Archived posting to the Leica Users Group, 2006/08/15

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Subject: [Leica] Lens caps
From: bd at bdcolenphoto.com (B. D. Colen)
Date: Tue Aug 15 18:06:37 2006

The less expensive lens, assuming we're talking really minor marks on the
front element - and I'd want a return period to run some pixels through the
camera...or film in the old days. This is assuming there's a significant
savings on an expensive lens.


On 8/15/06 9:01 PM, "G Hopkinson" <hoppyman@bigpond.net.au> wrote:

> Fair enough B.D. just a bit of levity in the proceedings ;-)
> As I say, I don't know what ROR is.
> If you have a choice between two similar lenses, one cheaper but with some
> marks that may not affect the output significantly and one pristine but 
> more
> expensive, which one do you buy (to use or collect)?
> Cheers
> Hoppy
> 
> -----Original Message-----
> From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org
> [mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of 
> B.
> D. Colen
> Sent: Wednesday, 16 August 2006 10:51
> To: Leica Users Group
> Subject: Re: [Leica] Lens caps
> 
> ROR may not carry instructions in German, nor is it branded Zeiss, but it 
> is
> a stunningly good lens cleaner.
> 
> 
> On 8/15/06 8:39 PM, "G Hopkinson" <hoppyman@bigpond.net.au> wrote:
> 
>> Yes Marc, I understand. Most likely you may well get away with it.
>> However there is increased risk with any ad hoc material that could have
>> grit or similar on it, as we all agree.
>> I'm not familiar with ROR (a glass cleaner?) I use a routine recommended
> by
>> Zeiss (sold in various groovy little kits):
>> soft clean brush, some exotic rocket fuel "Optikputzmishung L" and a CLEAN
>> microfibre cloth
>> Now how can it not be good when it has the Zeiss logo on the side and
>> instructions in German ;-)
>> Of course you probably can't take it on an airplane any more and /or it
>> causes sterility in socialist dolphins or some-such.
>> 
>> Since becoming Zeiss and Leica-ised, I have stopped routinely fitting a UV
>> filter for protection. I do understand the pros and cons regarding a
>> sacrificial surface vs theoretical possible image degradation. Actually I
>> think Erwin is fairly cogent on this subject.
>> 
>> Two comments to finish:
>> Since 1972, I have never marked a lens that I can detect (I did drop a
>> Yashica TLR the other day and KILLED it)
>> 
>> I never consider paying for a lens with marked elements, however cheap it
>> may be and irrespective of whether the results may not be significantly
>> affected.
>> 
>> Cheers
>> Hoppy
>> Amateur enthusiast
>> 
>> -----Original Message-----
>> From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org
>> [mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of
>> Marc James Small
>> Sent: Wednesday, 16 August 2006 09:41
>> To: Leica Users Group
>> Subject: RE: Re: [Leica] Lens caps
>> 
>> At 09:19 AM 8/16/06 +1000, G Hopkinson wrote:
>>> Don't do it Adam!
>>> I'm sure that Walt, Ted and many others are fearless enough to get away
>> with
>>> this and bring back the great pictures.
>>> 
>>> Here's the litmus test, are you:
>>> a. a serious hard hitting photojournalist for whom the gear is just a
> tool
>>> (If it dies, it dies, it's just a stinkin' camera) or
>>> b: an enthusiast  photographer who also enjoys the ownership and pleasure
>> of
>>> having fine Leica equipment
>>> (how many sales have you passed on because the seller says, some wipe
> marks
>>> on the glass)
>> 
>> Hoppy
>> 
>> Modern glasses are REALLY tough.  I was shocked, ten or fifteen years
> back,
>> to be working a camera show with the Zeiss Maven, Charlie Barringer, who
>> started cleaning a $4,500 lens with a shirt-tail.  I spluttered in
> protest,
>> and he simply reminded me that the Gnomes of Jena knew what they were
> doing
>> when they made the lens and also that HE knew what he was doing, and would
>> I mind my own washing?
>> 
>> He was absolutely correct.  When I have walked across a sandstorm-driven
>> wind across an arid desert, then I avoid using my shirt-tail, as I
> probably
>> have some grit in the cloth.  But, beyond that, I go for it.  I clean my
>> lenses with ROR when they need it and use a Kleenex as the medium -- but,
>> in the field, I'll pull out a handkerchief to do the job, and have used
>> spit on occasion when that was the only lubricant on hand.
>> 
>> Avoid grit on the lens.  Beyond that, modern lens glasses and coatings are
>> really tough.
>> 
>> And avoid filters.  Erwin Puts disagrees with me on this, but the addition
>> of another layer of glass degrades the final image.
>> 
>> Marc
>> 
>> msmall@infi.net  Home Phone 540-345-5012
>> Cha robh b?s fir gun ghr?s fir!
>> 
>> 
> 
> 
> 
> 
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Replies: Reply from hoppyman at bigpond.net.au (G Hopkinson) ([Leica] Lens caps)
In reply to: Message from hoppyman at bigpond.net.au (G Hopkinson) ([Leica] Lens caps)