The best commercial lens cleaner I found was distributed by Angeneux's US motion picture lens division. Bern Levy gave kits out to customers that included the cleaning solution and a "book" of very good cleaning tissue. I purchased these kits until they were no longer available.
Jim Stephen Levit wrote: >Has anyone ever used a product called "ROR'. At one time this was >considered an excellent optics cleaner. > > >On Aug 6, 2005, at 6:15 PM, James L. Sims wrote: > > > >>The denatured alcohol I use is an industrial grade that does not have >>the additives found in rubbing alcohol. besides staying away from >>substances that will damage coatings (and magnesium fluoride is >>slightly >>water soluble) the cleaner must not leave residue and should evaporate >>quickly. >> >>Jim. >> >>lists wrote: >> >> >> >>>Denatured alcohol often has gunk in it to prevent your skin from >>>drying. >>>Wintergreen oil is common. They also denature it with wood alcohol, >>>which I don't think is a problem for glass (though quite toxic for >>>humans). >>> >>>The electronics grade alcohol I use is PureTronics Techincal Grade >>>isopropyl. The claim is it is 99.9 percent pure. $7 for 32 oz. >>>http://www.puretronics.com >>>It's not on their website. Stock number 3125. >>> >>>I sppose if you have access to it, "reagent grade" isopropal would be >>>the best. What you want to avoid is the 70% pure junk. >>> >>>For the car windows, I use the cheaper stuff. You should be able to >>>find >>>99% pure alcohol [anhydrous] About $1 for 16oz. Brite-Life is a common >>>brand. >>> >>>The use of cotton balls is mostly from the cleaning instructions of >>>filters. I'm not sure why they prefer cotton balls to lens cleaning >>>tissue. However, when on the road, you can get cotton balls and the >>>nearly pure 99% alcohol at any drug store, rather than having to track >>>down a photo store. >>>http://www.lumicon.com/faq-c.htm >>>I find the cushioning of cotton balls tends to be gentler on the >>>glass. >>> >>>While we are at it, some say canned air can damage glass. I do know >>>that >>>if you don't hold the can perfectly level, refrigerant comes out. >>>There >>>is also talk of thermal shock. I use a scuba tank for my canned air, >>>so >>>I don't know if current genneration canned air products have this >>>problem. I have a Leland CO2 duster as well, but don't use it much as >>>it >>>surely puts out cold air. >>> >>> >>> >>> >>> >>>Laurie Solomon wrote: >>> >>> >>> >>> >>> >>>>>Windex contains ammonia which can etch coatings. Never use it >>>>>on optics. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>I assumed as much but was not sure, which is why I made a point of >>>>articulating my suggestions the way I did and restricting my >>>>suggestion of >>>>Windex's to the plate glass bed of the scanner if it were a flatbed >>>>scanner, >>>>saying to be careful not to let any of it run off the glass into the >>>>innards >>>>of the scanner, and following it with the statement: >>>> >>>> >>>> >>>> >>>> >>>> >>>>>>As for the other parts, you need to be careful not to scratch or >>>>>>leave >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>lint on the >>>> >>>> >>>> >>>> >>>> >>>> >>>>>>surfaces of the optics and mirror. I suspect that one would also >>>>>>need to >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>be careful >>>> >>>> >>>> >>>> >>>> >>>> >>>>>>about what solutions one uses to make sure that they do not leave >>>>>>their >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>own film residue >>>> >>>> >>>> >>>> >>>> >>>> >>>>>>over the optics and mirror, don't contain anything that will >>>>>>deteriorate >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>the internal >>>> >>>> >>>> >>>> >>>> >>>> >>>>>>parts, and do not damage the electronic components and elements. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>> >>>> >>>> >>>>>Electronics grade alcohol is generally accepted as best for >>>>>optics. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>I am unfamiliar with electronics grade alcohol; how does it differ >>>>from >>>>denatured alcohol? I understand why one might not want to use >>>>rubbing >>>>alcohol' but is denatured alcohol the same as electronic grade? >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>>>I use cottonballs rather than cloth. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>I suppose they could work just as well as long as they do not leave >>>>behind >>>>any form of lint or cotton strings or dust. >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>>>-----Original Message----- >>>>>From: [EMAIL PROTECTED] >>>>>[mailto:[EMAIL PROTECTED] On Behalf Of lists >>>>>Sent: Saturday, August 06, 2005 12:43 PM >>>>>To: [EMAIL PROTECTED] >>>>>Subject: [filmscanners] Re: HP PhotsSmart - questions >>>>> >>>>>Windex contains amonia which can etch coatings. Never use it >>>>>on optics. >>>>>Electronics grade alcohol is generally accepted as best for >>>>>optics. I use cottonballs rather than cloth. >>>>> >>>>> >>>>>Laurie Solomon wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>I do not have answers to the question of cleaning the >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>internal optics, >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>mirror, or