Would like help finding best method converting to b/w

Started Apr 13, 2004 | Discussions thread
OP Texantransplant New Member • Posts: 21
Re: Would like help finding best method converting to b/w

Luke

Thanks for yopur reply I have emailed you.

Luke Kaven wrote:
One important issue in B&W rendering is especially important if you
are rendering to an 8-bit output device in the end, which is most
of the time. There can be only 256 shades of grey in 8 bits,
including black and white, so it is absolutely vital that you
assign those shades optimally. As a part of that, you would do all
of your level and balance adjustments using the RAW data in full
12-bit mode. Recall that you have (at least) 12 bits to work with
in each channel, of which at least 10 bits are probably above the
noise floor. Use those with curves, channel mixing, level
adjustments, or what-have-you to get the best range of tones you
can. Only at the end should you do the conversion to greyscale.
Once you have something in greyscale, you should pretty much leave
it alone.

Also, there are a lot of people who are into doing 12-bit B&W (4096
shades) and getting fantastic results on Epson printers. I'm just
learning this, so I can't give you the links that everyone knows.
But I'm looking forward to learning more about it.

I played with your posted photo a bit in Photoshop, and found some
good renderings by doing a level adjustment first to normalize the
range of tones. Then I used the channel mixer on monochrome
settings to dial in some RGB filter settings. I could email you
the result if you'd like, which is one way where there are myriad
variations you might favor yourself. [Write me at
telos123@hotmail.com and I'll mail the JPG.]

Luke

Texantransplant wrote:

I would like to hear how people convert thier images to b/w to get
the best results.
Here is my attempt. Feel free to take color image and apply your
own settings.

Thanks

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