The Dark Tower through Bert's lens in Ha

[tornado33]

Finally got around to processing this from 2 nights back.
4x10 mins ISO 400, Bert's 300mm f2.8 lens, modded 350D, hand guided as usual.
Processed in Iris, only red channel used,then Photoshop and Noiseware.
Scott

[strongmanmike (Michael)]

Great vista that Scott

Anywhere to see a higher res version, the jpeg compression is killing it

Mike

[avandonk]

All your HA shots are really great. I must get myself a HA filter to use when the Moon is up. That is the only reason I can really justify getting one. I just realized that even though you are recording effectively at 'one' wavelength with a HA filter (no CA) the quality of the lens still matters. Any astigmatism would still show up.

Bert

[tornado33]

Yep youre right the Jpeg compression is bad, I will see about the IIS FTP service
Scott

[tornado33]

Thanks to the IIS FTP service, heres the link to a bigger less compressed file
http://www.iceinspace.com.au/uploads...a_filtered.jpg
Scott