Archived posting to the Leica Users Group, 1998/02/01

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Subject: Re: [Leica] Filters (this is the test!)
From: Donal Philby <donalphilby@earthlink.net>
Date: Sun, 01 Feb 1998 00:00:24 -0800

All those in favor of a law requiring a filter drawer in every lens
please type the exclamation point on your ballot.  Those opposed please
signify by staring almost but not quite directly into the sun using a
49mm filter (of your choice) like a monicled English aristocrat.

donal

Jim Brick wrote:
> 
> >At 06:21 PM 1/31/98 -0500, someone else wrote:
> >
> >>Seriously, can someone propose a simple test,like shooting a scene with and
> >>without the UV filter, under prescribe conditions so that we settle this
> >>matter
> >>once and for all. Lets wait for the results
> >
> 
> At 09:36 PM 1/31/98 -0500, Thomas Kachadurian wrote:
> 
> >I can give you a few.
> >
> >1. Try any scene with point light sources, not as bright as the sun, but an
> >evening scene with street lights for example. With a filter you'll find
> >ghosting from the lights. The wider the lens, the worse the effect, but
> >you'll see it.
> >
> >2. 35mm Summicron with hood over sand, snow or any light foreground. The
> >hood covers the front element well, but add a filter and you get stray
> >light from the sand. You will not see softness, but a reduction in contrast
> >>from the stray light.
> >
> >3. Anytime you are shooting into your light source, even if the light
> >source is not in the frame.
> >
> >Try it, and you'll be leaving those filters behind
> >
> Tom
> 
> This is true. This is exactly the problem with always leaving a filter on
> your lens. Leave your UV filters behind. Bring your other filters (pola,
> warm, grads, etc) and use them carefully, under controlled circumstances.
> 
> Jim

- -- 
Donal Philby
San Diego
http://www.donalphilby.com