Trawling for a prawn under moonlight ED80.

[tilbrook@rbe.ne]

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]

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]

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]

Looks good, Justin

[tilbrook@rbe.ne]

Thanks Ross!




Thanks Laurie!

Cheers,

Justin.

[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

[tilbrook@rbe.ne]

Thanks Steve!

I'll look into HLVG.

Cheers,

Justin.