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<blockquote data-quote="BackdoorArts" data-source="post: 331948" data-attributes="member: 9240">There is always a filter stack on all DSLR's and it contains an IR filtration element.&nbsp; The D7100's (and other Nikons w/o the OLPF) stack differs from the D800e stack in the way that it deals with the low pass filter removal, but the results are the same, and there's still a stack of filters over the sensor which includes the IR filter.&nbsp;&nbsp; When you send your camera off to Lifepixel or KolariVision they disassemble the stack and insert a visible light filter in place of the IR filter (or clear glass for full spectrum), then reassemble.&nbsp; When I got my D7000 back it still had the OLPF filter on it - it's just the second piece of the stack that was replaced.&nbsp; Both companies are now also offering the option of removing the OLPF as well (at $400-550 depending on the camera), which would involve replacing the top and bottom pieces of the stack, likely with an arrangement as above.&nbsp; Lots of questions on how badly those conversions suffer from moire, which is one of the things keeping me from sending my D600 off.</blockquote>

[QUOTE="BackdoorArts, post: 331948, member: 9240"] There is [I]always[/I] a filter stack on all DSLR's and it contains an IR filtration element. The D7100's (and other Nikons w/o the OLPF) stack differs from the D800e stack in the way that it deals with the low pass filter removal, but the results are the same, and there's still a stack of filters over the sensor which includes the IR filter. When you send your camera off to Lifepixel or KolariVision they [U]disassemble the stack[/U] and insert a visible light filter [I]in place of the IR filter[/I] (or clear glass for full spectrum), then reassemble. When I got my D7000 back it still had the OLPF filter on it - it's just the second piece of the stack that was replaced. Both companies are now also offering the option of removing the OLPF as well (at $400-550 depending on the camera), which would involve replacing the top and bottom pieces of the stack, likely with an arrangement as above. Lots of questions on how badly those conversions suffer from moire, which is one of the things keeping me from sending my D600 off. [/QUOTE]

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