IR filters?

Donnie

Donnie

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Paul
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Just a quick one Im sure.
I've had a small converted lumix before that was converted for infrared but sold it and don't want to get another dedicated one. But what about a IR filter for front of lens? Specifically after a 62mm one for my olympus lens. Is there a big compromise?
 
It works but at a much longer exposure. Like many seconds.

The standard IR cut filters on a sensor literally stop infrared light (like they are designed to do)
 
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Ahhh yes, I knew that it would affect shutter speed but its been a while since I had the converted lumix. Biggest advantage of a converted sensor would be shutter speed would be normal for conditions. I knew there would be something. Cheers for the quick answer both.
 
As well as exposure time (which is the biggest problem) there can also be a problem with sensor noise and/or hot pixels. I sometimes have to devote a bit of time to the processing.

I do plenty of shots with an IR filter, but also have a converted camera. I like doing both, and find the long exposure times with the filter adds an aspect to the images, particularly with water and cloud movement. If fact I'm looking at an IR image I took with some sheep rendered ghostly that's hanging on the wall.
 
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