Neal
member
Reged: 19/06/2006
Posts: 149
Loc: Oxfordshire, UK
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Hi Folks
Having troubles with a few recently developed films.
Have started to notice some a couple of black streaks appearing right down the centre of my negs....not on every frame.....and films taken from different 35mm cameras.
Looking at the negs...it's a feint black line spot on through the middle.
I always let the film get up to temperature before putting in the cameras, put into the dev tanks in a dark room AND inside a changing bag and developing is as per instructions (Kodak D76 with 2 slow inversions every 30 seconds)
I am going to try a different reel (i use Kaiser easy load with the bulky plastic thing on them which helps the film load quicker and easier) and use the standard paterson one without the extra bit, though if it were that scratching (in fact anything scratching) the neg it'd simply remove the emulsion and leave white streaks on the negs....right?
any ideas?
Fortunately not lost anything important...but need to sort this one out.
thanks
Neal
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OneTen
'Two Breakfasts'
Reged: 23/06/2003
Posts: 2452
Loc: Devon
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Do you use a film squeegee to remove excess water before drying? If so, check whether the rubber has perished.
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Richard .......... My Website - My Blog - My Flickr
Edited by OneTen (07/12/2007 12:14)
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Neal
member
Reged: 19/06/2006
Posts: 149
Loc: Oxfordshire, UK
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Not a chance!! Learnt that mistake very early on! 8-)
I very gently wipe excess water off with some good quality kitchen towel and then hang it up to dry. Also, the scratches would be white wouldnt they if the emulsion was being scratched?
Thanks for the comment
Neal
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OneTen
'Two Breakfasts'
Reged: 23/06/2003
Posts: 2452
Loc: Devon
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I was thinking of perished rubber being deposited on the film surface. Just a thought 
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Richard .......... My Website - My Blog - My Flickr
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taxor
Reged: 09/07/2004
Posts: 555
Loc: Lancaster, UK
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Although it may not remedy the scratching, I wouldn't use anything to wipe off excess water. Just soak the film in some wetting agent and hang it up to dry. It's obviously not a camera fault if, as you say, it happens on multiple cameras. Film stock? Could be. Dev tank/reels - most likely. Maybe if you could show us an example? regards, T.
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"I wanna hold your gland". Lemming & McCartney
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Neal
member
Reged: 19/06/2006
Posts: 149
Loc: Oxfordshire, UK
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Here's one of the photos in question.......it's not thwe entire roll..just in sections.
Thanks
Edited by Neal (07/12/2007 18:05)
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NorthernMonkey
enthusiast
Reged: 01/05/2007
Posts: 271
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Looks like youve creased the film when loading it onto the reel
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zx9
old hand
Reged: 22/06/2007
Posts: 907
Loc: London
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I am not sure about the shape of the dark patch, but have you tried re fixing the films? May be worth trying with a sample strip of six neg, usually under-fixing 35mm shows as streaks way from the sprocket holes. (assuming this in not a vertical crop from a landscape 35mm frame)
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ZX9 (Keith)  
My Flickr Pictures
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beejaybee
Marvin
Reged: 18/07/2007
Posts: 4444
Loc: Really Here In Name Only
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Quote:
Here's one of the photos in question.
Is that a pair of parallel "streaks" running from the bottom of the windscreen support up to the top of the frame?
Just a couple of thoughts:
1. One thing which can cause selective fogging of negatives is static electricity. You're not using plastic reloadable cassettes are you?
2. If you have a watch with luminous markings on it, take it off before ferreting around in the changing bag to load tank spirals.
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Gordon_McGeachie
Joke Historian
Reged: 19/01/2007
Posts: 3978
Loc: East Yorkshire,
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Quote:
I wouldn't use anything to wipe off excess water. Just soak the film in some wetting agent and hang it up to dry.
When using the final wash with wetting agent, I used to use my fingers dipped in the same to wipe the excess off.
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She (Avro Vulcan XH558)Took To The Sky Like A Lovesick Angel.
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Ellie527
addict
Reged: 09/01/2007
Posts: 558
Loc: near the Hampshire coast
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Oops!  Sorry to butt in to a sensible conversation, but I misread the title and thought somebody had reverted to using gravy browning or eyebrow pencil to make it look as if they were wearing stockings.
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Ellie's pictures
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John_K
addict
Reged: 03/09/2006
Posts: 560
Loc: North Yorks
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I always wipe my film partially dry using a 'J' cloth. Only use a portion of the cloth but cut the original and use about 1/4 for 4-5 films. never had a streak, scratch or watermark since using this method.Fold it over so you have 2-4 thicknesses and place between thumb and forfinget and pull the film through in one motion.
J Cloths are cheap as chips in Tesco's, Asda etc.
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sey
nag picker
Reged: 22/12/2004
Posts: 2797
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why on earth would an African person run naked on your negs!!!!!!!!!! 
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sey
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spinno
Curmudgeonly Fellow
Reged: 07/02/2007
Posts: 2750
Loc: Nottingham
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Quote:
J Cloths are cheap as chips in Tesco's, Asda etc.
yeah..something to do with all that rain we had in the summer.... 
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David
Simplicity has been held a mark of truth; it is also a mark of genius. - Thomas Carlyle
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