UV protectors on lenses

On Sun, 02 Oct 2005 17:17:05 -0400, Bob Salomon
<bob_salomon.DeleteThis@mindspring.com> wrote:

>In article <i3g0k15srffrn98f5js6dounsioqcv7l55.DeleteThis@4ax.com>,
> Rich <none.DeleteThis@none.com> wrote:
>
>> multicoated B&W or Hoya filters
>
>Unless you want the very best and then it is Heliopan.

Actually, none of them are the best. The best are multi-layer
dielectric discrete cutoff or notch filters, but $500 is alot to spend
for a filter not being used in a really critical application.
What would be interesting (but probably impossible) would be a filter
that could reduce dynamic range in an image so under/overexposure
in images with wide dynamic ranges would be reduced. No more worry
about sunny days with light and shadow.
-Rich
 >> Stay informed about: UV protectors on lenses 

On Sun, 02 Oct 2005 17:17:05 -0400, Bob Salomon
<bob_salomon.TakeThisOut@mindspring.com> wrote:

>In article <i3g0k15srffrn98f5js6dounsioqcv7l55.TakeThisOut@4ax.com>,
> Rich <none.TakeThisOut@none.com> wrote:
>
>> multicoated B&W or Hoya filters
>
>Unless you want the very best and then it is Heliopan.

And for some really interesting filters that could have
applications for terrestrial photography, check out
Sirius Optical or Baader Planetarium. I think the Neodymium
filters are making their way to conventional photography.
 >> Stay informed about: UV protectors on lenses 

I agree that they aren't so necessary. It's classic product
cross-selling.. like buying the salsa with doritos. I was always super
extra ultra careful not to have a single spec of dust on my lenses
thinking it made much of a difference. Then I started using a
scratched Nikon lens (we're talking visible scratches here!) and
results were always perfect with no noticeable effect! No one would
ever know that the images were taken with a scratched lens.

So worrying about a bit of dust or even a small scratch or two is just
being paranoid and over protective.

We are not buying better image quality when we put UV lenses, we are
merely buying piece of mind... that's all.

Sam
 >> Stay informed about: UV protectors on lenses 

John H. Holliday <nospam@okcorral> wrote:
>"Ray Fischer" <rfischer.TakeThisOut@bolt.sonic.net> wrote in message

>> One simple test for quality is to shine a light at the filter and look
>> at the reflection. If the relfleciton is the same color as the light
>> then it's a lower-quality filter. If it's dark and blue/green then
>> it's a better filter.
>
>Silliest thing I ever heard...

Don't mock what you are incapable of understanding, fool. Filters
with anti-reflection coatings are almost always of better quality.

--
Ray Fischer
rfischer.TakeThisOut@sonic.net
 >> Stay informed about: UV protectors on lenses 

In article <4340C0A1.1BCDFC85.RemoveThis@heaven.net>,
"Anabella M." <"dear_god_not _spammed_again"@heaven.net> wrote:

> Where do the "Rodenstock" brand of filters stand?

They are Heliopan filters. Heliopan is Rodenstock's filter supplie.

--
To reply no_ HPMarketing Corp.
 >> Stay informed about: UV protectors on lenses 

In rec.photo.equipment.35mm Randall Ainsworth <rag RemoveThis @nospam.techline.com> wrote:
>
> I've never used 'em. It's just something else in front of the lens to
> muck up the image. Never smashed a lens into something either in almost
> 40 years of photography.

Ever seen a defect resulting from reflections from the UV (or any other)
filter?

--
Sander

+++ Out of cheese error +++
 >> Stay informed about: UV protectors on lenses 

In article <1128322129.424777.DeleteThis@haldjas.folklore.ee>, Sander Vesik
<sander.DeleteThis@haldjas.folklore.ee> wrote:

> > I've never used 'em. It's just something else in front of the lens to
> > muck up the image. Never smashed a lens into something either in almost
> > 40 years of photography.
>
> Ever seen a defect resulting from reflections from the UV (or any other)
> filter?

I have seen filters result in unwanted reflections in images...some of
my own in years past. I don't see the necessity for UV filters with
digital. It ain't film no more.
 >> Stay informed about: UV protectors on lenses 

In rec.photo.digital Alturas <username DeleteThis @isp.com> wrote:

: For better or worse I've always used a filter. I worry not only about
: the glass, but dust getting inside the sliding barrels, especially
: with zooms. Filterless sort of seems like driving a car without a
: windshield.

I agree. I figure any time I take my camera out of a protective case there
is a chance that some contaminant will make contact with all external
surfaces. Even removing a lens cap allows a risk of a tiny touch of
fingerprint. Taking a photo in the kitchen while meat is being cooked runs
the risk of airborn grease. Even in the case there is dust, lint and such.

Given all these contaminants there is a high likelyhood that I will have
to clean the most external surface of the lens on a regular basis. And
anything that has to be cleaned has an increased chance that some abrasive
substance may be present in the contaminant or the cleaner fluid/pad that
could cause a minor scratch or abrasion. I would much prefer that this
happen on a easily and inexpensive surface (such as a UV filter) than on
the lens itself.

