[rollei_list] Re: OT: Zeiss lens cleaning wipes?
- From: chatanooga@xxxxxxxxx
- To: rollei_list@xxxxxxxxxxxxx
- Date: Fri, 30 May 2008 11:03:21 +0100
Hi Richard
I think you have also recommended isopropyl alcohol as something to add for
the final rinse when washing film? Sounds like versatile stuff that I should
try. Is it sold as you call it here or is there a product name?
rgds
Chat
On Thu, May 29, 2008 at 7:41 PM, Richard Knoppow <dickburk@xxxxxxxxxxxxx>
wrote:
>
> ----- Original Message ----- From: "Marc James Small" <
> marcsmall@xxxxxxxxxxx>
> To: <rollei_list@xxxxxxxxxxxxx>
> Sent: Thursday, May 29, 2008 10:11 AM
> Subject: [rollei_list] Re: OT: Zeiss lens cleaning wipes?
>
>
> At 10:38 AM 5/29/2008, Choiliefan@xxxxxxx wrote:
>
>> Hello,
>> Has anyone here used the Zeiss individually wrapped moist lens cleaning
>> tissues I see for sale on ebay?
>> Are they any good or comparable to a less expensive, easily found
>> alternative?
>> Health, Peace
>> Lance
>> Selma, NC 27576
>>
>>
> Lance
>
> These are available for a decidedly low cost at
> Wal-Mart. But they are intended to service
> eyeglasses and not camera lenses. Micro-fiber is
> the way to go for camera lenses and the like.
>
> Marc
>
>
>
> msmall@xxxxxxxxxxxx
> Cha robh bàs fir gun ghràs fir!
>
> I am not happy about micro-fiber cloths or anything else that gets
> re-used for cleaning lenses. The cloth can pick up grit and cause
> scratching. The same goes for lens brushes.
> Probably the safest method is to use Kim Wipes and 99% isopropyl
> alcohol. Kodak lens cleaning tissue, if its still made, feathered nicely and
> makes good one-shot brushes. The instructions used to be on the package. it
> will also work with Kim Wipes. roll the tissue up and tear it in half. Fold
> the torn halves together and use as a brush to remove dust. Use it once and
> discard it.
> Nearly all commercial lens cleaners are made of diluted ammonium
> carbonate. Windex, and similar glass cleaners, are made of ammonium
> hydroxide. Since highly alkaline substances are capable of dissolving
> certain kinds of glass the use of the less alkaline carbonate is safer
> although I've never seen any damage from using Windex.
> Some newer glass cleaners use butyl alcohol as the main ingedient, these
> are usually called "streak free" and are recommended by Hewlett-Packard for
> cleaning scanner windows.
> Plain isopropyl or ethyl alcohol will remove most oily substances from
> lenses and not leave a residue. Pure (dry) isopropyl is available at some
> drugstores and at computer stores. Ethyl alcohol is taxed and hard to fined.
> Supposedly Everclear (is that the name) is pure ethyl but is taxed as liquor
> so is expensive. I don't think ethyl has any advantage over isopropyl for
> lens cleaning.
> Lenses should not be cleaned unless there is a good reaon to do so.
> Surface dust and lint can usually be blown off with a hand bulb or light
> application of canned air.
> Beware that isopropyl alcohol (and probably other types) dissolves the
> material of which the Rolleigrid is made. Clean these only with diluted
> dishwashing detergent and water. No lens cleaner either because nearly all
> of them contain alcohol.
> BTW, the "magic" lens cleaners appear to be nothing more than isopropyl
> alcohol with sometimes a bit of wetting agent in them.
> No lens cleaner will fix scratches or damage to coatings.
>
> Also beware of getting lens cleaner into the edges of the lens. While
> the retaining rings are supposed to seal off the lens they are not always
> effective. Lens cleaner which gets into the interstice can damage edge paint
> or even get into the lens. If it gets into a sealed air space it can take
> residue with it and require disassembly of the cell for cleaning. Some
> recommend holding lenses facing downward to clean them but lens cleaner can
> wick up the gap so just don't use too much. Always apply the cleaner to a
> tissue, never directly onto the lens.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
>
>
>
> ---
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