Archived posting to the Leica Users Group, 2003/11/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Simon, To answer your question directly, with your scanner there is almost no way to really clean your negatives without causing different damage. But, if you very gently use a clean micro fiber cloth that will remove the stuff you are talking about. Gentle use of a cotton swab will also work for small bits of junk. Troubleshooting your lab 101. The marks are most likely from the last step in the process before drying. If the lab is using roller transport equipment then the replenishment rate on the last step is insufficient to keep that solution fully in spec so the dryer is drying the crud on the film before it can bead off. The last solution is really cheap so kindly ask them to up the rate. If the lab is using dip and dunk then the same issue, they are not properly mixing/replenishing the last solution (essentially photoflo). Should the lab be a true custom lab then you will find it far easier to get them to change as they are processing your film in tanks just like you would at home. Therefore the solution is what I recommended in my first post. Use fresh photoflo for each batch made with at least de-ionized water preferably distilled. Unless you are dealing with very committed people you are going to hear that you are the only one with this problem please go away. Another variation is thank you so much please go away. If otherwise they are a good lab then explain the problem with several of the negatives that they developed and fully explain that you are making large full bleed prints and need that extra step. Truly, the last solution is almost water so incremental cost to them is almost nil. Last, I will make a plea that you start developing your own B&W. Really, one changing bag, one four reel tank, four Hewes reels, two 4-5 liter brown bottles, your choice of container for developer(see LUG archives for source of 100ml brown reagent grade bottles), a kitchen timer, two or three graduates, a plastic garment bag for film drying, and less than one hour per batch. B&W is very easy, gives you full control, and lets you add a dimension of control to your photography that you would not believe. The only reason to not roll your own is you have just purchased a spanky new digital camera... :( Don dorysrus@mindspring.com - -----Original Message----- From: owner-leica-users@mejac.palo-alto.ca.us [mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of animal Sent: Sunday, November 23, 2003 9:04 AM To: leica-users@mejac.palo-alto.ca.us Subject: Re: [Leica] scanner/camera defect/artifact question Thank,s Don, Did a lot of trouble shooting this afternoon and found that the marks rub of easily and are only on the shiny side of the strips.So I started looking inside the camera for a source of the dirt .Took me a long time to realise that it would be simplest to run a roll through and see what that looks like .Not a mark. So after reading your post i think that there must be something wrong in the lab where they processed the film. Next time i,ll clean the film before scanning. Is there a safe way to do that? > Simon, > Actually, it is probably somewhere in the processing that is causing the > blockage of light to your scanners sensor. Almost always what the > camera can do is scratch or physically damages the film. > > So, the most probably cause is that you squeegee the photoflo off your > negatives just before you dry them and this is the build up around the > sprocket holes. Even if you do not squeegee then I would make sure you > are using fresh photoflo at the correct ratio of 1:200 with distilled > water. > > Another cause could be in the developer as I sometimes get marks similar > to these when I am a little careless mixing Xtol as that developer seems > to be really sensitive to water quality. > > Last, a scanner such as you have will find any defect in the film and > even if you remove all imperfections in the entire process you will > still find yourself chained to the clone tool. > > Don > dorysrus@mindspring.com > > -----Original Message----- > From: owner-leica-users@mejac.palo-alto.ca.us > [mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of animal > Sent: Sunday, November 23, 2003 6:55 AM > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] scanner/camera defect/artefact question > > I presumed it was the scanner since i could not find the defects on the > negs > when using a light table. > However with a strong oblique light and loupe found that the damage is > on > the negatives themselves so it has to be the camera a m3. > Any suggestions where to investigate further? > Thanks again and sorry for the previous question. > simon jessurun > > > > Hello > > Sometimes my scanner produces these dots along the sides of negatives > . > > http://www.leica-gallery.net/apekop/image-56634.html > > http://www.leica-gallery.net/apekop/image-56635.html > > My scanner is a Nikon 4000 ed. > > Have any of you encountered this before? > > And if so what can I do about it? > > Beforehand thanks > > simon jessurun > > -- > > To unsubscribe, see > http://mejac.palo-alto.ca.us/leica-users/unsub.html > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html