Questions on different filter.

[voldisinarta]

Hi all,

I am interested to step in to the wonderful world of IR photography. However, I need some info where I can't really get on the internet. I'm planning to convert a D70 for this purpose, but I need more info on the filters, and its effect for color IR photography.

I found a lot of info about comparison of filters for black and white ir photography, but none on the color comparison. even worst I found some conflicting info on the internet.

My questions are:

1. If I want an IR result with slight color out of the camera (with white balance adjusted), which filter should I use: The Wratten 87C, 87, or 88A? I don't want to get a crazy result like the so-called Goldie IR.

Some website says that using 87 I will get a totally bw picture, and some website says that 87 may still give me a little bit of color, for example dark brown sky.

2. Where can I get the false color picture result comparison between Wratten 87c, 87, 88A, 88B straight from the camera picture (i.e without editing)?

Thanks guys, I hope somebody can give me info.

V.

[night86mare]

if you want a bit of color, r72 gives very good results in my opinion

i haven't seen any wratten results, sorry

but looking at the numbers, i suspect all of those will not give much color, they are going to cut off too much light

[rizraz]

Hoya RM72 do give a bit of colour. Wratten 89B can be some what similar to the Hoya filter

Wratten 87 C will give you a b&w result as the cutoff will be approx 820nm. The others stated are in between 720nm and 820nm....... not sure on their result.

Goldie, fyi I guess the cut off is somewhere around 600-650nm......

[sweeper]

on the Wratten 87C, 87, or 88A

I have only seen these used on film SLR camera,
suspect the result is not so good on DSLR, or it's more difficult to use
e.g. cut off too much light, need very long exposure .

as mentioned above , you can try R72 or Harlim v3, if you are look for more "normal" IR effect

[voldisinarta]

Thanks guys for your informations, I really appreciate that although I still can't get direct comparison between the filters...

My choice is actually either Wratten 88A or 87... If not available than the last choice is R72 / 89B.

Another question... Harlim put versions for his different filters, Dibyo put names... Does anybody know what filter behind that names / version ? I am sure they didn't make their own filters

V.