infrared filter

This is what I was aiming at:
http://www.pbase.com/dlarson2/ir_work_flow
That does not happen with my 'magenta' images and I cannot get the unprocessed image anywhere near his.
However got some nice b&w ones now, just would like to get the false colour images posted here and the above link.

Andrew
 
this is why i set the white balance on the camera. if i shoot in RAW then i just drop into photoshop and just alter the levels slightly, or if im shooting in RAW then i use Bibble to convert it to a tiff and work from there.

For some reason only bibble preserves the cameras white balance setting when using RAW, adobe software looses it and makes it all red
 
Tried jpeg also.
This is what I did:
Left WB as auto and attached ir filter.
Took photo through filter of green grass.
Now set wb to custom and choose the photo of the grass as the balance point.
Now, when I take a photo it comes out mono, which seems to be completey against what an unprocessed image should be.
Will try again and double check what I do....

Andrew
 
you need to be shooting bright sunlight, most of my shots are middle of the day - bright sunshine kinda weather
 
has anyone got any decent tuts as to how you do the false colors on these :confused: have a IR filter coming next week :p
 
Gave up on the false colour route for now so tried converting a few to b&w.
Comments?

ir1.jpg


ir2.jpg
 
i don't think you need false colours, like i've said - my shots are pretty much un-touched (only minor contrast / saturation adjustments)
 
Great shots, I like infrared photo's, they look almost like they are from another planet...

Is there anyway of getting them without some sort of SLR?
 
Yes, you can do it with any reasonable compact from what I have now found out.
I think the main thing is the sensitivity of the ccd to ir and also the ability to do manual and long exposures.
I believe some compacts are actually better than slrs!
 
stick a filter on another camera?

r72 filter held in front of an F31fd;

f31fd_ir.jpg


no filter;

f31fd_noir.jpg


not just SLR's that are sensitive to IR
 
main.php


main.php


CastleIR1000.jpg


I use a Nikon D70 for IR. My process is: Set WB to "PRE" and choose "Measure" from the menu, then with filter attached take a photo of grass (normally 3 seconds on a moderate day) which is as uniform as I can find (least shadows etc). If the image is poorly exposed I try again until I get a measured WB that looks good on my screen.

Then I only shoot in JPEG, RAW always gets ballsed up afterwards, it doesn't retain the measured WB :( Not worth the hassle imo.

I then take bracketed shots, in case I need to HDR. I find my blown out areas are extremely blue after processing, looks terrible. Bracketing is therefore my friend.

In photoshop I use an action that essentially swaps the blue and red channels around. I downloaded it, its called "Brads IR Action". Afterwards some lowering of saturation is sometimes required for certain channels if my WB was a little off (the white will have a tint, often blue, which I don't like).
I then do my usual editing :)

Hope that helps.
 
Helium_Junkie said:
Then I only shoot in JPEG, RAW always gets ballsed up afterwards, it doesn't retain the measured WB Not worth the hassle imo.
Click to expand...

use this to convert to TIFF then work with the TIFF file in PS.

edit;

i set the white balance in the same way.

here is a shot in JPEG straight off the camera; (f22, 4 seconds, iso.. erm.. i dunno and can't see it listed on the exif for some reason)

DSC_0012.JPG


and like i say, minor level adjustments;

DSC_0012_levjpg.jpg


none of this channel swapping.. i really don't think it needs it!
 
Last edited:
GeX said:
use this to convert to TIFF then work with the TIFF file in PS.
Click to expand...

Or save any unnecessary hassle and shoot jpg :)



GeX said:
none of this channel swapping.. i really don't think it needs it!
Click to expand...

I wanted my skies to be true colour, hence channel swapping. Brown skies aren't my thing. I also think it makes the white cleaner.
But to each his own, make sure you try different methods to get what works for you :)
 
The fun of infrared is to work on your own style. I have mine (as pictured above)
I usually channel swap but it depends on the scene. I want my skies to be real but I am not a massive fan of how the Canons handle the color of the foilage so I have pure white instead of red (which is what true infrared is)
 
I've come to the connclusion that the 400D is really bad for IR work. Need ridiculus exposures in comparison to some of these. I might look at getting a second hand older canon slr and modding it to do just IR.
 
Fstop11 said:
Its a bright day today. Go do some infrared shots at F8 ISO200-400 and note what the exposure times are.
If they are over 20 seconds then yes the camera isn't great for infrared.

an infrared only camera has its advantages but also disadvantages.
Click to expand...

My D80 required about 40second exposure at F8 iso100 to get an image. Plus the 18-70 AF-S lens isnt supposed to be very good for IR, causes hot-spots(?).

Will still have a play around with this, but it means lugging the tripod every where which is a pain at the moment and not just cos its awkward.

If this proves a waste of time that i think it will, time to start playing with other things. Need to get motivated again, my mojo got up and left the day the Neurologist said im looking at MS.

Do love the look of IR, its the surreal effect you get, to me the pics have a very calming look to them. Could do with some on the office wall, help me stay calm and stress free.
 
You must log in or register to reply here.
Back
Top Bottom