question: B+W polarizer + ND filter

[shockadelica-]

i want to purchase a B+W polariser, this is its description:

77mm Circular Polarizer (MRC) Multi-Resistant Coating Glass Filter Slim

the web site states that this filter has no front thread because its a slim filter.
now, i also want to buy a Graduated Neutral Density filter
though i read that if your using it on a wide lens you should buy a slim to prevent (vignetting?) or however its said/spelt

because this has no front thread does this mean i cant use it with another filter? or can i screw a graduated ND filter 1st then the polariser on top?

im pretty confused about the whole thing. i want to have the option
of using both filters for the same shot.

thankyou for taking the time to help me

here is the link to the polariser:
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=133003&is=REG&addedTroughType=categoryNavigation

this is the link to all the B+W 77mm polarisers:
http://www.bhphotovideo.com/bnh/controller/home?A=search&Q=&b=109&a=27_307&a=0&mnp=0.0&mxp=0.0&shs=&ci=115&ac=&Submit.x=11&Submit.y=11

and this is the link to all the B+W 77mm Graduated Neutral Density filters:
http://www.bhphotovideo.com/bnh/controller/home?A=search&Q=&b=109&a=27_307&a=33_180&mnp=0.0&mxp=0.0&shs=&ci=116&ac=&Submit.x=12&Submit.y=8

[birddog114]

You can't mount an additional filter with slim line filter no front thread, even you can't put the lens cap on it also, and its design as it's.
Why do you want to stack the ND and CPL on a WA lens? Vignetting is 100%.

[losfp]

I have the B+W slim CPL - though not the MRC version. It has to front thread, so you can't clip a normal lens cap on it, or screw any threads onto the front of it.

However, you CAN screw it onto another filter. In fact, I did this on the weekend. I had a Neutral Density filter, then screwed the CPL over the top.

Mind you, if you double up on the filters on an ultra-wide lens, you'll get wicked vignetting anyway, despite the slim CPL

[gooseberry]

I'd recommend the 77mm Nikon CPL II. It's slim, but allows you to put a lens cap on the front.

[phillipb]

Obviously, if the thin bit of thread in the front of a normal filter is going to cause vignetting, then the thickness of an extra filter in front of the lens is really going to affect the result.
If you must have both filters on at the same time, then the only probable solution may be to use a step up ring and buy larger diameter filters.

[gstark]

While you could probably screw this filter into another one, I'd be wondering about the use of these two filters together. Why would you be wanting to do this?

And yes, expect some vignetting.

[mudder]

While you could probably screw this filter into another one, I'd be wondering about the use of these two filters together. Why would you be wanting to do this?

I've stacked a CPL over an ND8 on the kit lens for some waterfall stuff, was great for the fairy floss effect but as you warned...

... And yes, expect some vignetting.

At the wide end, ooh yep...

[shockadelica-]

ok so i guess its not a good idea. thankyou

i wanted to be able to use a little bit of a longer exposure time to smooth out water and i thought that a graduated ND filter will allow me to do this. i dont know much about equipment but i thought it seemed like a good idea

[mudder]

G'day,

Screwing an NDx on the end of your lens is a fine way to slow the shutter speed/increase exposure times nothing wrong with that at all, it's just that if you place one filter over another then you may get vignetting at the extreme wide end only of your lens, that's all, zoom in a few mm and the vignetting will probably be gone (was for me by just zooming in about 3mm I think)... Using a filter to achieve that sort of effect is standard, no probs...

For blurring the water movement, ND's or Circ Pol's are just the the trick and do that job well but have a slightly different effect, the ND will simply reduce the amount of available light coming in, whereas the polariser does just that, it polarises the light and results in increased contrast and color sat etc... Reduces reflections on water/glass so you can see through the water/glass more etc...

[ajax]

Hi,

I have the b+w mrc thin and it has no front threads. As said above usual clip-on lens cap wont go on, however b=w supplied a push on cap which can be irritating at times as it becomes loose. I did not experience vignetting with this filter on. Also this filter gets rid of about one to one and third stop.

my 2c

[birddog114]

Hi,

I have the b+w mrc thin and it has no front threads. As said above usual clip-on lens cap wont go on, however b=w supplied a push on cap which can be irritating at times as it becomes loose. I did not experience vignetting with this filter on. Also this filter gets rid of about one to one and third stop.

my 2c

ajax,
The thin filter which you have, won't create any vignetting on WA at wide open.
We're talking about stacking it on another filter.
You can get B+W with both side threaded slim 3mm.

[sheepie]

How about holding a Resin filter (eg: Cokin, etc.) in front of the CP? I have used this technique reasonably successfully without vignetting. You have to have a steady hand though, and a tripod is a near necessity if you're going down this track!

[shockadelica-]

thanks for the clarification guys.
sheepie i thought the same thing
good to hear that it can work!

last night i was browsing the various cokin filters
though im not too sure if i should use a $30 cokin filter on top
of an expensive polariser. (might look at some other brands)

mudder, thanks for letting me know
if i zoom in a few mm i can avoid the vignetting

quick question:
with the b+w filters some are described with the word 'Kaesemann'
what does this mean?

[moggy]

And as Gooseberry has already stated, the Nikon 77mm CPL is thin AND has a thread on the front that the normal lens cap fits.

Bob.

.