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RattyMouse

RattyMouse

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Oct 18, 2011
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I am worried about a recent batch of film that I just got back from the lab for scanning. I developed this film at home, all Neopan Acros in HC-110. I look at these scans and they just seem "off" in a big way. Here is one example:

14465208829_d10429f1bc_b.jpg



This doesn't look right to me, yet I'm not exactly sure why. The images almost all appear to have some blue in them. As a result, they have a very unnatural feel to them.

I'm worried that something has happened to my development process to cause this. Or, is it that the scans are wrong? That would be the best solution, except I have to ship all my film back.

Does anyone recognize what is wrong with this image?

Thanks!
 
I do not understand the problem...
 
Were you expecting a color negative? It looks like a standard b&w image to me.
 
I guess I've failed to describe my issue. No I wasn't expecting color. There seems to be very little black in these images and the grays look blueish to me.

Maybe I'm out of my mind, but my wife thinks they look odd too.
 
Hmm... I do see some unevenness and faint banding in the second photo, especially to the top right.

Also, the centre edifice looks very flat and void of detail.

The best way to remove colouring to a B&W scan is to convert it to greyscale in PhotoShop. Use Channel Mixer, set Green to 100%, Red and Blue to 0% and check the grayscale box. Then set the colour space for the whole file to greyscale.

That will remove any colour shift and may reduce some of the blue-purple banding.
 
A histogram shows a full range of tones from black to white, with a predominance of pixels in the lighter grey region. The subject may have been rather high key. The scanner's response curve might be set poorly for scanning these images. In Irfanview lowering the gamma correction in the color correction panel improves the appearance of these images to me.
 
They all look beautiful to me, when viewed with Nexus 5.
 
Actually, they look fine on my monitor. Perhaps a little lacking in contrast, but that's a matter of taste. With the second shot, to bring up the white in the building, you'd have to either do some careful selecting of the sky to mask it and then brighten the buildings or you'd blow out the sky by lightening the whole scene.
 
JammyB said:
So are you scanning B and W negs in a colour scanner setting? if so there should be a B&W scan mode that should not have a colour cast.

Sent from my GT-I9505 using Tapatalk
Click to expand...

It is actually best to scan B&W negatives in a linear 48bit RGB tiff. After proper inversion and correction, it should be converted to a 16bit greycale image, as per above.
 
Thanks everyone. I am not doing the scanning as I don't own one and have never operated one either. I send out my negatives for scanning and am normally very thrilled with what comes back. This time however, things look odd and I don't know why. Since I do the developing, I fear that something has gone wrong in that area. I can re-scan these again at a later date if that is the problem here. Or, perhaps there isn't even a problem and I am in the wrong, not the images.

Thanks again.
 
RattyMouse said:
I am worried about a recent batch of film that I just got back from the lab for scanning. I developed this film at home, all Neopan Acros in HC-110. I look at these scans and they just seem "off" in a big way. Here is one example:

14465208829_d10429f1bc_b.jpg



This doesn't look right to me, yet I'm not exactly sure why. The images almost all appear to have some blue in them. As a result, they have a very unnatural feel to them.

I'm worried that something has happened to my development process to cause this. Or, is it that the scans are wrong? That would be the best solution, except I have to ship all my film back.

Does anyone recognize what is wrong with this image?

Thanks!
Click to expand...

a high-contrast scene developed a bit on the soft sidewith decent shadow exposure looks right to me.:smile:
 
The photos look fine to me. If I really concentrate, I think I _mite_ be able to see what you are talking about. I don't see a "blue" tint so much as the images seem a little on the "cold" side.
 
They look fine to me. Of course, scans can lie a lot. There are not many really dark (Zone I-II) areas in either scene, but where they exist they have the proper density. Actually, the gradation is excellent, as it usually is with Acros. Don't worry about the tint. That is an artifact of the scanning process, and you can correct it in Photoshop or whatever software you use.
 
Good negative scanning requires a lot of manual work on each frame. That's why lab scans often come out so-so, even if they use expensive scanners.

You can still fix the colour shift in these images by coverting them to greyscale. Using only the green channel, as I descibed above, usually produces the sharpest results. In this case i's especially suitable as you have purple banding, i.e. blue and red.
 
Can't see any blue on my monitor nor can I see anything else wrong either. In the second shot both the sky and building have great detail.

pentaxuser
 
If you are asking about a problem with the negatives then a picture of the negs would be far more useful than 'scans' which were auto-adjusted, then auto adjusted again to get in to the Apug site software. I suggest that you tape a piece of white paper to the window, hold the negs 10cm in front of it, make a picture with your phone (assuming that it has a camera in it) and post the result.
 
I'm just wondering if the 'blue' you're seeing could be your monitor? Have is been calibrated? Not sure if that would be the problem, especially since you say other scans are fine, but it's just a thought. Maybe a combination of a cool monitor and this particular set?
 
last year i made retina prints when i was living in france.
the same paper that at home turned BLUISH
were RED because the light is different in france.
maybe it isn't an issue with the film, but because the quality of light
is completely different where you currently are, and where you usually are.
 
JammyB said:
I had been meaning to try the scanning the blue/green channel only option in Vuescan.

Sent from my GT-I9505 using Tapatalk
Click to expand...

It's even better to scan all channels RGB and then convert to grey scale using the green (or blue) channel after all basic corrections. That way you pick up everything from the negative.
 
I scan all my film with Vuescan software exclusively with Nikon 4000 and 9000 and an Epson 4990 using tips from this page as my initial set up:

http://www.kenleegallery.com/html/tech/scanning.php

Some great advice there and gives me gorgeous scans of B&W film. See my website or Flickr page to see some examples.
 
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