So what’s all the fuss about? Understanding some of the practical differences between these two types of plates…er…cameras will help you know which type is best for you.įor example, pretend it’s raining and you want to collect some of the water that’s falling freely in your front yard. So what’s all the fuss about? Understanding some of the practical differences between these two types of plates…er…cameras will help you know which type is best for you. Both will get the job done, and both are great for different types of people. Shooting with a full-frame camera is like taking a normal size plate to the serving area, whereas using a crop sensor camera is like using a plate that is about 30% smaller. Think of it like going to an all-you-can-eat buffet with different sized plates. Using a smaller sensor has interesting effects on things like depth of field and apparent focal length of lenses, but it’s not a subjective measure of how good or bad a camera is. How the smaller sensor affects your images The most common size that the term crop-sensor refers to is known as APS-C, which is the same size as a piece of film from the mid-1990’s Advantix format (also called the Advanced Photo System or APS) invented by Kodak. A full-frame sensor is the same size as a piece of 35mm film which was, and still is, the most widely-used type of film in analog cameras. The term crop-sensor or full-frame refers solely to the size of the imaging sensor inside a camera. Even mobile phones, which are basically super-duper-ultra-crop sensor cameras, can take breathtaking award-winning shots that grace not only social media feeds but billboards, walls, and pages of magazines across the world. Moreover, all types of cameras are capable of taking great photos. All of them are different, and each format has its strengths and weaknesses (yes, even full-frame cameras have weaknesses!) and each is ideally suited to different types of photography. Different, not betterīefore I get too deep into this article I want to make one thing clear neither crop, nor full-frame, nor medium format, nor micro-four-thirds are any better than the others. Cloudy Nights.This duck is rushing to get the latest full-frame camera he read about on the internet. “4-crop” rule instead of rule of 500 for pin point The simplest rule (except for the 500 rule) that is less precise then the NPF rule, but much more precise The 4 Crop Rule Calculation Shutter Speed = (4 - Sensor Crop Factor) * 100 / Focal Length Longer amount of time than what is permitted by this rule, the photographs you take will not have sharp Photograph before star trails appear or before the stars become blurry. The 500/300/200 rule is a measurement used to determine the maximum exposure time that can be used in a Retrieved August 12, 2022, from The 500/300/200 Rule Calculation Shutter Speed = 500 / (Sensor Crop Factor * Focal Length) Retrieved August 12, 2022, from Simplified NPF Rule Calculator Shutter Speed = (35 * Lens Aperture + 30 * Pixel Size) / Focal LengthĪ Simplified version of the original NPF rule that does not take into account the pixel density of the La Règle NPF – Société Astronomique du Havre. This rule replaces the old “rule of 500” which gives Of a starry sky without the stars trailing too much. The NFP rule is a rule that makes it (fairly) easy to calculate the maximum exposure time to take a photo Nightscape Photography with Digital Cameras.Īugust 12, 2022, from NPF Rule Calculator Shutter Speed = Accuracy * (16.856 * Lens Aperture + 0.0997 * Focal Length + 13.713 * Pixel Size) / (Focal Length * cos(Declination)) Shutter Speed = ((206265 * Pixel Size in mm / Focal Length) / 15) / cos(Declination)Ĭlark, R. ** For stars not on the celestial equator, the exposure time will be divided by the cosine of theĭeclination to get the same drift amount in pixels: This calculation will result in stars having exactly 1 pixel smear. So compute the angular size of a pixel to determine the star drift rate. Stars on the celestial equator move 15 arc-seconds The more technical equations for keeping stars round. 0s Plate Scale Calculation Shutter Speed = (206265 * Pixel Size in mm / Focal Length) / 15
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |