What I've done is use the channel splitting option in PSP to do this -
takes a colour image and gives you three monochrome images from the R, G
and B values of the original. It works very well - blue skies come out
nice and dark on the red channel.
And amazingly, I've just looked out my window and yes indeed, the skies
over London are blue and contain a fair scattering of puffy white
clouds! Probably be raining by the afternoon though.
Haven't used portra, but have used XP2 quite often and find that it
scans just fine. The following images are scans I made with my ScanWit
2720, trying out b/w and colour modes. The low res images are the full
frame resized to 700px wide, the full res images are 700px-wide sections
of the full image scanned at 2700dpi.
http://www.worldtraveller.f9.co.uk/photo/scanstuff/xp2lowres_bwmode.jpg
http://www.worldtraveller.f9.co.uk/photo/scanstuff/xp2fullres_bwmode.jpg
http://www.worldtraveller.f9.co.uk/photo/scanstuff/xp2lowres_colourmode.jpg
http://www.worldtraveller.f9.co.uk/photo/scanstuff/xp2fullres_colourmode.jpg
Roger
Siddiq wrote:
i've been wanting to try red filter with b/w chromo film, to get nice
dark skies (hah! in so cali? not likely, but london, yes) contrasting
the clouds, etc. now, i'm thinking i could just save myself a stop or
two of light loss by shooting it straight, and then once the film is
scanned, desaturate, and then play with the red level slider to get the
same affect. have i gone nutter or would this actually work? that way, i
have an original exposure scan, and i can see what it would look like
with red or yellow or orange filters on screen, keep it if it looks
good, or just go back to the original, and not have to worry about
loosing light at exposure time. you londoners, if you're reading this,
please tell me that you chaps have nice blue skies and puffy white
clouds! for the sake of simplicity and my like for nicely done b/w, it
looks like i'll pack only kodak portra 400bw (i've decided on that vs
xp2 super since i hear the former scans better).. if anyone has OM pics
taken with 400bw, would love to see! thanks.
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