|
Steve. There are various opinions about the best way to mod a dslr. I have removed both factory fitted filters on my 1000D and use an Astronomik UV/IR clip-in filter for astro. This is the simplest modification. Auto focus works in this configuration, without going to the trouble of fitting a built-in astro filter or clear glass in place of the IR Cut filter, often recommended to retain AF capability. I guess it may vary between cameras. Personally, after several mods, for sharper images, I recommend not reinstalling the front glass/anti-alias/low pass filter, however named.
These mods often involve replacement of the IR Cut filter with an astro filter - best done in hermetic conditions. A filter is required if you are using refractors/regular camera lenses because some wavelengths do not focus well in the IR range. A clip-in serves the purpose. But this is not a problem with reflective optics and both filters can be removed for a full spectrum mod.
Someone else can point you to a conversion service. No idea, I do them myself.
|