Focus tools
Focus tools
How does the black level and noise reduction affect the focusing score with the fwhm I get a score of about 392 maybe 400 that's about as good as I can get any advice would be appreciated
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Re: Focus tools
Hi,
With the focus score tools, the exact value doesn't matter – the key is to get the lowest value that you can (for FWHM) or the highest value that you can (for the contrast-based tools). The black level and noise reduction adjustments allow you to make sure that pixels and background noise are excluded from the measurements – if you don't do that then they can mask the signal that you are looking for.
Cheers, Robin
With the focus score tools, the exact value doesn't matter – the key is to get the lowest value that you can (for FWHM) or the highest value that you can (for the contrast-based tools). The black level and noise reduction adjustments allow you to make sure that pixels and background noise are excluded from the measurements – if you don't do that then they can mask the signal that you are looking for.
Cheers, Robin