Now I agree that I have never yet had a single "protective" filter become
unuseable, but I also have never had to use my catastrophic injury
insurance either. BUt I feel better having both insurances in place.
True, if I drop a lens from 6' onto concrete the filter won't be much
help. But having a filter does not (IMHO) adversely effect my photography
in any way. And the peace of mind that the filter inspires (even if it is
more delusion than truth) is well worth the minor cost.

BTW, to the OP, if the filter is getting noticeably fogged or damaged and
a good cleaning isn't helping, then it may be time to get a new one. My
advice, get the best quality that you can afford, as it will reduce the
chances of adverse effects being applied to your photos. JMHO

Randy

==========
Randy Berbaum
Champaign, IL
 >> Stay informed about: UV protectors on lenses 

In article <031020050556580691%rag@nospam.techline.com>,
Randall Ainsworth <rag.DeleteThis@nospam.techline.com> wrote:

> I have seen filters result in unwanted reflections in images.

What filter?
Whose filter?
Multi-coated on both sides filter?
Solid glass filter?
Sandwiched filter?
Uncoated filter?
Single coated filter?

Where was the light?
Would there have been a reflection without the light coming from that
direction?
Was the unwanted reflection caused by a poor filter, a non-multi coated
lens or the angle of the light?
With or without an effective hood like a compendium?

What did the reflection look like?

--
To reply no_ HPMarketing Corp.
 >> Stay informed about: UV protectors on lenses 

In article <bob_salomon-2AB3C7.09234003102005.RemoveThis@news.isp.giganews.com>,
Bob Salomon <bob_salomon.RemoveThis@mindspring.com> wrote:

> What filter?
> Whose filter?
> Multi-coated on both sides filter?
> Solid glass filter?
> Sandwiched filter?
> Uncoated filter?
> Single coated filter?
>
> Where was the light?
> Would there have been a reflection without the light coming from that
> direction?
> Was the unwanted reflection caused by a poor filter, a non-multi coated
> lens or the angle of the light?
> With or without an effective hood like a compendium?
>
> What did the reflection look like?

Haven't you ever seen movies where a car with the headlights on comes
around the corner and you can see more than one set of headlights?
Jeez...get a clue?
 >> Stay informed about: UV protectors on lenses 

In article <031020050641372363%rag@nospam.techline.com>,
Randall Ainsworth <rag.TakeThisOut@nospam.techline.com> wrote:

> In article <bob_salomon-2AB3C7.09234003102005.TakeThisOut@news.isp.giganews.com>,
> Bob Salomon <bob_salomon.TakeThisOut@mindspring.com> wrote:
>
> > What filter?
> > Whose filter?
> > Multi-coated on both sides filter?
> > Solid glass filter?
> > Sandwiched filter?
> > Uncoated filter?
> > Single coated filter?
> >
> > Where was the light?
> > Would there have been a reflection without the light coming from that
> > direction?
> > Was the unwanted reflection caused by a poor filter, a non-multi coated
> > lens or the angle of the light?
> > With or without an effective hood like a compendium?
> >
> > What did the reflection look like?
>
> Haven't you ever seen movies where a car with the headlights on comes
> around the corner and you can see more than one set of headlights?
> Jeez...get a clue?

Yes and frequently that is caused by the light reflecting off of the
lens elements themselves.

--
To reply no_ HPMarketing Corp.
 >> Stay informed about: UV protectors on lenses 

"Robert C." <robc638killspam.TakeThisOut@sympatico.ca> wrote:

>"Bob Salomon" <bob_salomon.TakeThisOut@mindspring.com> wrote in message
>news:bob_salomon-37E52F.17170502102005@news.isp.giganews.com...
>> In article <i3g0k15srffrn98f5js6dounsioqcv7l55.TakeThisOut@4ax.com>,
>> Rich <none.TakeThisOut@none.com> wrote:
>>
>>> multicoated B&W or Hoya filters
>>
>> Unless you want the very best and then it is Heliopan.
>>
>> --
>> To reply no_ HPMarketing Corp.
>
>From my understanding, the best filters are Hoya and Heliopan. I use Hoya
>myself.


There are several different grades of Hoya filters. The cheaper
grades are just like any other cheap filters. The HMC filters are
good, but are very difficult to keep clean. I think there is now
another range above HMC but it isn't one that I have tried - I gave up
trying Hoya filters a long time ago.

The best filters are the top camera brands plus B+W, Heliopan and
Rodenstock, all of which are top quality coated filters made from
Schott glass. Heliopan filters are normally slightly cheaper than
their B+W equivalents. Rodenstock filters are relatively rare. All
of these are superior to Hoya.
 >> Stay informed about: UV protectors on lenses 

In article <rs22k1h19cu7tdqm7le5gl25t6d38k7vqr RemoveThis @4ax.com>,
Tony Polson <tp RemoveThis @nospam.co.uk> wrote:

> Rodenstock filters are relatively rare.

Only in the USA as the Heliopan and the Rodenstock distributor are the
same company and the Rodenstock filters are Heliopan filters. In
countries where the Rodenstock and Heliopan distributors are different
the Rodenstock branded filters are readily available. Canada for
instance.

--
To reply no_ HPMarketing Corp.
 >> Stay informed about: UV protectors on lenses