sensors; nor do I have an answer to why 150 dpi appears >>>>>>sharper than 300 dpi when scanning a 3 x 5 color print. I >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>take it that >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>this is a flatbed scanner. >>>>>> >>>>>>I would suggest the obvious with respect to cleaning. You >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>should start >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>by cleaning the glass bed with a soft lintless cloth and a little >>>>>>Windex, being careful not to let any of the liquid run off the >>>>>>glass >>>>>>and into the internal areas of the scanner. As for the other >>>>>>parts, >>>>>>you need to be careful not to scratch or leave lint on the >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>surfaces of >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>the optics and mirror. I suspect that one would also need to be >>>>>>careful about what solutions one uses to make sure that they do not >>>>>>leave their own film residue over the optics and mirror, >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>don't contain >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>anything that will deteriorate the internal parts, and do not >>>>>>damage >>>>>>the electronic components and elements. >>>>>> >>>>>>As for the question of " why 150 dpi appears sharper than >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>300 dpi when >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>scanning a 3 x 5 color print," you did not tell us if the result >>>>>>you >>>>>>speak of was on the monitor or on a hard copy print ( and if the >>>>>>latter, what type of print laser, inkjet, etc.) The answer to this >>>>>>could furnish some indications of the reasons for this. >>>>>> >>>>>>----Original Message---- >>>>>>From: [EMAIL PROTECTED] >>>>>>[mailto:[EMAIL PROTECTED] On Behalf Of >>>>>>[EMAIL PROTECTED] >>>>>>Sent: Saturday, August 06, 2005 8:37 AM >>>>>>To: [EMAIL PROTECTED] >>>>>>Subject: [filmscanners] HP PhotsSmart - questions >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>>Hi, >>>>>>> >>>>>>>Been reading the posts here for quite some time. Just got into >>>>>>>scanning. In fact the recent thread on Cheap Film Scanners >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>woke me up >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>:-) I have one that's at the bottom of that heap. It's HP >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>PhotoSmart >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>vintage 1997. SCSI interface, which makes it S10 I guess. >>>>>>> >>>>>>>I'm using the current version of HP software from their >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>Support site. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>Did a calibrate with a white piece of paper (the card is gone). >>>>>>>The >>>>>>>scanner was donated by a friend. >>>>>>> >>>>>>>Now the question. I started with a simple color print >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>(3x5) scan and >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>noticed that setting it to 150dpi gives a "sharper" >>>>>>>result than 300dpi. >>>>>>> >>>>>>>Can that be explained in any way? Saved as bmp and jpg, >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>same results. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>Secondly, should I take the scanner apart and attempt to clean any >>>>>>>optical components? I'm quite handy with small tools :-) After >>>>>>>sitting for so many years and some usage by the previous owner, it >>>>>>>must have some film whatever the optical pickup is. >>>>>>> >>>>>>>Regards, >>>>>>> >>>>>>>Rich Koziol >>>>>>> >>>>>>>-------------------------------------------------------------- >>>>>>>-------------------------- >>>>>>>Unsubscribe by mail to [EMAIL PROTECTED], with >>>>>>>'unsubscribe >>>>>>>filmscanners' or 'unsubscribe filmscanners_digest' (as >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>appropriate) in >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>the message title or body >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>-------------------------------------------------------------- >>>>>-------------------------- >>>>>Unsubscribe by mail to [EMAIL PROTECTED], with >>>>>'unsubscribe filmscanners' >>>>>or 'unsubscribe filmscanners_digest' (as appropriate) in the >>>>>message title or body >>>>> >>>>>-- >>>>>No virus found in this incoming message. >>>>>Checked by AVG Anti-Virus. >>>>>Version: 7.0.338 / Virus Database: 267.10.1/64 - Release >>>>>Date: 8/4/2005 >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>-- >>>>No virus found in this outgoing message. >>>>Checked by AVG Anti-Virus. >>>>Version: 7.0.338 / Virus Database: 267.10.1/64 - Release Date: >>>>8/4/2005 >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >>> >>----------------------------------------------------------------------- >>----------------- >>Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe >>filmscanners' >>or 'unsubscribe filmscanners_digest' (as appropriate) in the message >>title or body >> >> >> > > > > > ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body