File :-(, x, )
IR-Filters Anonymous
sup /p/

i saw some ir-filters (that block all but ir light) and thought that i could get one (if they aren't too expensive).
the problem is that common digital cameras have an ir-filter (that filters ir-light), why the image would be black if i attacked the ir-filter (thats blocks visible light..).

so, what is the point in ir-filters (that block visible light) for cameras anyway? are they only for the night mode or something?


pic somewhat related, its taken with my old cam that i modded (took out its own ir-filter and put in a filter that blocks all but ir-light)
thats how 5euro look like with ir-light =D
>> Anonymous !QgACNkSwFA
>>189871
The point is for cameras that do not have IR filters, either film, or certain versions of digital cameras.
ask the googles for "infrared camera digital" and you will see that there are IR capable digital cameras.
>> Anonymous
IR cut filters in a camera dont completely cut out all IR light. some are better at blocking out IR light than others, but some will still make it through. given a long enough exposure, any camera would work.
>> Depressed Cheesecake !wFh1Fw9wBU
The IR filter in the camera doesn't block all IR light, so you can use a filter, but you just need long exposures (~10 seconds) and you can't see anything.
>> Depressed Cheesecake !wFh1Fw9wBU
>>190021
>>190020
Hivemind
>> Anonymous
I read somewhere that evenly exposed and then developed film makes for an affordable IR-pass filter. Never tried it, since I have access to enough filters at work.
Also, be carful with documenting security features of bills. In most countries it is a criminal offense to create pictures of money with more than 100 dpi or so.
>> NatureGuy !se3A3TwzdY
     File :-(, x)
don't get the cokin creative P series IR filter
scratches at the drop of a hat
useless in direct sunlight and mostly useless in the shade

too lazy to dink around with this into the magical color IR effect, but you can see one of the main issues

Camera-Specific Properties:Equipment MakeCanonCamera ModelCanon EOS 30DCamera SoftwareAdobe Photoshop CS2 MacintoshPhotographerunknownMaximum Lens Aperturef/3.5Image-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution300 dpiVertical Resolution300 dpiImage Created2008:05:26 15:30:53Exposure Time20 secF-Numberf/9.0Exposure ProgramManualISO Speed Rating100Lens Aperturef/9.0Exposure Bias0 EVMetering ModePatternFlashNo Flash, CompulsoryFocal Length18.00 mmColor Space InformationsRGBImage Width983Image Height655RenderingNormalExposure ModeManualWhite BalanceAutoScene Capture TypeStandard
>> Vincent !!8LCSE0Zp1mL
     File :-(, x)
>>190111
IF thats not RAW you forgot to set the custom WB

Pic related, (Blue and red channels swapped, not much editing other than that (contrast is all))

Camera-Specific Properties:Equipment MakeNIKON CORPORATIONCamera ModelNIKON D70Camera SoftwareAdobe Photoshop CS3 WindowsMaximum Lens Aperturef/2.8Sensing MethodOne-Chip Color AreaColor Filter Array Pattern822Focal Length (35mm Equiv)22 mmImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution300 dpiVertical Resolution300 dpiImage Created2008:05:25 20:58:57Exposure Time1/320 secF-Numberf/4.5Exposure ProgramAperture PriorityExposure Bias1.3 EVMetering ModePatternLight SourceUnknownFlashNo FlashFocal Length15.00 mmColor Space InformationsRGBImage Width1504Image Height1000RenderingNormalExposure ModeAutoWhite BalanceManualScene Capture TypeStandardGain ControlNoneContrastNormalSaturationNormalSharpnessNormalSubject Distance RangeUnknown
>> Anonymous
did u use an ir-filter?
>> Anonymous
>>190107
Unexposed but processed slide film is very effective.
>> Anonymous
>>190984
i just used the end of the film, i think thats a part that is unexposed but processed. as you already said, it works quite good. I use two layers though.

>>190120
did you get rid of the ir-filter inside the cam or how did you get this shot with 1/320?
>> Anonymous
posting from my phone, but ya its a modified D70, so it only takes IR pictures.
i got a good deal used on it, so i bought one
>> Anonymous
>>190120
That's not snow, in case somebody doesn't know. That's what chlorophyll looks like in IR.
>> Anonymous
>>191466
yeah, because plants (also leaves and so on..) reflect ir-light, thats why they appear white. i love that effect. it is actually the second best effect of ir-pictures. (the best one is sometimes being able to look through some certain things :] )

>>191261
ok thanks for the reply