![]() ![]() Out of focus NIR: With the Enhanced Spectrum modification, depending on the lens, telescope or optical corrector used, some imagers might experience a little bit bloated stars due to the near infrared light slightly out of focus when a refractive optical system does not have at least one ED (Extra-Low Dispersion glass) element. ![]() The camera can be used for daylight photography setting the custom white balance with a gray card shot under the specific light source for "In-Camera" white balance correction or with Adobe Camera Raw white balance presets without the need of additional original white balance filters. Perfect focus to infinity with lenses capability including autofocus with Pentaprism/Pentamirror mode is guaranteed for all Nikon DSLR Full Frame models. With the permanent installation of this filter, this conversion does not require an additional or external UV/IR Cut filter. On this conversion the UV/IR blocking bluish filter and the LPF (On models with Low Pass Filter) are removed and replaced by the non-detachable AstroGear UV/IR Cut Anti-Reflective filter with enhanced H-alpha and Sulfur II sensitivity. Enhanced Spectrum Conversion with AstroGear Luminance Filter With the LPF preserved, the camera will become Enhanced Spectrum (For a complete description of a ES conversion please read option 2).ΔΆ. Please indicate if you would like to preserve the LPF when you are placing your order. The main purpose of the LPF is eliminate moire effect but at the cost of sacrificing sharpness slightly introducing a little blur effect and it also reduces color noise. Some Nikon camera models have the Low Pass Anti-Aliasing filter with self-cleaning function. ![]() There is a layer of glass protecting the micro-lenses and bayer filters on top of the pixels. When the stock UV/IR blocking filter is removed, the surface of the sensor is not really naked. Without any glass above the sensor there are no internal reflections coming from a replacement filter. Telescopes will always reach focus to infinity without problem. When combined with a Clip-in filter like the Astronomik L-2 UV/IR blocking or the Clip-in MC Clear glass, the total price of this conversion is less than the internal filters modifications. However, the sensor distance to the lens bayonet will be adjusted to reach focus to infinity with lenses when a Clip-in body filter like the Astronomik L-2 UV/IR blocking or CLS is attached to the camera body (For the D780 and D850, lenses can be used with manual focus only). Perfect focus of subjects closer than infinity with lenses can still be achieved in Live View Mode, but the camera will not reach focus to infinity. Having the sensor bare or "naked" the camera will become Full Spectrum (For a complete description of a FS conversion please read option 3). This is the most unexpensive conversion, most recommended to save money. 1. UV/IR blocking bluish filter removal only (Full Spectrum) ![]()
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