M42 from 04th Feb

  • TrevorDurity
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  • Red Giant
  • Red Giant
17 years 5 months ago #40734 by TrevorDurity
Replied by TrevorDurity on topic Re: M42 from 04th Feb

Is this IDAS PS1 similar to the one used with cameras like the 300D

Sorry Dave, just saw your question.
I believe it's the exact same filter, just an earlier version (P1 rather than P2 - don't know the difference). For the Canon it's the filter that goes between the bayonet and the lens in some kind of custom holder.

It's frequency curve is here:



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