M31 with 100D and Star 71. Last of the 100 iso trio!

[StargeezerTim]

4 hours of 5 min subs obtained this evening at iso 100. DSS and PS. More colourful than my last attempt at M31 when I used a CLS filter. I have discovered that it is possible to image at 100 iso and could well get up to 10 min subs in my light polluted skies without using LP or UHC filters.

No blues or yellows in the galaxy but lots of star colour.

 

Edit... Here is a re-process after adding 80 mins of HA captured a couple on months ago.

 

 

2nd Edit! Boosted colours without doing too much damage to the stars. 

[Sunshine]

Love it!

[PaulB]

That is very nice.

I have never shot DSO's at a low ISO speed. The picture here is very clean.

Well done.

[tooth_dr]

That is real nice, full size looks really great.

[StargeezerTim]

I've added 80 mins worth of HA captured a while back. Its given it a very different colour balance! (I'll add it to the first post as well).

[peter shah]

Its a beautiful image....can see much difference with the Ha frames though.

[StargeezerTim]

One last edit! I managed to boost the galaxy colours without doing too much damage to the stars. I think this is the best result I've had for M31. It shows the value of imaging without CLS or other filters, also how a little added Ha can give a much better colour balance.

Its looking like clouds here now for the forseeable future so back into hibernation I go...