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| November 28th, 2006 01:15 PM | |  LVE
Joined: Aug 1, 2006
Posts: 827 | NEUTRAL DENSITY FILTERS
This is an excellent link to go to find out information on ND Filters. Copy and paste in your Browser!
http://www.cs.mtu.edu/~shene/DigiCam/User-Guide/filter/filter-ND.html
| | | [1] | | | November 28th, 2006 02:24 PM | | RhodyGirl
Joined: Sep 18, 2006
Posts: 214 | ND Filter Info
Thanks, Larry! Judy | | December 9th, 2006 12:51 PM | | LVE
Joined: Aug 1, 2006
Posts: 827 | Hmmmmmmmmmmmmm!
Results is what counts. Your analogy is partially correct, but a lot depends on the direction of the light. I have very good resluts using them, and therefore am bullish. | | May 11th, 2007 04:42 PM | | LVE
Joined: Aug 1, 2006
Posts: 827 | You got it! You are welcome!
| | May 11th, 2007 06:52 PM | | ssomajik
Joined: Sep 18, 2006
Posts: 163 | Hmmmmmmmmmmm
Me too | | May 12th, 2007 09:10 PM | | andreyG
Joined: Sep 19, 2006
Posts: 391 | Re: NEUTRAL DENSITY FILTERS
Could you tell me what is the other part - I love ND, buying them from ebay for ~7 a piece. The same results but of more wierd quality - you can get from deep red filters and from so called infrared (x-ray) filters. Using longer exposures - is a very interesting tool. | | May 15th, 2007 08:57 AM | | andreyG
Joined: Sep 19, 2006
Posts: 391 | infrared
there are 2 infrared type filters, one of them is so called x-raty wision (sony's proposal) , another bunch of infrared filters, filtering out everything, but a particular lenth of vawe from infrared spectrum, I did try some of them, but prefare deep red filters, that give you a possibility to recover some colors, in clear IR pictures - it is more or less B&W, it is an interesting possibility to make IR camera, I did not do it, but saw the pictures and I like it, anothe feature of the camera, that you can make pictures without a tripod. I am thinking to vandalize my fuji 4900, taking off the filter on the sensore, in this case - placing IR filter in front - will make it IR camera.The base of the technick - is that all the sensors can see both wisible and IR (750nm to 1200nm) light. The filter in front of the sensor - mainly has a purpose to cut off IR light, and when you place IR filter - you have 2 filters working together. - one filtering off the visible light, and another filtering off IR. In this situation you have exposures around 1 min or greater, have to have a lunch and steady tripod, and tons of patience. Deep red gives you similar results (visually) but more convenient. | | | [1] | |
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