ISO

What is ISO?

ISO (International Organization for Standardizations) is what measures your camera’s sensitivity to light. More specifically, how sensitive the digital sensor is to light, (it also measures the film’s sensitivity, if using a traditional camera).

It is represented in numbers such as 50, 100, 200, 400, 800, 1600, 3200, etc. When you change the ISO on a digital camera, you’re rendering the sensor more or less sensitive to light. The lower the ISO number, the less sensitive the sensor is to light. High ISO numbers have high light sensitivity. So, when you change the ISO from 100 to 200, you are doubling the sensor’s sensitivity.

In well-lit environments, a lower ISO (200 or below) should be used. When shooting in low-light situations, a higher ISO (400 or above) is best. ISO 100 is considered standard. Higher numbers are best for darker situations. But keep in mind, higher ISO could cause grainy images

the three values in the exposure triangle:

Expressing ISO in AI-generated imagery through numerical manual setting prompts is not feasible due to inconsistent and unreliable results. However, you can approximate film grain through descriptors and post-processing. In upcoming tests, the descriptors will remain constant, except for the variable ISO, typically ranging from 0 to 6400. The template prompt for this purpose is as follows:

aijessy_ISO_30000_Dr._Strange_hurling_a_magic_spell_made

The progression of images below ideally illustrates the accurate reflection of ISO, where the images become progressively more grainy as the ISO number increases. However, it’s important to note that this effect was enhanced in Photoshop and does not represent a completely accurate depiction.

aijessy_ISO_200_Dr._Strange_hurling_a_magic_spell_made_of_circu

ISO 200, Dr. Strange hurling a magic spell made of circular holograms and glowing runic glyphs in a room of mirrors, 32k, caustics, tracers, multiple exposure, long exposure, style of Sargent, dramatic shadows and lighting, quantified photon capture, worm’s eye view, forced perspective, time lapse, –ar 32:9 –v 5.2

aijessy_ISO_800_Dr._Strange_hurling_a_magic_spell_made_of_circu

ISO 800, Dr. Strange hurling a magic spell made of circular holograms and glowing runic glyphs in a room of mirrors, 32k, caustics, tracers, multiple exposure, long exposure, style of Sargent, dramatic shadows and lighting, quantified photon capture, worm’s eye view, forced perspective, time lapse, –ar 32:9 –v 5.2

aijessy_ISO_1600_Dr._Strange_hurling_a_magic_spell_made_of_circu

ISO 1600, Dr. Strange hurling a magic spell made of circular holograms and glowing runic glyphs in a room of mirrors, 32k, caustics, tracers, multiple exposure, long exposure, style of Sargent, dramatic shadows and lighting, quantified photon capture, worm’s eye view, forced perspective, time lapse, –ar 32:9 –v 5.2

aijessy_ISO_3200_Dr._Strange_hurling_a_magic_spell_made_of_circu

ISO 3200, Dr. Strange hurling a magic spell made of circular holograms and glowing runic glyphs in a room of mirrors, 32k, caustics, tracers, multiple exposure, long exposure, style of Sargent, dramatic shadows and lighting, quantified photon capture, worm’s eye view, forced perspective, time lapse, –ar 32:9 –v 5.2

The actual results demonstrate that changing the descriptor from “ISO 2000” to “30000” on the original image, prompted as such, shows minimal difference in resolution. It’s highlighted that most consumer cameras do not shoot beyond 6400 without pixelation.

aijessy_ISO_2000_Dr._Strange_hurling_a_magic_spell_made_of_circu

ISO 2000, Dr. Strange hurling a magic spell made of circular holograms and glowing runic glyphs in a room of mirrors, 32k, caustics, tracers, multiple exposure, long exposure, style of Sargent, dramatic shadows and lighting, quantified photon capture, worm’s eye view, forced perspective, time lapse, –ar 32:9 –v 5.2

aijessy_ISO_30000_Dr._Strange_hurling_a_magic_spell_made_of_ciru

ISO 30000, Dr. Strange hurling a magic spell made of circular holograms and glowing runic glyphs in a room of mirrors, 32k, caustics, tracers, multiple exposure, long exposure, style of Sargent, dramatic shadows and lighting, quantified photon capture, worm’s eye view, forced perspective, time lapse, –ar 32:9 –v 5.2

aijessy_close-up_of_a_tattoed_vogue_asian_female_model_in_a_color

close-up of a tattoed vogue asian female model in a colorful circus, found footage, analog horror, style of sebastião salgado and shane hurlbut, saturated color, CHIAROSCURO –ar 2:1 –v 5.2

aijessy_a_tattooed_vogue_asian_model_in_a_colorful_circus_found

a tattooed vogue asian model in a colorful circus, found footage, analog horror, style of sebastião salgado and shane hurlbut, saturated color –ar 2:1 –v 5.2

A brief video demonstrates how ISO works in under a minute, showcasing the impact of ISO settings on an image. After understanding these differences, the focus will shift to exploring how ISO functions in conjunction with the other crucial settings: aperture and shutter speed.

ISO is not a standalone factor; it is one of several camera settings influencing an image. The camera sensor size is another critical consideration. Exploring the combination of these settings provides insights into the types of images that can be created.

aijessy__A_nighttime_scene_in_a_dense_forest_with_bioluminescen
aijessy__A_nighttime_scene_in_a_dense_forest_with_bioluminescen

● A nighttime scene in a dense forest, with bioluminescent fungi casting a magical glow on the surrounding vegetation. ISO 100, 70mm, F/1.4 aperture, shutter speed 1/125 sec –ar 2:1 –v 5.2

ISO + shutter speed + aperture

ISO, shutter speed, and aperture work in conjunction to determine the camera’s sensitivity to light. Raising ISO to address low lighting isn’t always the solution, as it may lead to overly grainy images. Achieving a near-perfect balance among ISO, shutter speed, and aperture is crucial for optimizing the camera’s capabilities. Before delving into an example, a video is recommended for a comprehensive understanding of how these three concepts work together to produce consistent high-quality images and footage.

Here are some other Web Prompt AI You can learn more

free–prompts.com

freepromptt.com