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Medical Forum / General / Dentistry / September 2005Digital Intraoral Camers
Lots of salespeople will tout all kinds of information about intraora cameras, telling you theirs is best because of one reason or another Here are some things that you may or may not have considered whe looking around. This isn’t a recommendation of any one camera or an one brand, just a few things to look for, and look out for. - Sound Byte: Our camera is digital - Sound Byte: Our camera has “auto focus†- Sound Byte: Our camera uses LED’s - Sound Byte: Our camera is wireless Digital cameras are great if you want to incorporate them into you computer. Analog cameras will work well too. As far as compute interface goes, the difference (to the computer anyhow) is how th signal is fed. Some digital cameras have direct digital USB or firewir interfaces. Some have S-Video or composite interfaces, even though the use a digital CCD (eye) to capture the image. In the US, S-Video composite signal is fed into the computer in 512X512 NTSC format. computer capture card will grab the NTSC analog signal and convert i into digital format. NTSC is great for TV’s but when one takes th same signal and tries to show it in 1024X768 computer resolution, th image is, well, degraded. In this respect, direct digital interface like USB win out. Auto focus is nice, sometimes. Some low end cameras only come with pinhole lens and have no way to really focus. Some people will refer t these as auto focus type cameras… Other cameras still come with manual focus. The manual focus units are usually the most expensive o the market and have the best optics. LED cameras are really nice. They’re light, maneuverable an they’re easy to use compared to the old fiber optic units. On th other hand, if one or more of the LED’s blows out, you’ll have t get the camera repaired. Swapping out a light bulb on a fiber opti camera isn’t expensive. Repairing a failed LED can be. LED’s als come in different intensities and hues. In other words, not all LED’ are the same and different light sources produce different qualit images. I’ve seen wireless come in two flavors, Wireless and Cordless Wireless cameras have come a long way in quality and resolution Cordless is still in its early stages. Hope this helps someone, :) -Bil -- billkat Thanks Bill, It seems a high end digital SLR camera with firewire or USB2 may meet the needs of the regualr dental office and the hobbiest photographer at the same time. Have you had any experience with the PhotoMed line of Canons, Fuji and Nikon digital cameras. And are not these cameras supplanting the need for a separate intraoral camera? Flap http://flapsblog.com I use NikonD70 to take intraoral pics... there is learning curve to it...but pics came out pretty good so far... I agree with USC95 about the ability to use an extraoral camera (with mirror), in many cases. I also like the fact that most extraora cameras simply plug into a modern computer and behave like a small har drive allowing for image storage. This, IMO, is leaps and bounds ahea of the current intraoral technology. Many intraoral cameras also won' do well when taking an image from a couple of inches away. Their foca range is calculated in millimeters. That being said, there's also the fact that an extraoral camera i sometimes just too bulky. In other words, sometimes you'll need to hav the lens a few millimeters away to get the best image. You can look at the medical devices like the Nikon or Kodak or you ca also retrofit a good quality digital camera with a ring flash. Rin flash units are available for many brands of digital cameras. You ca find the cheaper ones on eBay for as little as $80.00. Of course different quality ring flash units provide different results, albeit you might be able to retrofit a perfectly good extraoral camera fo very little money. : -- billkat Bill, I have seen good digital cameras used in place of intraoral cameras and they work quite well. Those offices have PCs and LCD screens in the treatment room and provide quick quality images ofr dentist and patient. And you cannot beat the economy of price because those smaller intraoral cameras are expensive for what you get. Which is the best camera so that you can disaasemble the dental flash part, add another lens or so and take it home for the weekend photo shoot? Flap http://flapsblog.com Hi Flap :) AFAIK, the Nikon D70 is a heck of a nice SLR camera. At 6.1 megapixe (3008X2000), it'll provide a nice image. Sigma makes a ring flash fo this unit too -- billkat USC95 Wrote: > I use NikonD70 to take intraoral pics... there is learning curve to > it...but pics came out pretty good so far... REPLY I am sure .. .why not post a few of the goodies ....? Either post at DentalCom.net as attachment or if in the body, use im tags. Come to think of it, if you post from outside sources, simpl include the img tags too ..... [ i m g ] http://mywebserverphotosource.com/myphoto.jpg [ / i m g ] without the spaces of course. I included spaces to avoid the softwar from rendering the nonsense reference I just wrote. Joel -- Joel34 I have a 6.3 mp Canon rebel (digital reflex). I got a macrolens and flash that swithches from ring to point flash at a flick of a button from Dyne. Works wonders. Had 3 excellent digital cams before that but shutter lag made taking good picture a headache. JPB > USC95 Wrote: >> I use NikonD70 to take intraoral pics... there is learning curve to [quoted text clipped - 14 lines] > > Joely >From whom did you purchase the camera? Do you use USB2? or Firwire as your connection? Flap http://flapsblog.com |
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