Using Polarizing Filter With Skylight Filter

I just picked up a Hoya 49mm circular polarizer. The question I pose to you
is this, I use Hoya Skylight 1B filters on my 55mm and 135mm lenses. I've
read that with wide angle lenses you shouldn't use additional filters with
the polarizer. But with the 55mm and upwards am I at risk of vignetting if I
use the skylight as well as the polarizer?

Firstly I put the polarizer right over the skylight, but then thought if I
put the skylight over the polarizer it would be good for protection mainly,
but also warming the image slightly since the polarizer loses a stop or
two..
Am I heading for bad news?

Michael Yates wrote:
I just picked up a Hoya 49mm circular polarizer. The question I pose to you
is this, I use Hoya Skylight 1B filters on my 55mm and 135mm lenses. I've
read that with wide angle lenses you shouldn't use additional filters with
the polarizer. But with the 55mm and upwards am I at risk of vignetting if I
use the skylight as well as the polarizer?

Shouldn't have a probelem - but film is cheap - try it on a few shots
and see for yourself.


Firstly I put the polarizer right over the skylight, but then thought if I
put the skylight over the polarizer it would be good for protection mainly,
but also warming the image slightly since the polarizer loses a stop or
two..


Love CPs - I do use a skylight or UV filter when not using a "fancy"
filter - just makes sense - the one guy responded he never ruined a
lens - good for him - I'm not rich so a small amount of protectiojn
doesn't hurt - and if I don't want the skylight filter on for the shot
- I take it off, shoot, put it back on.

Now as for a CP and a skylight together - I don't think the skylight
does much for you, and doubtful you'll see any difference with or
without it - but then again - take 2 shots of the same composition,
shutter, and f-stop settings - both with the CP, but one with the
Skylight - see if you see any difference that's worth the effort.

Jim

Jimbo wrote:
if I don't want the skylight filter on for the shot
- I take it off, shoot, put it back on.

Isn't that the function of the lens cap?

Annika1980 wrote:
Jimbo wrote:
if I don't want the skylight filter on for the shot
- I take it off, shoot, put it back on.

Isn't that the function of the lens cap?

Can't shoot with the lens cap on!

My statement involves the use of some kind of filter over the lens
being that replacing a $20-30 filter is cheaper than a $300-500 lens.

Jimbo wrote:
My statement involves the use of some kind of filter over the lens
being that replacing a $20-30 filter is cheaper than a $300-500 lens.

If you've paid much attention to lenses for sale on ebay, many of them
have bent filter threads. A UV or skylight would likely prevent most
of
these types of damage.

Jim wrote:

If you've paid much attention to lenses for sale on ebay, many of them
have bent filter threads. A UV or skylight would likely prevent most
of these types of damage.

I wonder how many of those filter threads were ruined by filters that
got stuck and were pried off?

Jimbo wrote:
Annika1980 wrote:
Jimbo wrote:
if I don't want the skylight filter on for the shot
- I take it off, shoot, put it back on.

Isn't that the function of the lens cap?

Can't shoot with the lens cap on!

My statement involves the use of some kind of filter over the lens
being that replacing a $20-30 filter is cheaper than a $300-500 lens.

And my point is that when you're shooting you shouldn't have anything
on there.
Also, a $2 lens cap is cheaper than a $20-$30 filter.
Presumably, you paid big bucks for an expensive lens that you wish to
protect. If you're gonna muck up the image quality with a UV filter,
you've wasted your money.
It's like buying a beautiful new car and ruining the looks of it by
putting one of those bras on the front to keep the bugs off.

Annika1980 wrote:
And my point is that when you're shooting you shouldn't have anything
on there.
Also, a $2 lens cap is cheaper than a $20-$30 filter.
Presumably, you paid big bucks for an expensive lens that you wish to
protect. If you're gonna muck up the image quality with a UV filter,
you've wasted your money.
It's like buying a beautiful new car and ruining the looks of it by
putting one of those bras on the front to keep the bugs off.

First off - friggin relax - what's your problem?

