Letters on screen are a bit blurry when increasing halogen.
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Greetings,
I recently installed f.lux to reduce my eyestrain during the day, which has been a major issue for me. I have an LED display monitor (LG). Increasing the halogen during the day seemed to relieve it at first. Currently it's 10 am (EST) and the daylight setting is currently set to 5600 and night setting is 4500. However, when I turn up the halogen the lettering on the screen appears a bit and I am concerned that will increase my eye strain for another reason! -
@mfpurcell59 If you figure out all the monitor buttons and can play with the "sharpness" setting then reduce it if it's high or put it on 2 or 3 if needed.
Also you'll want to use the highest resolution (you can scale the screen larger without changing resolution) the monitor will fit. This is called the "native resolution".
Many 22-27 inch monitors use 1920x1080 and smaller screens use 1600x900 or 1280x1024 if it's a 4:3 ratio screen.
To scale EVERYTHING on the screen larger without changing resolution, windows 7 has "make text and other items larger or smaller" in the resolution setup area.
150% of 1080p makes it 720p, 1280x720.
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This can be a sign that your eyes need a different correction, or that you just should stick with a more moderate setting in f.lux.
Here's the longer explanation:
Most people with visual correction (glasses, contacts) are corrected so that "green" is in the sharpest focus. (You've maybe seen the duochrome test where you say if red or green is in better focus.)
"Blue" focuses closer and so generally appears slightly blurry, unless you are overcorrected, and then the opposite will happen: blue will be in focus and green/red will be slightly soft.
To test: try moving your head a few inches away from the screen and see if it looks sharper.
For some people this effect happens naturally, because they get presbyopia as they age (around 40), so in this case bifocals or computer glasses may be needed. If you are in this category, you're probably also less sensitive to blue light at night, and so you can probably use a more moderate setting with f.lux and dim the screen instead.
