View single post by Eric
 Posted: Sun Dec 29th, 2013 15:59
Eric



Joined: Wed Apr 18th, 2012
Location: United Kingdom
Posts: 4186
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jk wrote:
Apparently according to LifePixel website.

Nikon D40, D60, D90, D300, D300s, D3000, D5000, D7000 are not great for IR as they have problems with setting a decent WB Preset when used in IR.

The D3 series, D4 and D700 models make use of Nikon's new infrared self-diagnostic shutter monitor circuitry. This function involves an internal infrared LED emitter/detector chip that could fog images. In most cases it will not be an issue unless you shoot in overcast weather using higher ISO and/or longer exposures.

The D90, D300, D300s, D3000, D5000, D7000, D600, D610, D800 and D800E these models are random, some will white balance all filters but some not at all but most just won't white balance with our Super Color & Enhanced filters. Will need to shoot in RAW and use Nikon Capture NX2 software to set the white balance.


So that leaves as good cameras for conversion the D1, D1X, D70, D70S, D80, D100, D200 and D2x.



Then of course there is the Fuji Xpro1, XE1, X100 that shoot IR (unconverted) but with a R72 filter on the lens very nicely but you need a tripod to use this as exposures are typically 2-4secs with ISO 400 at f5.6-f8.  It is easy to pre-visualise the IR result with the TFT screen.




I don't do a preset for the WB anymore ....even with the D200.

I shoot raw and adjust the yellow-blue to c. -80. ( i think ...without checking) This was the setting I always got from my precalibrated D70 whenever I opened its raws.

So I wouldn't discount these models.

I don't however like the idea of the IR fogging with the newer models you mention. One of the complications with IR is getting the right exposure in shaded or overcast situations. The meter increases the exposure based on the visible light without regard to the IR additional exposure...result over exposure.



____________________
Eric