 Greg D. Leeah |
horizontal lines before printing All of my photos recently have had horizontal lines running through them. to see an example see the photo of the bird w/ the blue background in my gallery. I developed them at walgreens 1 hour and had them put on a CD- I know not the best choice but im broke! Is the problem in the developing or in the camera? I've had the problem with all types of film and aperture/shudder settings. I tried lookin at the negatives to see if I could see the lines but I couldnt tell. any help would be appreciated!
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Andrew Laverghetta |
It's probably the way it was scanned. Somethign similar happens with my Dell Document scanner which isn't the same thing but I'm guessing it's somewhat similar. You said that this photo you referred to is from a scan at walgreens or the negative? It's probably just a bad scanner that they have or something that might have happened when they did whatever processing they might have done to it. It looks kind of like noise of some sort or an uneven scanning thing. I'm sure somebody that's more experienced with those types of developing, printing and scanning processes would be able to contribute a better answer though.
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Alan N. Marcus |
It is absolutely imperative that you examine your negative with great care. A magnifying glass should be used. Examine each frame by reflected light and again via transmitted light. Change the angle of the negative as you examine them. You are looking for scratches and/or pressure marks etc. Pressure marks can come from a faulty camera advance path or a faulty cassette throat. Pressure marks generated in the camera often cause the film to become locally sensitize. The result will be weak lines running with the film and slightly darker than surrounds. When printed, the lines are lighter than the surrounds. Pressure marks can also be caused by a faulty advance mechanism inside the film developing machine. If produced while submerged in the developer, the pressure desensitizes the film. Desensitized areas appear lighter than surround on the negative and print darker than surrounds on the finished print. Pressure marks can be formed on photo paper by a faulty transport path inside the printer or paper developing machine. Such marks are usually positive density (darker than surrounds), however if pressure was applied while in the developer, the resulting lines will be lighter than surrounds. A common printing method employed by modern digital photofinishing printers: Each negative is scanned and digitize. The digital image is then exposed electronically onto conventional photo paper. The exposing print engine, if defective, can produce lines such as those seen in your bird picture. Generally, the lines are in every picture but because they are barely discernible, you only notice them is mundane, uniform areas like clear blue sky. If after carefully looking at the bird negative and don’t see the offending lines, have reprints made at another lab. Defects on the film follow lab to lab. Defects induced by a photofinishing printer do not travel. Assuming the reprints are free of defects, return with them to the offending lab. Challenge the lab to match the satisfactory reprints and/or refund your money. Alan Marcus (50 + years experience in photofinishing)
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Andrew Laverghetta |
That sounds like it could be the case too. Just something to help in checking this stuff out...I like to use the my computer moniter to help look at slides and negatives. I just turn on notepad or any other word processing program where the screen is mostly white and use that as a back light to look through the film since it's so even.
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