ND Filters

N

NavyDave

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Dave
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Hi everone

I was photographing today using an ND2, ND4 and ND8 all in different combinations, but having got home and looked at the photos I have a pink/redish tinge thru the pics.

Can anyone explain what I have done wrong and how I can fix it?

Thank you for the advice

Regards

Dave
 
I'm afraid that's what happens when you use cheap filters.. You may be able to negate some of the tinge by altering the white balance, but you will struggle to get it perfect.
Best to make a custom white balance in the camera whilst shooting with them, although even that may not completely solve the issue.
 
Hi Dave
If you mean a constant colour cast then I think it's quite common even in expensive filters. My B+W ND has a slight colour cast. If you mean a tinge as in a fault kind of way then, as Tom says, it's probably 'cos of a cheap filter.
JohnyT
 
Well....that does seem a very strong cast, personally haven't seen one so strong. Have you tried correcting it? Also, on my screen, looks slightly over-exposed. Maybe someone with that particular make can give a more informed reply.
JohnyT
 
Johnytuono said:
Well....that does seem a very strong cast, personally haven't seen one so strong. Have you tried correcting it? Also, on my screen, looks slightly over-exposed. Maybe someone with that particular make can give a more informed reply.
JohnyT
Click to expand...

I havent done anything to correct it (how do I do that on the Canon 600D)?, maybe I have over exposed it was a semi bright day today and the exposures were 10, 12, 15 and 6 secs respectivley.

New to ND Filters so im experimenting and any advice would be gratefully appreciated

thanks
 
Hi Dave
Correction needs to be done in software ie Photoshop, Lightroom etc. Would be interesting to know if others with the NEEWER ND have tha same cast. Personally I'd return the filter and mention the cast and try and get a more neutral one off them. As I say though I think 'some' ND's do have a 'slight' cast.
JohnyT
 
Thanks JohnyT,

I got them a few years back on Ebay (says it all eh?)

What brand would you recommend for ND filters and which "strength" ??

I have Elements 8 and CS6 so will have a wee play about (wish I knew how to correct in these complicated packages), also got photomatix so may have an HDR shot too.

Love the knowledge on the forum

thanks

D
 
Last edited:
TCR4x4 said:
I'm afraid that's what happens when you use cheap filters.. You may be able to negate some of the tinge by altering the white balance, but you will struggle to get it perfect.
Best to make a custom white balance in the camera whilst shooting with them, although even that may not completely solve the issue.
Click to expand...


TCR4x4 how do I adjust the WB in the camera mate?

cheers
 
Hi Dave
Strength of ND depends on quite a few factors ie current ambient light strength and also what effect you're trying to achieve. Which brand depends on what you want to pay. Some people have got great results from the cheaper (as in price and not necessarily quality) Halda filters. I have one from a firm called Marumi and the single coated ND from B+W (they also do multi-coated). Then there's the Lee filter system.......the list goes on lol. I'm sure there's a tutorial somewhere (youtube?) on removing colour casts and white balance.
JohnyT
 
Cheers JohnyT

Although I been photographing for 20+ years, never used ND in my life. Also whats the best exposures secs and settings for say waterfalls and traffic trails
 
I should imagine the multi-coated would be better. One interesting thing to note though is the light the filter blocks out might not be the exact f-stops it says. Mine for instance (10 stops ND) is actually 11 f-stops in reality. Worth checking.
JohnyT
 
Get yourself an app like 'LongTime' for iOS, which will tell you how long to set your shutter speed to with different filters etc. Also, like someone has mentioned above, your sky seems to be overexposed! I guess it's all trial and error until you get the technique down though - i'm not criticising. I have a Haida 10 stop filter I bought on eBay (brand new) for less than £30! It's superb, no colour cast at all. Did you shoot in RAW? If not, try that next time - it'll allow you to adjust the white balance later on. Mind you, the cast on that picture is quite extreme..
 
It really is an odd cast, with some strange responses in certain areas. Are you sure that one of your ND filters isn't actually an Infrared filter at some odd wavelength?
 
SimonH said:
It really is an odd cast, with some strange responses in certain areas. Are you sure that one of your ND filters isn't actually an Infrared filter at some odd wavelength?
Click to expand...

It's a hazard of cheaper filters that they affect IR transmission hence the uneven effect on your photos which is difficult to correct in post. Hitech has brought out their ProStop IRND range to combat this though I've not tried them.

