randym77:

these monitor calibration instruments are colorimiters and are basically all the same. A pricier one might be a tiny bit more accurate, but 99% of the added value is in the drivers and software. A less expensive solution will be OK, just check that it has support for your OS and that you won't miss extra features, faster operation, simpler interface etc. Ideally it should generate ICC v4 profiles, but v2 will be perfectly OK. If you want super-accuracy you need a spectrophotometer, like this.

 

markschum:

whether your approach is better than nothing is debatable; if you're using a CRT or a really old LCD, this approach is worth pursuing.

If you have a recent LCD monitor, it isn't. Don't faff about with any of the controls except to adjust brightness to whatever's comfortable.

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