And what do you mean you should NEVER have anything on the lens - yeah,
us nature and landscape photographers are really stupid for using a
Circ Polarizers - also isn't UV filters that gives you that cool effect
when there is humidity in the air and you use a telephoto - sorry
Anniak - some of us like to be creative - and I buy used $300+ lenses
so I know I have a decent lens - can't afford pro lenses with the huge
max aperatures.

Also - muck up the image with a UV filter - huh? What - you lose what -
maybe 1/2 a stop - if you don't even know about the creative use of
filters - and I don't mean the cheater foilters - thwn I doubt you know
much at all - best not to comment.

Never experimented with vaseline on the lens? Never bought a cheap
used/damamged UV or skylight filter, smash it with a hammer and then
shoot with it - proabably not even aware of the compositions that would
lead to highly creative shots with those 2 suggestions - Like I said -
the rest of us are into creative photography - you keep shooting for
that newspaper shot!

Annika1980 wrote:
Jimbo wrote:

Annika1980 wrote:

Jimbo wrote:

if I don't want the skylight filter on for the shot
- I take it off, shoot, put it back on.

Isn't that the function of the lens cap?

Can't shoot with the lens cap on!

My statement involves the use of some kind of filter over the lens
being that replacing a $20-30 filter is cheaper than a $300-500 lens.


And my point is that when you're shooting you shouldn't have anything
on there.
Also, a $2 lens cap is cheaper than a $20-$30 filter.
Presumably, you paid big bucks for an expensive lens that you wish to
protect. If you're gonna muck up the image quality with a UV filter,
you've wasted your money.
It's like buying a beautiful new car and ruining the looks of it by
putting one of those bras on the front to keep the bugs off.


One of the few times Bret has something constructive to contribute.
UV filters absolutely *MUST* have a hood used with them to prevent
reflected light interfering with the front element's ability to gather
light as the designer intended and stop light being reflected around
between the filter and the front element... If you use one.

Next item is when to use a "Skylight", UV1 or UV2 filter - and it's not
all the time, either.

Ultra Violet light is strongest on an overcast day. Light is reflected
between cloud layers and for some reason I have no knowledge about,
intensifies the UV component of daylight. This is why you squint on
these days as the (natural) light increases. It is also why photos taken
on these days almost always have a "different" look to them.

A UV1 or UV2 filter may help on these occasions. Another situation is
with landscapes and haze although I have never found much value in a
filter under these conditions. Uncorrected flash (read that as older
flash guns) can also increase UVs. I have had success with UV1 filters
when used with flash. Particularly when the groom is wearing a suit with
synthetic blue material in it. Otherwise UV filters are more often than
not, detrimental to the image.

The almost endemic spread of the culture of "lens protection" carries
with it the suggestion a person subscribing to that cult has no interest
in looking after their gear anyway. A 0.7 mm thick piece of glass is not
going to save such a person from disaster, more likely contribute to it.
A more sensible thing to do would be; Buy a cheap filter of any type and
remove the glass, using only the holder to protect the thread of the lens.

Another reason for NOT using a UV filter is image degradation. Bret
touched on this subject but really, it needs to be made clear that a UV
filter is no different to any other filter in that it *WILL* change the
colour of an image. How much it changes and if the change is
beneficial depends on a wide range of environmental factors.

If you need to see how these lens filters affect colour, take a picture
of a white page with a UV filter held over only part of the paper. Then
use an image editing program to try and correct the colour balance.
Cheap polarizer filters will also change the colour of an image too.

--
From Douglas...
My photographic site: http://www.douglasjames.com.au
Canvas Archival and Metallic Prints: http://www.canvasphotos.com.au

"Michael Yates" wrote in message
...
I just picked up a Hoya 49mm circular polarizer. The question I pose to you
is this, I use Hoya Skylight 1B filters on my 55mm and 135mm lenses. I've
read that with wide angle lenses you shouldn't use additional filters with
the polarizer. But with the 55mm and upwards am I at risk of vignetting if
I use the skylight as well as the polarizer?

Firstly I put the polarizer right over the skylight, but then thought if I
put the skylight over the polarizer it would be good for protection
mainly, but also warming the image slightly since the polarizer loses a
stop or two..
Am I heading for bad news?


There is no reason to use a skylight filter and a polarizing filter at the
same time.
Jim