for you.

Many people have always thought of the Digital Rebel line as the lite version of the xxD line. But the XSi’s new features put it more along the lines of a step up for those who have point and shoot digital cameras that want to upgrade to a digital SLR. Now the XSi will accept the same memory cards that your point and shoot digital camera uses. This was a smart move that will probably continue to drive more point and shoot users over to a digital SLR.

The disappointment regarding the XSi was that current Digital Rebel owners really wanted a lower priced 40D in the form of the XSi. The XSi did inherit some features from the 40D, but none that would really threaten 40D sales. Instead, it’s clear that Canon has targeted the Digital Rebel series as a step up from a digital point and shoot.

Here are my thoughts on some of the XSi’s features:

12.2 Megapixel CMOS sensor - Canon is playing the megapixel catch-up race here. They have not increased the sensor size, just added more pixels. The result is going to be more noise in the image.

3.5 frames per second - Good enough if you’re upgrading form a point and shoot, but misses the mark if you’ve been using a digital SLR for a while now. Canon has all of that 20D and 30D technology sitting around that they should be able to recycle at a lower cost. This camera should have had at least 4.5 to 5 frames per second.

9-point wide-area AF system with f/2.8 cross-type centre point - This is the AF system that was on the 20D, 5D, and 30D, It is not the one from the 40D.

DIGIC III image processor - The DIGIC III, has been found in nearly every camera model Canon has made over the past year, including point-and-shoots. The Digital Rebel seems to be the last model to get this feature. The Xti should have had it years ago. You do get 14-bit which is good for recovering shadows and HDR. The other stuff like highlight-tone-priority are really JPEG only features that can be replicated with any good RAW processing software.

Fully compatible with all Canon EF and EF-S lenses and EX-series Speedlites - Oddly, Nikon can't claim the same thing about their system. The low end D40 isn't compatible with all Nikon lenses.

There are two features that Canon should have added to the Rebel that would have made it a real competitor to the other entry level DSLRs. The first should have been a high resolution LCD. The larger LCDs that Canon uses have the same pixel counts as the old smaller LCDs. The larger LCDs only make the images look fuzzier and doesn't help you see if you've taken a blurred shot or not. The second should have been an HDMI port so that you can view your images on a High-Definition TV.

Where to purchase:

Canon Rebel XSi 12MP Digital SLR Camera
Canon EOS 40D 10.1MP Digital SLR Camera

Labels: 20D, 300D, 40D, Cameras, HDR, Rebel, XSi

I just finished archiving all the photos I have taken since I’ve owned a digital SLR camera. It filled an entire 500 GB hard disk for all the files from November 2003 to December 2007. Three separate digital SLRs were used to create those files, the Canon EOS Digital Rebel (300D), Canon EOS 20D, and the Canon EOS 40D. What a long way we’ve come in just a short amount of time.

I have all of my images stored on two Western Digital 500 GB My Book drives. Each drive contains the identical information as the other, and I will be moving one drive to an off-site location. I think that’s a pretty good backup strategy. Before archiving the files were stored in two locations as well. Older files are stored on a 250 GB Buffalo LinkStation, and newer files are stored on an internal 250 GB hard disk. The files stored on both of these drives are backed up to an external Western Digital 500 GB My Book drive. This helps keep the files safe from a single point of failure and also provides extra security from accidental deletions or overwrites when I am editing them. The downside to all of this is all the extra storage I need to keep the duplicate copies of each file. Still, I’m looking forward to filling up the next 500 GB, which I’m sure I’ll reach sooner than 4 years.

My dad just purchased the Dot Line DL-DRF14/C Macro Ringlight Flash for Canon E-TTL II. It has a guide number of 46 feet / 14 meters at 50mm, which is similar to the Sigma EM-140 DG Macro Ringlight that I use. In practice the unit is less powerful than the Sigma, has no manual controls, no high-speed sync, and no master/slave capabilities. However at 1/3rd the cost it’s not a bad alternative and for most macro shots you wouldn’t miss those features. The flash has a ring diameter of 52mm, and it comes with step down rings for lenses up to 67mm. You could probably get a step down ring for larger lenses, say 72mm and 77mm, but you’ll start to notice some viginetting. The build quality is also not as good as the Sigma, but did I mention it was less than 1/3rd the cost? He’s been using it very effectively with his Tamron 90mm Macro lens.

The next few days I’ll be at the 11th Annual Space Coast Birding and Wildlife Festival in Titusville, Florida. If you’re attending I hope to see you there…

Labels: 20D, 300D, 40D, Archive, Backup, Birds, Macro

August! So many things happen in August for me. My daughter’s birthday is in August. My wedding anniversary is in August. School starts in August. Of course Canon makes new camera announcements in August. So, will there be a new Canon 40D that will be announced in August? Only time will tell, but there is enormous speculation on the forums, especially dpreview.com. I’m hoping that a 40D will be announced because I really need a new camera. I’ve outgrown the 20D, and I can’t afford any of the professional bodies in the 1D series. My 20D is back at Canon service again, because it was recently infested with ants. That’s right, ants. I use the camera at least every weekend if not more often, so it wasn’t sitting in some dark corner of the house. Anyway, theories for the infestation range from having taken too many macro shots of insects to taking way too many “sweet shots”. In reality, very small ants like sugar ants and moisture ants are attracted to electronics. They will colonize computers and other electronic devices, especially in very hot and humid places. I’ve read some accounts on line about ants being a problem in the tropics. I’m not sure exactly how the ants got into the camera itself, but when I took out my camera from my camera bag to get shots of a Snail Kite; literally thousands of ants started crawling out of it. Most of them were hiding out in the pop-up flash, but they were all over the place. The battery grip and the LCD all had ants crawling around them. I shook and blew off as many of them as possible. The camera still worked and took some great images that day, but there were dead ants still stuck inside the camera. To prevent any damage from the decomposition of the dead ants or their eggs, it’s off to Canon for a cleaning.

Around the end of July and the beginning of August the farms around Loxahatchee National Wildlife Refuge begin planting for the fall. This is a great time to visit them as the wading birds and the Snail Kites are attracted to the area as the soil is prepared for planting. This past weekend we were able to observe Wood Storks, Egrets, Herons, Spoonbills, and Snail Kites at very close proximities just outside the gates of Loxahatchee. Inside the refuge itself there was little bird activity, but there was plenty of insect activity with butterflies and bees going about their business. Enjoy the August gallery.

Labels: 20D, 40D, ants, Birds, Cameras, Loxahatchee, Snail Kite