using filter step up rings

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Does using a 72mm circular polarising filter on a 58mm lens via an
adapter ring have any impact on image quality ?
 
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In article <d83rm9$cq3$2@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com>,
NC <me@home.com> wrote:

> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?

No but the thinner the step up ring the better to keep the filter
surface as close as possible to the front element of the lens to
eliminate any possibility with wide angle lenses at small stops from
having anything on the surface of the filter interfere with the image.
In other words so dust or fingerprints or smudges are totally out of
focus.

--
To reply no_ HPMarketing Corp.
 
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NC wrote:
> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?

I assume you mean "compared with using a 58mm filter".

I use step-up rings for both a circular polarising filter and a
close-up lens, (Nikon 5T), apparently without extra problems. (I step
up to less than 72mm, but that shouldn't make a difference).

You obviously need a step-up ring that doesn't project too far forward
at the 58mm diameter, but that isn't technically hard. (Although I
often use a UV filter for protection, I remove that when adding
anything extra).

--
Barry Pearson
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http://www.birdsandanimals.info/
 
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> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?

I personally have not noticed any other than the obvious effects of the
filter.

I've got 2 step filters and in the case of one lens have to use them both.
So far, so good.

--
Mark

Photos, Ideas & Opinions
http://www.marklauter.com
 
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NC wrote:
> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?

Non, unless it causes it to block part of the image, which I would guess
is not likely.

--
Joseph Meehan

Dia duit
 
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NC wrote:

> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?

Beyond the intended effect of the filter no. The filter is marginally
further from the lens but that isn't a big issue for quality.

You could get vignetting if you used a 58mm filter on a 72mm threaded
lens though.

Regards,
Martin Brown
 
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NC wrote:
> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?

I've used both sized filters on the 58mm lens (58mm polarizer and 72mm
polarizer with a step up ring) and have noticed no difference at all. I
went to the step up ring after my 58mm polarizer was permanently borrowed :(

It was cheaper to buy a step up ring and another lens cap than to buy a new
polarizer (you will need another size lens cap if you want to leave the step
up ring on).
 
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Gaderian wrote:
> NC wrote:
>
>>Does using a 72mm circular polarising filter on a 58mm lens via an
>>adapter ring have any impact on image quality ?
>
>
> I've used both sized filters on the 58mm lens (58mm polarizer and 72mm
> polarizer with a step up ring) and have noticed no difference at all. I
> went to the step up ring after my 58mm polarizer was permanently borrowed :(
>
> It was cheaper to buy a step up ring and another lens cap than to buy a new
> polarizer (you will need another size lens cap if you want to leave the step
> up ring on).
>
>

Thanks for all the replies - much appreciated.
 

Tony

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Archived from groups: rec.photo.digital (More info?)

There is always the possibility of vignetting, but if it is not a wide angle
lens (at least less than 28mm on a 35mm camera - probably less than 24 on
most digitals) this should not be a problem.

--
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home of The Camera-ist's Manifesto
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"NC" <me@home.com> wrote in message
news:d83rm9$cq3$2@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
> Does using a 72mm circular polarising filter on a 58mm lens via an
> adapter ring have any impact on image quality ?
 
G

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Archived from groups: rec.photo.digital (More info?)

NC <me@home.com> writes:

> Does using a 72mm circular polarising filter on a 58mm lens via an adapter
> ring have any impact on image quality ?

Only if the ring is small enough that it causes vignetting (you should be ok
with a 58->72 step up ring), or alternatively use of a step up ring causes you
not to use the hood that came with the lens, and your lens flare because you
are shooting into the sun. I assume you already have the CP filter? If not,
note that the quality CP filters tend to get rather expensive as you get to the
larger sizes.

More to the point, the filter you use will have an impact on image quality.

--
Michael Meissner
email: mrmnews@the-meissners.org
http://www.the-meissners.org
 
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Michael Meissner wrote:
> NC <me@home.com> writes:
>
>
>>Does using a 72mm circular polarising filter on a 58mm lens via an adapter
>>ring have any impact on image quality ?
>
>
> Only if the ring is small enough that it causes vignetting (you should be ok
> with a 58->72 step up ring), or alternatively use of a step up ring causes you
> not to use the hood that came with the lens, and your lens flare because you
> are shooting into the sun.


Hmm, it could also make the flare worse by drawing in light from the
edges conceivably. So flare is the drawback of a step up filter
arrangement unless you could put a big hood on the end.


> I assume you already have the CP filter? If not,
> note that the quality CP filters tend to get rather expensive as you get to the
> larger sizes.
>
> More to the point, the filter you use will have an impact on image quality.
>

--
Paul Furman
http://www.edgehill.net/1
san francisco native plants
 

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