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.
I had to reduce the file size a lot so I could attach it (even 700x500 pixels was too large for the JPG). The original is much larger. Zipping the file didnt seem to compress it much.
Any helpful info on how to get around the problem and I'll give it another go.
If you reduce the file size to around 800px wide, it should be able to get under the 150k filesize limit. Using photoshop or irfanview, you can set the "quality" or "compression" of the jpeg, which will let you reduce quality slightly to get it under the 150k limit.
I look forward to seeing the bigger version, it looks great so far!
nice image - btw if you have widows XP then get the windows image resizer tool from them for free, its works brilliantly. Just right click on a image file and select an image size - that’s it.
Lovely David, thats really brought out the detail, very nice.
Thanks Houghy for the heads up about the image resizer tool for XP thats going to be a very handy tool for me as well.
