Kolari Vision is a US company specializing in camera full-spectrum and infrared camera conversion services and producing filters and adapters. They have developed an OLPF (low-pass) filter for the Panasonic Lumix S series cameras. Let’s take a look at this exciting modification! As you may well know, moiré is that ugly color effect produced especially in clothes and fabrics. To make it simple, if the sensor resolution can’t read the repetition of lines or patterns, we will have moiré in our picture. To avoid that, manufacturers put an OLPF in front of the sensor. This filter blurs those details while (hopefully) preserving the image resolution, at least to our eyes. In reality, some blur always occurs. For many of us, especially filmmakers, this is not a problem, and we are happy to pay the price if the reward is getting rid of digital artifacts on our image. But imagine you are a technical photographer documenting paintings, for example. In that case, you would need the sharpness. Moire patterns are especially visible in clothes or fabrics. – Image credit: Dan Hopkins It is always about compromize For the past years, we have seen a trend in the camera industry to remove the low-pass filter from the cameras. The truth is that sensors now have a better resolution and deal better with artifacts, and we also have more postproduction tools to fix our images. But most of the time filmmakers are still shooting in 4K, and moiré is an uninvited guest. Brands...
Published By: CineD - Thursday, 21 December, 2023