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Infrared Anonymous
I am waiting for my Canon EOS 350D to arrive and I'd like to start out with infrared photography as shown. What filtre should I look for?
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Camera-Specific Properties:Equipment MakePENTAX CorporationCamera ModelPENTAX K100DCamera SoftwarePENTAX PHOTO Laboratory Ver. 3.00Sensing MethodOne-Chip Color AreaFocal Length (35mm Equiv)27 mmImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution72 dpiVertical Resolution72 dpiImage Created2007:04:19 19:31:12Exposure Time1/8 secF-Numberf/5.6Exposure ProgramAperture PriorityISO Speed Rating200Exposure Bias1/2 EVMetering ModeCenter Weighted AverageFlashNo Flash, CompulsoryFocal Length18.00 mmColor Space InformationsRGBImage Width3008Image Height2008RenderingNormalExposure ModeManualWhite BalanceManualScene Capture TypeStandardContrastHardSaturationNormalSharpnessHardSubject Distance RangeClose View
>> Anonymous
an infrared filter
>> Anonymous
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Yeah, but I've seen quite a few ones with different numbers and such on ebay. Any further help?

Camera-Specific Properties:Camera SoftwareAdobe Photoshop CS WindowsImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution72 dpiVertical Resolution72 dpiImage Created2005:02:18 17:23:27Color Space InformationUncalibratedImage Width438Image Height400
>> heavyweather !4AIf7oXcbA
Hoya R72
>> Anonymous
>>58192
If you're just getting into it, get a Hoya R72 filter. They're available for pretty cheap and sharper-cut filters (the hoya filter passes deep red plus IR) that pass light deeper into the IR spectrum get a lot more expensive.

Also, learn to use curves and other photoshop techniques, as that is how IR photos like the OP picture are made. You won't just get that picture out of your camera without extensive post-processing.
>> ac !!VPzQAxYPAMA
>>58190
Keep in mind that a stock 350D won't give you very good IR results. Thanks to the nature of digital sensors, they all have a filter over them to cut out infrared light. What an "IR filter" like the Hoya R72 does is cut out *visible* light.

So, filter to filter IR + filter to filter visible = No damn light at all getting to the sensor.

Granted, the IR filters over digital sensors aren't perfect, and apparently the visible-light filters like the R72 are better (so despite filtering all wavelengths, some IR will get through), but it's a wee bare trickle. Expect to have some loooong exposures, even in full daylight.

Alternately, you can pay a couple hundred bucks and have your 350D modified for IR photography (and thereby made a lot less useful for visible light photography)
>> Anonymous
OP here, thank you. Now, I'm also new to SLR photography, so I'm confused by the mm-Stuff. The filtres say 49mm, 72mm and so on. WHat do I need?
>> Anonymous
Does anyone know if that camera even "sees" infrared light? I heard wbout trying with a TV remote, but I don't have the camera yet.
>> Anonymous
>>58195
Wrong. With the Olympus C2020z I have, pictures DO come out almost exactly like this. Colours are different, but you only have to change channels. Nothing big.

And yes, Hoya R72. NO OTHER PLS. Higher and sharpercut filters are indeed more expensive, but they don't do anything for your digicam. They only make it harder in the end.
>> ac !!VPzQAxYPAMA
>>58199
There's two different 'mm' dimensions involved. There's the focal length (e.g., the kit lens for the 350D is an 18-55mm lens, which means its focal length ranges from 18mm to 55mm depending on how it's zoomed. The 18 end is wide angle, the 55mm end is telephoto, and the "normal" range is somewhere around 28-35mm ("normal" meaning that the lens sees about the same scene that your eye sees).

However, all of that is worthless to you in choosing a filter. What you want is the *filter diameter*. I.e., the diameter of the opening onto which you screw filters. Most low-end Canon lenses use a 52mm filter thread, and most high-end Canon lenses use a 72mm filter thread. If you're only getting the 18-55mm kit lens with your camera, you've got one of Canon's oddballs--it uses a 58mm filter thread.
>> Anonymous
I've got some alright results with a Sony A100 and a Kood R72. No results as good as the op's image, been doing it handheld.
>> Anonymous
I just had my D50 modified so it can take infrared without needing long exposures. I'm pretty sure there are charts out there which say which cameras are better for infrared, but you can probably get your camera modified for infrared to easy results.
>> Anonymous
>>58200
most camera's can
>>>>>58196good post

the remote thing is you get a tv remote that use infra red and take a picture of the bulb while holding down a button. If it comes up white congratulations your senor is a piece of shit but good for infra-red photography

also OP if you don't have a tripod yet dont bother buying the filter. YOU MUST have a tripod. Shortest exposure time I've managed to get on my 30D is 1/3 in full sunlight on a snowy mountain. Most exposure times seem to sit around 2 seconds but ocasionally drop down to 1 second if you have the light.

You could go out and buy B+W infra-red film, but god damn focusing that shit is hard and finding a place to develop it that doesnt use infra-red censors is harder. Of course you could use your d-76 and do it yourself, but d-76 makes most infra-red films more grainy than the best developers and i seriously doubt you have film developing equipment >_>
>> Anonymous
>>58340
You're wrong too. Not all camera's can do IR, and not all camera's need a tripod for IR photography.
Also, the fact the bulb is white says nothing about the sensor. ALL sensors are HIGHLY IR sensitive. Therefor all camera's have an IR blocker in front of the sensor.
>> Anonymous
All hugely informative stuff posted here but before you buy, make sure your lens is up to the job: http://hoursofdarkness.com/Forum/index.php?PHPSESSID=ca8bef76ca3d0c7b8fc343cfbb6a4835&topic=131.
new
>> Anonymous
>>58341
>>>You're wrong too. Not all camera's can do IR
I didn't say they all can
>>>and not all camera's need a tripod for IR photography.
Canon slrs have a decent IR block on their sensors, thus he will need a tripod
>>>Also, the fact the bulb is white says nothing about the sensor. ALL sensors are HIGHLY IR sensitive. Therefor all camera's have an IR blocker in front of the sensor.
you're testing your camera's sensitivity, not the the actual sensor. Further what exactly is the point of what you're saying right here? It's not like he can pop it on and off.

god stop being such a nub and actually read the posts before spewing idiocy into the forum
>> Jeremo !iKGMr61IHM
There was a really good guide on how to conert your old P&S into an inferred camera with the replacement of a little piece of plastic... i honeslty can't rememebr where it was... cause i wanna take apart my old cybershots and do them that way.