[LRflex] Re: Comparison of M8 Photos in Infra-Red.

On 21.11.2006, at 18:22, David Young wrote:

>
> Colin Exclaimed...
>
>> Ah, OK. Must have been thinking of a UV filter, which should filter
>> out UV.  On the hand an orange filter lets through orange...
>
> and the IR filter lets the IR through.   That's why the b&w photos
> shot in IR (on any camera) have such dramatic skies.  Just as an
> orange filter passes orange, but cuts the blue, rendering the sky
> much darker, a red filter passes the red, but cuts even more of the
> blue, rendering the sky darker still!

Well, if they're suggesting putting an IR filter on the front of the  
lens to solve the purple black plastic bag problem - I hope it's an  
IR-blocking IR filter ;-)

colin
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