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Using Lightroom Profiles

Using Lightroom Profiles

In a previous article, I demonstrated how to install Lightroom Profiles. Before Adobe introduced Profiles, we used to rely on Presets to speed up our editing workflow. One of the main issues with presets is that they made adjustments tot he various sliders and prevented us from applying further adjustments to those sliders without overwriting …

Pinhole Exposure Charts 369x274

Free Pinhole Camera Exposure Charts

To calculate the exposure time for pinhole camera, we first of all need to know the f number of the pinhole camera. Unlike normal cameras, this value does not change because the hole remains the same size which therefore simplifies the final calculation. Pinhole f  Number. This is the distance from the film divided by the diameter of the pinhole. Let’s assume that our pinhole camera has a focal …