Trawling for a prawn under moonlight ED80.

[tilbrook@rbe.ne (Justin Tilbrook)]

Hi,
This is the first time I've used an light pollution filter with my imaging . This is mainly for moonlight imaging and it seems to work quite well.
IC 4628 is a good challenge for an ED80 under moonlight.
I thought it may a problem processing out the green /blue background., and after several attempts in photoshop I stumbled across an easy fix.
Before I did any levels or curves I hit the auto colour button and it balanced quite well.
I ran out of time to do a direct comparison without the filter, the fog rolled in. I intend to do so when the monn phase is the same.

Equipment.

ED 80, orion field flattener, astronomic cls light pollution filter.

HEQ pro 5 mount. Orion mini guider.

Unmodded canon 1100D,

11 x 8 minute subs, ISO 800, darks and flat frames applied.

Median stack in DSS, processed in PS7.

Cheers,

Justin.

[Astroman (Andrew Wall)]

not too bad there Justin, looks good. Can see the effect of the LP filter on the brighter stars. Still a good result though.

[tilbrook@rbe.ne (Justin Tilbrook)]

Originally Posted by Astroman

not too bad there Justin, looks good. Can see the effect of the LP filter on the brighter stars. Still a good result though.

Thanks Andrew!

Hope to combine some data later, once I've taken the images without filter to see if I can do better on the stars.

Cheers,

Justin.

[Ross G]

Great capture Justin.

I like the colour. It has a "glow".

Good luck with the filter.


Ross.

[Larryp (Laurie)]

Looks good, Justin

[tilbrook@rbe.ne (Justin Tilbrook)]

Originally Posted by Ross G

Great capture Justin.

I like the colour. It has a "glow".

Good luck with the filter.


Ross.

Thanks Ross!

Originally Posted by Larryp

Looks good, Justin

Thanks Laurie!

Cheers,

Justin.

[Stevec35 (Steve)]

Using a LP filter for imaging is certainly unusual Justin but it seems to have yielded a good result. You might like to check out the free photoshop plugin HLVG (hasta la vista green) which is pretty good for getting rid of unwanted green.

Cheers

Steve

[tilbrook@rbe.ne (Justin Tilbrook)]

Originally Posted by Stevec35

Using a LP filter for imaging is certainly unusual Justin but it seems to have yielded a good result. You might like to check out the free photoshop plugin HLVG (hasta la vista green) which is pretty good for getting rid of unwanted green.

Cheers

Steve

Thanks Steve!

I'll look into HLVG.

Cheers,

Justin.