I have no problems with IR on my Big Stopper, just a slightly cold tint which is easily solved.
 
ohms12 said:
Get yourself an app like 'LongTime' for iOS, which will tell you how long to set your shutter speed to with different filters etc. Also, like someone has mentioned above, your sky seems to be overexposed! I guess it's all trial and error until you get the technique down though - i'm not criticising. I have a Haida 10 stop filter I bought on eBay (brand new) for less than £30! It's superb, no colour cast at all. Did you shoot in RAW? If not, try that next time - it'll allow you to adjust the white balance later on. Mind you, the cast on that picture is quite extreme..
Click to expand...

Hi Ohms, how you doing?

Thanks for the info... I dont have an Iphone I use Android - any recommendations for this please? as longtime not on for android.

I think Im over exposed as sky is awful, trial and error, the fun of photgraphy. I dont think for one min your critizing and I dont see it that way mate :thumbs:

Haida - not heard of them, will have a look, cheers

I always shoot in RAW and then convert to JPEG

Like I said new to doing mannual photography, and its a lot harder then selecting the green square

Thank you :clap:

Dave
 
SimonH said:
It really is an odd cast, with some strange responses in certain areas. Are you sure that one of your ND filters isn't actually an Infrared filter at some odd wavelength?
Click to expand...

Hi Simon

the filter have the folloowing on their rings:

NEEWER ND8 58mm
NEEWER ND4 58mm
NEEWER ND2 58mm

They all look clear pieces of glass too with no tinge either :'(

Thanks

Dave
 
markmullen said:
It's a hazard of cheaper filters that they affect IR transmission hence the uneven effect on your photos which is difficult to correct in post. Hitech has brought out their ProStop IRND range to combat this though I've not tried them.

I have no problems with IR on my Big Stopper, just a slightly cold tint which is easily solved.
Click to expand...

I will have a look at this cheers Mark
 
NavyDave said:
Hi Ohms, how you doing?

Thanks for the info... I dont have an Iphone I use Android - any recommendations for this please? as longtime not on for android.

I think Im over exposed as sky is awful, trial and error, the fun of photgraphy. I dont think for one min your critizing and I dont see it that way mate :thumbs:

Haida - not heard of them, will have a look, cheers

I always shoot in RAW and then convert to JPEG

Like I said new to doing mannual photography, and its a lot harder then selecting the green square

Thank you :clap:

Dave
Click to expand...

There's a big thread over here (http://www.talkphotography.co.uk/forums/showthread.php?t=337439&highlight=haida+stop) on the Haida filters!

As for Android apps, there's loads! One called ND Calc seems to have good reviews - and it's free.

What size of filter are you using and what size is the lens? Maybe you should also look at that (you have a vignette) too.

With regards to the overexposed sky, it's really not too difficult to correct. Simply make sure your shot is correctly exposed before you put the filter on your lens. Take a snapshot, use the inbuilt light meter and maybe a quick look at the histogram before you take it. If the short test looks good, pop the details into the app and it'll give you the correct exposure time. Your cast issues I would imagine cannot be fixed so easily though.

Hope that helps :)
 
ohms12 said:
There's a big thread over here (http://www.talkphotography.co.uk/forums/showthread.php?t=337439&highlight=haida+stop) on the Haida filters!

As for Android apps, there's loads! One called ND Calc seems to have good reviews - and it's free.

What size of filter are you using and what size is the lens? Maybe you should also look at that (you have a vignette) too.

With regards to the overexposed sky, it's really not too difficult to correct. Simply make sure your shot is correctly exposed before you put the filter on your lens. Take a snapshot, use the inbuilt light meter and maybe a quick look at the histogram before you take it. If the short test looks good, pop the details into the app and it'll give you the correct exposure time. Your cast issues I would imagine cannot be fixed so easily though.

Hope that helps :)
Click to expand...

Sorry for delay...
The filter is 58mm and my lenses vary from 28 - 300mm

thank you for the app, appreciate it, will install it now :thumbs:
 
Months ago I got myself one of those relatively cheap adjustable ND filters (and I think it's a Neewer one), I had to dismantle it to clean little Chinese fingerprints from the inner glass and there's a minor ripple on the surface (which doesn't seem to show in the images), but the results haven't actually been all that bad, certainly no redness like your seeing.

I will of course upgrade to some half decent filters at some point, but I really needed a starting point to figure out where best to spend my money.
 
Like others say , you get what you pay for.

I've been through a complete set of cokins and Hi-Techs and have ended up with Lee's.


Cokin - Lots of nasty colour casts
Hi-Techs - Not quite as much but still nasty
Lee's - Practically none.
 
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