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.
>>>
>>>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.
>>>
>>>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: filmscanners_owner@halftone.co.uk
>>>>>[mailto:filmscanners_owner@halftone.co.uk] On Behalf Of lists
>>>>>Sent: Saturday, August 06, 2005 12:43 PM
>>>>>To: laurie@advancenet.net
>>>>>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: filmscanners_owner@halftone.co.uk
>>>>>>[mailto:filmscanners_owner@halftone.co.uk] On Behalf Of
>>>>>>rkoziol3@comcast.net
>>>>>>Sent: Saturday, August 06, 2005 8:37 AM
>>>>>>To: laurie@advancenet.net
>>>>>>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 listserver@halftone.co.uk, with
>>>>>>>'unsubscribe
>>>>>>>filmscanners' or 'unsubscribe filmscanners_digest' (as
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>appropriate) in
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>>the message title or body
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>--------------------------------------------------------------
>>>>>--------------------------
>>>>>Unsubscribe by mail to listserver@halftone.co.uk, 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 listserver@halftone.co.uk, with 'unsubscribe
>>filmscanners'
>>or 'unsubscribe filmscanners_digest' (as appropriate) in the message
>>title or body
>>
>>
>>
>
>
>
>
>
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