In a message dated 8/31/04 1:38:53 PM, DigitalBlackandWhiteThePrint@yahoogroups.com writes: > > This is the procedure I use for conversion to BW: > > 1. Open it and convert it to Adobe RGB 1998 and at that point > create a duplicate image to show on the screen at the same time. > Move them around so you can see both images at the same time. Do all > of your final work on the copy image and rename it according to your > whim at the time. Convert the copy now to grayscale. > > 2. Using the original image, on the palette bar at the top right > select channels which will show 4 channels---Red Green Blue and the > composite RGB. If you left-click on the right panel of each color an > eye will appear on the left of the panel for that color and will > show how the image would look if only that color was used. This will > show up on the actual image as BW on the original image. > > 3. You may find that only one channel will give you the effect that > you desire or you may have to combine two channels or even all three > in different opacities and fills. > > 4. On the original image as you choose a channel to use, place the > pointer on the original image and Shift-A which will give a dotted > line around the entire image. Then Shift-C which will copy that > image channel into the clipboard. Left click on the copy image and > Shift-V, which will transfer the channel from the clipboard to the > copy image. Do this with the other channels as needed. > > 5. When the channels you want have been copied, close the original > image without saving any changes to it. That image is still a virgin > image in case you goof up on this and other attempts to work it up > in BW. > > 6. Now all work is done on the copy image and it is the one that > will be saved with a different name than the original. Left-click on > the layers tab on the palette bar and you will have layers for each > channel you copied plus one called background. At this point I > usually rename them with the name of the channel I copied (Red or > Green or Blue). In the case of the Rust In Peace truck, I used the > Green and Blue channels. I copy channels from the top down so my > Layer 1 is renamed Green and Layer 2 is renamed Blue. To rename them > Double-Left-click on the words Layer 1 for the first layer and type > in the name of the channel copied from the original image. In my > case it was Green and the other one was Blue. Now you have three > layers ---Green Blue Background. Eyes should be on the left side of > all the channels. > > 7. Now comes the magic!!!!! You notice the channels are stacked on > top of each other Blue over Green over Background. and up on the > upper portion of the channel window you have two sections > called "Opacity" and Fill" in percentages starting with 100%. Left- > click and hold on the layer that is the lightest (Green) and slide > it up to the same level as the darkest (Blue) and release. You now > have layers names of Green Blue and Background. I do this so the > lightest layer is on top so the darker portions can start showing > through as I lower the opacity of the top layer a little at a time. > > 8. It suited my aye at 61% for the Green opacity. You can do the > same for the Blue layer, but if you do; left click on the eye on the > Green layer so you can see the effect of Blue on Background; then > click on Green eye again to see the combined effect on all three > layers. Experiment till it suits your eye and desired effect. > > 9. Then click on Layer>Flatten image and now you have used channels > mixed to your liking. > > 10. Now set up your Proof. View>Proof Setup>whatever your choice for > proofing is that gets equality between the monitor and printed > image. A good way to determine your proof is to take an image you > have already worked up and make a straight print from it without any > further manipulation and compare it to the monitor. If the print is > darker or lighter than the monitor image the same process applies > for correction and proof profiling. With dried image in hand and > well lit compare it carefully to the monitor image. > > 11. This is the process to determine the correct proof setup for you > final printing of any image you work up. This will change if you > change inks or paper. > > 12. View>Proof Setup>Single left click on whatever is showing in the > Profile selection. This will bring up a menu of all proof profiles > on your computer that Photoshop uses. Start at the top and carefully > compare each one with the printed image making sure the > box "Preserve Color Numbers is Checked" if it is available. > Sometimes it won't be. When you select one from the list the list > goes away but the selection is highlighted in the profile selection. > Simply arrow-down on the keyboard till one of the examples does > match the finished and dried print you made for this image. Take > your time and preferably do this in a darkened room so ambient light > won't sway your decision. That way when you print in a lighted room > you won't be swayed by the brighter light and think something is > wrong. Save your choice with any name you can easily associate with > the paper choice and inks used so you can simply use it for all > images you print on that paper and with that inkset. > > 13. Print and enjoy the fruits of your labor, or discard and start > all over again. That's part of the learning process. It isn't cut > and dry--it's creative---it's fun---it's disheartening--it's > whatever it is--but it's photography at it's most challenging and > rewarding when it all comes together with the photographer. > > Or you could just shoot Tri-X. Isn't this an awful lot of work to make one's way back to what film has been doing for generations? I don't mean to reignite the old film/digital debate; there's no sense in arguing which is better; they each have their strengths; they are different tools. But it does seem perverse that people embrace a new technology to mimic the appearance of an old one. Sanders McNew [Non-text portions of this message have been removed]
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Re: Basics of Converting from Digital to B&W for quality results
2004-08-31 by sandersm@aol.com
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