Re: [Leica] Re: Noctilux result???? -filters

["Jerry S. Justianto" <jsjm6@cbn.net.id>]

I read all the Leica lenses that I have (35 summicron, 75 lux, 50 noct)
Only Noctilux that stated usage of filter is not recommended.  Other did not
mention anything about not using filter.

JSJ


- ----- Original Message -----
From: Mark Rabiner <mrabiner@concentric.net>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Sunday, January 23, 2000 9:50 AM
Subject: Re: [Leica] Re: Noctilux result???? -filters


> Marc James Small wrote:
> >
> > At 06:50 AM 1/23/2000 +0000, D Khong wrote:
> > >
> > >I've used my Noctilux with and without the filter on, and frankly
folks, I
> > >cannot tell the difference between the two situations.  Whatever
perceived
> > >degradation is, IMHO, only dandruff deep.
> >
> > It is the other way around, Dan.  The degradation caused by filters is
> > real, but only can be seen when REALLY large blow-ups are made.  For
normal
> > use (4" by 5" to some, 5" by 7" to others, even 8" by 10" to yet
others),
> > it probably isn't observable.  But try a 20" by 24" full-frame blow-up,
> > though, and you'll note a difference.
> >
> > It all comes down to those who absolutely, positively must have absolute
> > optical perfection.  Those guys will never use a filter without a
> > colour-correction reason or the like.
> >
> > Marc
> >
> This has all gotten be thinking about filter stuff again.
> I've got B+W 060 yellow-greens at many sizes for every conceivable lens
that I
> have from 24E for my Rollei 35 to Bay 60 for my Hasselblad.
> But one GAP.
> Friday night I picked up a 67 from Pro Photo out of a grab box and it fit
my
> only view camera lens a Fujinon 210!
> So I saved myself a pile of cash as I got it for only $20!
> Now maybe I'll get that camera out and shoot some sheet film!
> But as I'm playing around with the thing I look at the back of the lens
sticking
> out the back of the Lensboard, it is threaded.
> I guessed it was 46mm, wrong. 49 fit! And I've got those because of my 135
3.4
> APO.  Olympus sized!!!! Am I going to same some bucks or what?
> I know AA used to put his gels on the back like that. I like the idea if
feels
> right to me. After the light goes all through the lens it THEN gets
filtered.
> Would the filter then not need to be multi coated as much? I love lenes
with
> rear filter arrangements! Anybody have any behind the scenes insights into
all
> this? I'm going to be tossing and turning all night about this.
Ruminating!
> Mark Rabiner
>