Photographic film is not light sensitive to red light ...
2nd Answer:
Actually, that is not true. When you are working with photographic film, any light at ALL will 'fog' the film and ruin your photos.
Photo paper is nowhere near as sensitive to red light as film is, so you can use a red "safe" light so you can see what you're doing as you print, develop, stop, and fix your photo prints. The room lights may be on as you rinse the print.
Using a red light in a dark room is a common practice in photography because it has a long wavelength, which means it is less likely to affect light-sensitive materials like photographic film or paper. Red light allows photographers to see and work in a darkroom without risking prematurely exposing or ruining their photosensitive materials.
"As i went outside to take out the trash, everything was dark."
Dark
Well, friend, both blue and red can be dark colors depending on their shades. Blue can be dark like the night sky, and red can be deep like a rich wine. It's all about how you mix and use them in your painting to create the right balance and depth. Just trust your instincts and enjoy the process of exploring these beautiful colors on your canvas.
The contrast between light and dark
dark blue or red
You would use dark red
Yellow, blue and red.
Dark rooms are usually made for older cameras in order to develop previous taken films. It is easier to use Digital Cameras mainly because of it's versatility & ease.
dark colours such as black dark green dark blue dark red white
orange, brown, lighter red if u have.
add more black or dark red
you can save at camps and rooms but autosave is turned off
Photographers use this red light called a safelight because the paper onto which the photograph gets exposed is not sensitive to the frequencies emitted by the 'red' light bulb. This is for black and white photography. Keep in mind, that although the bulb seems red, it has other filters, as opposed to a christmas red light, or a red LED. These filters, usually block frequencies under (estimate) 590-650nm (nanometer). So anything above those frequencies the paper doesn't see, but we can, up until it becomes invisible light to us (350-700 nm is more or less what we see).
Just make sure that you do not use cheap filters. Always use filters as good as OEM filters at least. Don't use FRAM.
Blue and red filters are used in optical microscopy to improve contrast and visibility of specific structures by selectively blocking or allowing certain wavelengths of light to pass through. Blue filters can enhance contrast for certain dyes or fluorescent proteins that emit light in the blue range, while red filters can help visualize structures that absorb light in the red spectrum, such as hematoxylin-stained nuclei. By using these filters, researchers can optimize the visualization of their samples based on the specific properties of the structures they are studying.
Use blue mix it a tiny bit with red.