UV / IR question
- Thread starter Nisa
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Pablo
Senior Member
Nisa said:
Hi Nisa,
From what I believe, the manufacturers put a filter on the CMOS/CCD to cut down the influence of IR and UV on photo's.
The modification is the removal of this filter.
The camera now needs an external filter applied if you want to take standard colour photo's.
I am shure others will expand on this explanation :think:
Cheers
Once the filter is removed, it has to be replaced by a clear piece of glass of the same thickness as the filter that was removed, otherwise your camera's focusing goes wonky. From here there are two ways for you to go:Pablo said:
1. To create a pure IR camera, you'd have a IR (pass) filter fitted together with the new clear glass directly over the sensor. This allows you to compose and focus without the need for attaching and removing any IR filters. It allows you to use any lens without the hassle of looking for or buying any filters. The disadvantages are that you'll be stuck with just one type of IR filter, the one you select to be placed over your sensor and that the camera would be totally useless for normal photography.
2. To create a hybrid IR + Normal camera, you'd leave out the IR (pass) filter. Such a camera would require you to compose your shot before putting on the IR filters as you would rely on regular over-the-lens IR filters. The advantage with this type of camera is that you'd still be able to use it for normal photography if you get yourself an IR (cut) filter, also known as a hot mirror filter. The disadvantages are that you'd need to go through the hassle of attaching and removing the filter and the need for multiple filters for different sized lenses.
They both share a common advantage in that they are both highly sensitive to IR, so much so that even with a 900nm IRP filter in place, you'd still be taking photos as if in normal lighting conditions. This makes them perfect for IR portrait, candid, street, wedding and even wildlife photography.
Cheers,
Matt
Grevolorio
New Member
Nisa,
I have a Nikon Coolpix 990 that I converted. I removed the hot mirror and put a clear piece of glass instead. I didn't put an IR filter internally because I wanted to be able to try other filters like my old dark red filter to get other effects. Now I can use it handheld without a problem. What I notice is that with auto white balance it works similar to my D70 with an R72 filter with preset WB. I got a custom WB with the converted and it basically desaturates the image but gives a great looking image for weddings.
Cheers, Gus
I have a Nikon Coolpix 990 that I converted. I removed the hot mirror and put a clear piece of glass instead. I didn't put an IR filter internally because I wanted to be able to try other filters like my old dark red filter to get other effects. Now I can use it handheld without a problem. What I notice is that with auto white balance it works similar to my D70 with an R72 filter with preset WB. I got a custom WB with the converted and it basically desaturates the image but gives a great looking image for weddings.
Cheers, Gus
Nisa,Nisa said:
There're quite a few places/persons you could send your camera to in other countries that do this but I'm not sure if you'd be able to find a shop in SG that will do this mod for you. After all, we SGeans are famous complain + demand refund kings.
But if you'd like to try it out yourself, here's a couple of sites with instructions:
DIY IRC filter removal
JR-WorldWi.de - Digicam Modding
Take this step only if your camera's warranty is expired and if you're serious about going IR all the way. Personally, I'm thinking of getting a D70s and converting my current, warranty-expired D70 to a pure IR camera, but I'll have to wait to see what the mid-year bonus is like. :bsmilie:
Cheers,
Matt
Here's another one for modding of Olympus and Minolta cameras for IR conversion.
http://www.jr-worldwi.de/photo/index.html?modding.html
http://www.jr-worldwi.de/photo/index.html?modding.html
I think it was a US site, and they were actually selling modded D100, Canon Rabels, 10D and 20D as well. You could also send in your camera for modding.Nisa said:
Check out this site IR Enabled Cameras
Cheers
Nisa
Senior Member
vortex said:yea thats the website.
can lah..nisa...im sure u can afford it
if not...learn to mod yourself lor. or pay someone to mod for u :devil:
i can't afford. if i can, i would get a nicer lens liao.
I am already thinking about it..... mod myself? a bit.... but i don't mind someone doing it for me.... :think:
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