Archived posting to the Leica Users Group, 2008/07/03

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Subject: Are UV Filters Needed for Proper Exposure on the Water? [was Re: [Leica] Ah! Back to the Great Filter Dispute!]
From: r.s.taylor at comcast.net (Richard Taylor)
Date: Thu Jul 3 20:00:07 2008
References: <C49152FA.1567A%mark@rabinergroup.com>

What I was looking for actually, Mark, was consistent, proper exposure.

You remind me of the advantages of polarizers, though.  I haven't use  
one in decades.  I may have to add one back into to my arsenal.   As  
you say, mustn't lose the sparkly water, though.  That would never  
do.  Never used a circular polarizer before, either.  Could be  
interesting.

Regards,

Dick



On Jul 02, 2008, at 3:44 PM, Mark Rabiner wrote:

> For what you are looking for I'd put a polarizing filter on.
> Not using it at full strength - otherwise it can make such water  
> shots quite
> boring. (why take all the dazzle out?) - lead like.
>
> To me the main thing is sky control. Keeping the sky down. All kinds  
> of ways
> of doing that in B&W. But with color and or digital about the only  
> way is a
> polarizer. A circular one. Circles are great.
> Old Leica glass was made for polarizer use with neat turner built  
> into the
> lens shade.
> That's R glass which does not concern us any more as they are on the  
> way
> out.
> Use of a polarizers is such fun you're really hands on in real time
> controlling the look of an image on the groundglass.
> And in the print the effect seems even more worthwhile than you  
> thought it
> was going to be.
>
>
>
> mark@rabinergroup.com
> Mark William Rabiner
>
>
>
>> From: Richard Taylor <r.s.taylor@comcast.net>
>> Reply-To: Leica Users Group <lug@leica-users.org>
>> Date: Mon, 30 Jun 2008 21:51:15 -0400
>> To: Leica Users Group <lug@leica-users.org>
>> Subject: Are UV Filters Needed for Proper Exposure on the Water?  
>> [was Re:
>> [Leica] Ah! Back to the Great Filter Dispute!]
>>
>> Yesterday I checked exposure with and without the UV filter I use on
>> my lenses when shooting on the water.  The subject was a sailboat on
>> Buzzards Bay on a bright but hazy day.  (The typical Buzzards Bay
>> smokey southwester had filled in.)  This is a situation ripe with UV.
>>
>> The exposure with and without the filter was the same to the accuracy
>> I can measure it in Lightroom.  So, the Nikkor 70-200 mm, f2.8 zoom
>> with 1.4 teleconverter does not need a UV filter to expose properly  
>> on
>> my D300 as Henning had predicted.   Presumably, this is also true of
>> other modern Nikkors.
>>
>> Regards,
>>
>> Dick
>>
>>
>>
>> On Jun 26, 2008, at 1:37 PM, Richard Taylor wrote:
>>
>>> I'm referring to modern Nikkors in this case.  I haven't tried it
>>> with the Nikkors but my GRD2 underexposes by a a stop to a stop and
>>> a half out on the water.   If I remember to do it, I'll try the
>>> lenses with and without the filters to see if there is a difference
>>> when I'm down on the Cape this weekend.
>>>
>>>
>>> Regards,
>>>
>>> Dick
>>>
>>>
>>>
>>> On Jun 26, 2008, at 12:42 PM, Henning Wulff wrote:
>>>
>>>> At 10:42 AM -0400 6/26/08, Richard Taylor wrote:
>>>>> Working from boats and at the seashore I find that a UV filter
>>>>> reduces the tendency towards underexposure caused by all that open
>>>>> sky.  It also keeps salty spray off the front element.
>>>>>
>>>>> Regards,
>>>>>
>>>>> Dick
>>>>>
>>>>
>>>> Richard,
>>>>
>>>> Under your shooting circumstances putting a protective filter on
>>>> makes sense, as salt spray doesn't help any equipment, and can be a
>>>> pain to get off.
>>>>
>>>> On the other hand on the topic of a UV filter reducing the tendency
>>>> to overexposure: I don't believe you....if you are using a Leica
>>>> lens produced in the last 30 years. All Leica lenses have a UV
>>>> blocking function built in.
>>>>
>>>> -- 
>>>> *            Henning J. Wulff
>>>> /|\      Wulff Photography & Design
>>>> /###\   mailto:henningw@archiphoto.com
>>>> |[ ]|     http://www.archiphoto.com
>>>>
>>>> _______________________________________________
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>>>> information
>>>
>>>
>>> _______________________________________________
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>>
>>
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>
>
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Replies: Reply from hoppyman at bigpond.net.au (Geoff Hopkinson) (Are UV Filters Needed for Proper Exposure on the Water? [was Re:[Leica] Ah! Back to the Great Filter Dispute!])
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) (Are UV Filters Needed for Proper Exposure on the Water? [was Re: [Leica] Ah! Back to the Great Filter Dispute!])