GND Filter Advice

Supercell

I'm looking to get a GND Filter that I can stick in front of the glass my weather webcam views through.

As you can see, the sky is totally washed out :-



For a weathercam especially this is a bad thing - that image should show some blue sky with some white high cloud but its just featureless currently.
If I tilt it upwards, the sky details are fine but the greenery almost looks black and featureless

I need something that about 10cm x 10cm approximately (the cam is about 4cm from the glass hence need such a big filter) I think.
Can I buy these here in Ireland at this kind of size, and if so where ?
Or is there something else that might do the trick also?

Thanks.

digitalbeginner

Cokin do filters that size, and bigger: http://www.cokin.com/ico15/ico15-haut.html?.

I get mine from John Gunn Cameras on Wexford St. (though they're closed for hols at the moment),

Dave

Valentia

Dave, do you know if John does other brands? The Cokin ones have a reputation for having a colour cast.

digitalbeginner

I use mine for black and white landscapes so the colour cast is not an issue for me. I was under the impression that they also did Lee Filters, but I couldn't swear on that,

Dave

Fajitas!

Actually, Danny, for what it's worth, I went about trying to use Rymus' ND filter and GND filter the other day on the 24-70, and found there was a hell of a lot of vignetting... If you were going for the filters for your 24-105, I'd advise you give that a check first!

CONMIKE12

Gunns have a VERY limited range of GND filters , they don't do lee filters for sure because i checked. I got lee filters from Robertwhite.co.uk and the service and price was very good. I have stacked 2 filters on my Canon 16-35mm @ 16mm with no vignetting whatsoever, so you would have no problem with vignetting on the 24-105.You just use the wide angle adapter.I've yet to try it with the third slot holding a filter. The Lee system is expensive , but they are very good. There is also a system called Hi-tech which have gotten very good reviews, comparing favourably with the Lee system, and they are a fair bit cheaper.

Valentia

Thanks lads. I'll be using them mostly on the 17-40 I'd say. Must get the finger out and order them before the hols. I'll have a look at the HiTech. Lee is damned expensive and I probably wont be using them a lot.

Supercell

Thanks for the replies all.
I popped into Gunns this morning and got one, as you can see my cam got clouds now!!

digitalbeginner

Longfield wrote:

Thanks for the replies all.
I popped into Gunns this morning and got one, as you can see my cam got clouds now!!

Them clouds look familiar, I think they just passed over my house in Lucan:)

Glad it's worked out for you,

Dave