Imagine, you take a picture of something and the “film” (an electronic one in the backplane of your camera nowadays) gets exposed for 1\/100 of a second. Some parts of the film remain dark, others become bright already.
\nNow, let’s double the exposure time to 2\/100.
\nDuring the first 1\/100, in a very dark spot, the film was exposed for say 5%, and was still unexposed for the remaining 95%. That remaining 95% will again be exposed for another 5% in the second 1\/100 and it’s quite safe to say that this will result in a 5% existing + 5% added = 10% exposed spot in the film. Hence, in the very dark areas the brightness of the image will be proportional to the exposure.
\nFor a \u2013 say 90% exposed \u2013 bright spot after the first 1\/100, things are different. In the second 1\/100 only the remaining 10% will be exposed 90% again, but that will add only 10% x 90% = 9% to the already present 90%, to make 99% after doubling the exposure time.<\/p>\n
So by increasing the exposure, the darks are \u2013 relatively \u2013 far more affected than the brights.<\/p>\n
Both programs have the ability to apply Exposure Correction<\/strong> in post. This is to be preferred over a similar action in Photoshop, because in the programs themselves the correction is applied against the internally stored 48-bit (16 red, 16 green, 16 blue) render result, when all details all still available, before exporting it. Especially exporting to a regular 8-bit color image format will lose detail in either the darks (shadows) or the brights (clouds). Exporting to HDR, EXR of 16-bit TIF might save the day. Note that Photoshop opens the Poser EXR images as 32-bit per color files.<\/p>\n ngg_shortcode_0_placeholderIn Poser, there is no alternative (except from buying Poser Pro).\u00a0Check the Render Settings:<\/p>\n My advice is to take a medium value between 2 and 3, because<\/p>\n Then, after export \u2013 in post, you can adjust the difference between your export and the final gamma\/exposure correction.<\/p>\n ngg_shortcode_1_placeholderIn Vue, you can adjust the Advanced Camera Settings (double-click the camera object). Vue offers Gamma Correction as an alternative.<\/p>\n There are different ways to express Exposure, which leads to different interpretations of values like 2, 4, 0.5, -3 and so on.<\/p>\n One way expresses Exposure as the lengthening (or shortening) of exposure time. The value 2 means: twice as long, two times as much light into the camera. The opposite of 2 is: one half (0.5). The neutral \u2013 do-nothing \u2013 value is: 1. This is the way exposure is used in Poser.<\/p>\n Another way to express Exposure is in extra diaphragm stops. One extra stop (value: 1) doubles the lens opening, and so the light into the camera. The opposite is: one stop back (or value: -1). The neutral value is: 0, no extra stops. This is the way exposure is used in Vue.<\/p>\n Hence:<\/p>\n\n
Exposure value<\/h2>\n