Wayne Harridge wrote:
>>To digress a little ...
>>
>>Today I acquired 2 new to me Hoya filters
>>
>>- Infrared (RM90) - great for looking at the sun. What else
>>is it good for?
>
>
> Wouldn't recommend it for looking at the sun, the fact that it is relatively
> transparent to IR and opaque to visible light means that it can do
> significant damage to your retina before you realise it.
>
> Use it for IR photography !
> Kodak HIE is probably the best for the 900+ nm that it transmits.
I shouldn't use it anyway, the surface needs polishing, 'cos of way to many
scratches, etc
Before anyone asks, it came free with a non-Oly camera I bought,
to help feed my OM almost-addiction.
>
>>- Spectralstar Pulsator - produces rainbow
>
>
> Bin it ?
I'll try it first, as it could produce some interesting "art" *fingerscrossed*
David
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