Kodak HIE & Ilford SFX P filter

[Mike Kennedy]

I just received some infared film from a fellow APEhugger and can't wait to shoot some.I have read the various posts but havn't found one that talks about the almost opaque Ilford SFX P filter.
Suggestions would be greatly appreciated.

Thank You

 

[colrehogan]

I think a lot of people use a red 25 filter with the Kodak IR film.

 

[Bob F.]

I've not used HIE with the SFX filter but the Ilford filter is equivalent to a Wratten 89b. You should be able to find info on using an 89b with HIE.

Good luck, Bob.

 

[Mike Kennedy]

Thanks Bob.

JMK

 

[Stephen Frizza]

if anyone is going to shoot on Kodak HIE I seriously suggest an R72 filter they are a deep red filter which is much denser than the R25. the advantage of this filter is that it predominantly lets light waves above 720nm through. the result is a very infra red look, the disadvantage is you must either focus mathematically before shooting or focus then apply the filter to the lens as the human eye will can not look through it in normal lighting conditions.

 

[thefizz]

Ilford's SFX filter is similar to the Heliopan RG695 and Hoya R72. It will work fine with HIE and give a good IR effect.

Peter

 

[DaveOttawa]

As others have stated you do not need anything "redder" than a 25 red to get a strong IR effect with HIE (an orange can work well in some lighting conditions) and with an SLR the visual opacity of the SFX filter is inconvenient, the SFX filter will definitely work though.
If you are new to HIE I'd suggest bracketing your exposures on the first roll to get an idea of the type of negatives you like with this material.
Enjoy the film and post when you've shot some!

I just received some infared film from a fellow APEhugger and can't wait to shoot some.I have read the various posts but havn't found one that talks about the almost opaque Ilford SFX P filter.
Suggestions would be greatly appreciated.

Thank You

 

[colrehogan]

Here is a site that gives some tips on using HIE without doing so much bracketing. http://mysite.wanadoo-members.co.uk/invisiblelight/index.html

 

[Mike Kennedy]

Thanks All !!!!!!!!
Some great advice.What about taping a piece of filter between the film rails,I've read about this before.Lets you focus without the hindrance of an opaque filter.If I did that what would I set my ISO to? The Ilford filter is marked B98.

Thanks

 

[DaveOttawa]

Have you tried looking through the camera with the SFX filter in place? In bright light, especially with a fast lens, you will actually see something and it will look infra red, i.e. Wood effect of light foliage will be visible to the eye (I've tried it). Do you have a RF camera?
I haven't tried taping a filter to the film gate but it seems as if it should work if it can actually be doen without interfering with film location or shutter operation.
Re ISO only you can decide this because only you know what sort of negs you want (plus your camera may respond differently, we don't know what dev you're using etc etc, i.e. all the normal factors controlling film exposure and evelopment apply to HIE), I'd suggest bracketing the first roll and noting your exposures. A starting point would be the range I use for incident light metering with HIE: ISO 50 or 100. NOTE: this is for the film behind the lens & shutter set up only.

Thanks All !!!!!!!!
Some great advice.What about taping a piece of filter between the film rails,I've read about this before.Lets you focus without the hindrance of an opaque filter.If I did that what would I set my ISO to? The Ilford filter is marked B98.

Thanks

 

[rusty71]

I have sucessfully used a wratten gelatin filter taped behind the shutter curtain on Olympus OM-1 and Nikon FM2. It was pioneered years ago on the infrared photo mailing list, run by William Jan Markerink out of the Netherlands. Hope I spelled that correctly! The list is still around, and a great resource for all things IR and UV photo related. It's fairly easy to mount the filter between the guide rails. Just trim it to size and use a thin Mylar tape such as used for slide masking to secure it on the left and right sides. Then the IR gets filtered in and you can compose normally!

I find that rating Kodak HIE at around ISO 200 using this method gives good exposures. If using a filter on the lens, set the ISO at 400. IR light does vary, but the Kodak is very reliable. Have fun!

Thanks All !!!!!!!!
Some great advice.What about taping a piece of filter between the film rails,I've read about this before.Lets you focus without the hindrance of an opaque filter.If I did that what would I set my ISO to? The Ilford filter is marked B98.

Thanks