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New XTi owner with questions
This is my first digital camera. I held onto film like others before me
held on to vinyl music. Now that I'm here I have a few questions: Do filters that work with SLRs also work with DSLRs? Do I need a UV filter as well as a circular polarizer? These were my primary filters with film. Is this self-cleansing mechanism of the sensor actually a useful tool or marketing hype? Thanks for any answers and any other advice with this camera. |
#2
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New XTi owner with questions
In article .com,
wrote: This is my first digital camera. I held onto film like others before me held on to vinyl music. Now that I'm here I have a few questions: Do filters that work with SLRs also work with DSLRs? Yes. You're only changing the medium used to record the image [digital memory v. film emulsion], not how you take the image in the first place. Do I need a UV filter as well as a circular polarizer? These were my primary filters with film. IMO, no. Others will argue. I go with the polarizer 99% of the time, unless I need the extra light, but most of those shots are done with a tripod, so I can usually afford the light loss. I threw away my UV filter years ago, long before digital, as I found the polarizer to be much more effective in all circumstances than the UV filter ever dreamed of being. Is this self-cleansing mechanism of the sensor actually a useful tool or marketing hype? From my experience and some tests reported here, it's more marketing hype. The final verdict is still out, but it seems to only dislodge a small portion of any actual dust. If dust becomes a problem, learn to clean your own sensor (be aware that this could void your warranty if discovered). Here's a reference to help you learn to do so: http://www.cleaningdigitalcameras.com/ Thanks for any answers and any other advice with this camera. |
#3
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New XTi owner with questions
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#4
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New XTi owner with questions
"Ken Lucke" wrote in message
... From my experience and some tests reported here, it's more marketing hype. The final verdict is still out, but it seems to only dislodge a small portion of any actual dust. If dust becomes a problem, learn to clean your own sensor (be aware that this could void your warranty if discovered.... My D70s has a "mirror lockup" mode specifically designed for sensor cleaning, so I doubt it would void the warranty unless you started damaging the sensor by using inappropiate cleaning gear. cheers adrian www.boliston.co.uk |
#5
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New XTi owner with questions
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#6
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New XTi owner with questions
"Bill Funk" wrote in message
... I use a UV filter on my 3 lenses. Not because trey filter out any UV light (most DSLRs have a UV filter over ther sensor already) but because they offer protection. (My favorite story about this is when the filter got bashed by a turkey leg at the Renn Festival; the filter wasn't damaged, but cleaning it was a mess.) Many photographers don't go places or shoot things that can damage their lenses; for them, UV filters are a bad thing. For many of us, though, UV filters do perform a protective role. UV filters do provide an extra glass piece that can reduce contrast and add glare or reflections to the image. I prefer the protection that a decent hood offers. I started off using the skylight filter but now prefer a hood. I particularly like the metal screw in hood on my nikkor 85/1.4 lens as this hood cannot be knocked off like a plastic bayonet hood, although i can't clip on the lens cap while the hood is on. cheers adrian www.boliston.co.uk |
#7
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New XTi owner with questions
In article , Adrian Boliston
wrote: "Ken Lucke" wrote in message ... From my experience and some tests reported here, it's more marketing hype. The final verdict is still out, but it seems to only dislodge a small portion of any actual dust. If dust becomes a problem, learn to clean your own sensor (be aware that this could void your warranty if discovered.... My D70s has a "mirror lockup" mode specifically designed for sensor cleaning, so I doubt it would void the warranty unless you started damaging the sensor by using inappropiate cleaning gear. Some manufacturers _will_ void your warranty if you clean the sensor at all using any physical contact, or do it without using their "approved" products and procedures. A quote from http://www.cleaningdigitalcameras.com/methods.html: ============================ Only Kodak, Leica and Fuji support the consumer in using the same method that they themselves use for cleaning the low pass filter. All the others manufacturers only support the non-physical contact use of a hand blower. If Canon, Nikon, Olympus, Pentax or Sigma, can tell that you have touched the low pass filter, your warranty is void. On the other hand, Photographic Solutions Inc., guarantees that you won't damage your camera, if you use their SensorSwabs and Eclipse. * Canon - Blower and a Kimwipe, held by tweezers. They do not like to use fluid but when necessary they use either 90% isopropyl alcohol or a 50/50 mixture of isopropyl alcohol and Windex. * Fuji - Photographic Solutions SensorSwabs and Eclipse * Kodak - Photographic Solutions SensorSwabs and Eclipse * Leica - Photographic Solutions SensorSwabs and Eclipse * Nikon - A commercial grade lens tissue wrapped around a chopstick style piece of wood with medical grade methanol. Several forums have posts where readers have been to Nikon Service outside the USA and reported seeing the technicians using SensorsSwabs and Eclipse. * Olympus - A Kimwipe held by tweezers and Olympus Proprietary Solution (dries quickly without streaks and is bio-degradeable). * Pentax - A special lint free cloth (provided from Japan) folded into a small square and held with a pair of tweezers as a swab moistened with a freon derivative. * Sigma - Uses a special vacuum cleaner that was provided by Japan. ============================ In support of that data, they say: ============================ (Q) Where did you get the information used to developed this site? (A) Over 150 sources were researched and it still isn't complete. * Visited over 100 web sites * Visited 14 different online sensor cleaning tutorials * Visited over 20 Forums * Talked with all 7 DSLR Manufacturer's repair departments * Talked to many professional Camera Repairmen who clean multiple brands of cameras on a daily basis * Last but not least, our first hand knowledge on the subject ============================ |
#8
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New XTi owner with questions
Ken Lucke wrote:
Some manufacturers _will_ void your warranty if you clean the sensor at all using any physical contact ... A quote from http://www.cleaningdigitalcameras.com/methods.html: ============================ ... If Canon, Nikon, Olympus, Pentax or Sigma, can tell that you have touched the low pass filter, your warranty is void. This is simply not true ... if you DAMAGE the sensor you are on your own but it's nonsense to claim your warranty is void "if you clean the sensor at all using any physical contact". I'm certain of this because I recently received a Canon camera with dust on the sensor and after using the Sensor Brush and then Eclipse with Pec Pads there was still one blob that would not come clean. It seemed obvious to me that it was under the filter. I returned the camera with a photo of a screen dump showing the problem and explaining that I had tried cleaning it with the brush and with Pec Pads (which is full-body "physical contact") and asked them to either fix it and return it or send me a new camera. Far from voiding my warranty, they sent me a new camera as a replacement. Bill |
#9
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New XTi owner with questions
On Wed, 22 Nov 2006 21:06:46 -0000, "Adrian Boliston"
wrote: "Bill Funk" wrote in message .. . I use a UV filter on my 3 lenses. Not because trey filter out any UV light (most DSLRs have a UV filter over ther sensor already) but because they offer protection. (My favorite story about this is when the filter got bashed by a turkey leg at the Renn Festival; the filter wasn't damaged, but cleaning it was a mess.) Many photographers don't go places or shoot things that can damage their lenses; for them, UV filters are a bad thing. For many of us, though, UV filters do perform a protective role. UV filters do provide an extra glass piece that can reduce contrast and add glare or reflections to the image. I prefer the protection that a decent hood offers. I started off using the skylight filter but now prefer a hood. I particularly like the metal screw in hood on my nikkor 85/1.4 lens as this hood cannot be knocked off like a plastic bayonet hood, although i can't clip on the lens cap while the hood is on. cheers adrian www.boliston.co.uk I would too, except that it makes for a much larger bag. :-( -- Bill Funk replace "g" with "a" |
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