| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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My understanding is Nikon have stopped dipping the glass filter in front of the lens in acid which created a micro etch to diffuse the light rays in an attempt to reduce the ugly moire effect when fine parallel lines appear in photographs.
I think this has in part been enabled by higher resolution in some of the high end bodies which reduces the tendency for the moire effect to occur, and possibly built in software to correct it although that is a guess on my part.
A pass band filter to remove light below about 400nm (ultra violet) and above about 680nm (infra red) is pretty well essential for a clear image.
I have often wondered what would happen if I used an ultra violet <400nm and an infra red filter >680nm in combination on my full spectrum D200, given that it has no low pass filter just a piece of extremely thin quartz glass in front of the sensor.
The downside would of course be a lot of messing with filters and potential ghost images due to the two filters being in front of the lens in tricky lighting, instead of just in front of the sensor. It would be so much easier if Nikon had provided the facility for the user to easily change the sensor filter.
[OK, I know it's splitting the wrong hair but I rather liked the typo, so being in a obtuse mood I left it!]
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Robert.