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Eta carina through a Vixen 140NA (+UCHS filter)
Hi All,
At Ilford I experimented with "Scratchy" and "Itchy" photographing with a vixen achromat with a UHCS filter. The filter seems to cut out pretty well below 450nm.
Attached is the results. Fuji S2 ISO1600 4min x 2 stacked and a histogram stretch (no other processing).
The filter seems to pick up the red really well and there is a very red star to the right of the field (wonder if it might be a carbon star).
Worth experimenting some more the UHCS filter. Without the filter there is certainly a prominent blue halo.
Hope Ive attached the file correctly!
Cheers.
David
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