View Full Version : Processing my scans

11-10-2008, 03:58 PM
I thought I would post this to show you what I do to prepare negatives for posting on f295.
Scanned on an Epson 4990photo set to professional mode.
Scanned in 24 bit colour at 600 dpi with the output size set at 250 percent and saved as a TIFF file. The files are typically around 30mb.
The first image is an uncorrected scan from a 120 6x6 b&w negative. I don’t do much in the “Epson scan” software because it seems better to do it in PS.
The second has been through PS. I selected “auto levels” which looked good and then increased the contrast in “curves”. Then convert it to b&w and add a slight warm tone; tint 42 at a level of 8.
I then enlarge the view to “actual pixels” and went around it with the “healing tool” to remove any spots and marks.
Then I save as a jpeg and then reduce the size by about 25 percent to make it small enough to enable me to “save for web” which reduces the file size massively by reducing all the unnecessary data.
I normally save these at a width of 600 pixels or if it is a portrait image 400 high.
Am I doing a reasonable job?
Please tell us how you do it.
Attached files http://f295.f295.org/uploads/img196_62.jpg (http://f295.f295.org/uploads/img196_62.jpg) http://f295.f295.org/uploads/img196a_8670.jpg (http://f295.f295.org/uploads/img196a_8670.jpg)

11-10-2008, 06:45 PM
Beautiful image, David. You've managed to capture the full tonal range in the scan, and your PS work brings out the best. Square format, curved subject matter. Well done, and thanks for the tutorial.


11-11-2008, 06:45 PM
I'm always looking for a better way to post process. I'll have to give this a try and see how it works. I just dialed in my T-max 400 for speed and development times so now might be a good chance to try it out.

You certainly are getting a nice tonal range.....

11-11-2008, 07:27 PM
Tonal range is an interesting topic.
I feel that normal development of normal film often does not give a wide enough range for pinhole.
I often find that images have black shadows and burnt highlights with a really good bit in the middle so I must be getting the exposure / development about right, a wider range is definitely needed.
If you look at this cropped image showing a mid tone area the uncorrected bit looks flat but it does have good detail over most of the tones. I think my digital processing has done a reasonable job of maintaining that while giving the image some punch.
I have not had time to print this neg yet but I think it will give a nice looking result.
This image was taken on a bright day late in the afternoon with the sun low in the sky but still giving some direct light; hence the dark shadow on one side of the big stalk (seen in the original images).
Film was Adox CHS 100 developed in Rodinal at 1+25.
I have tried some at 1+50 but I was not overly impressed, more work is required.
I find images from dull over cast are the hardest to scan even if the exposure has given a reasoable looking negative.
I am going to run some more extreme tests when I get a chance to see if I can find an easy to use combination of film and development that gives a wider tone in a wider range of conditions. Watch this space……
Oh yes; do any of you use Cafenol? I would like to exchange notes. Attached files http://f295.f295.org/uploads/img196crop_1594.jpg (http://f295.f295.org/uploads/img196crop_1594.jpg)

11-15-2008, 06:40 AM
It is interesting to hear how you do things David. I follow a similar process but tend to scan my paper negatives with no magnification at 300dpi which keeps them quite small. I too run over them quickly full size to remove any bad blemishes (my scanner is full of dust which I don't think I can get to). I use the clone stamp for this spotting. Following this I resize to 500 pixels using Save for Web. If I like the result and want to print it I then rescan at the output size I need - e.g longest side between 7 and 10 inches. This often means respotting but I prefer to do it this way so that my first drafts are small and easy to work on.