Showing the Ca K filter module with the IDAS type IV UIBAR filter as the energy rejection filter photo

Andy Dodson | all galleries >> Solar Photography >> Evoloution of my Ca K filter > Showing the Ca K filter module with the IDAS type IV UIBAR filter as the energy rejection filter


08-JAN-2013

The image shows the Ca K filter module with the IDAS type IV UIBAR filter as the energy rejection filter.

Canon EOS 5D
1/125s f/6.3 at 50.0mm iso200 hide exif

other sizes: small medium large original auto

If you want a copy of this photo please quote the IMG# (if possible) and e-mail andydods2001@gmail.com

Andy Dodson		26-Jan-2013 05:00
It would be possible to use the Baader CCD Blue filter as an ERF, but it's cutoff is very close to the 393nm wavelength, but more importantly I've only seen it sold as part of the RGB set and not sold individually, and I want to minimise the cost.

Andy Dodson		22-Jan-2013 22:33
The internal threading has been blackened since this photo was taken

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