Olympus-OM
[Top] [All Lists]

Re: [OM] mimicing r/o/y filters digitally post exposure for C41 b/w

Subject: Re: [OM] mimicing r/o/y filters digitally post exposure for C41 b/w
From: Roger Wesson <roger@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 18 Aug 2003 11:21:48 +0100
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.




< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >


<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz