The core's gonna blow...help me, HELP ME!

[cloudbuster]

'Oh no...not more help needed for cloudbuster' i hear you all cry...and believe me when i say i share your pain, but this will be the last time of asking....me thinks?

I've blown-out the core of my M42...here's the incriminating evidence:

skywatcher 200pds 8"

Canon 40d

CLS light pollution filter

800 asa

11 subs 15 sec

10 subs 30 sec

10 subs 1 min

10 subs 2 min

10 subs 4 min

5 subs 5 min

darks as above, but with only 10 darks at 15 sec, instead of 11

40 bias 1/8000th sec

50 flats 1/250 mode

stacked in DSS

Processed in Pixinsight

someone told me: 'you might find that stacking only your shorter subs for the core layer will help preserve that detail.'

does anyone know how i go about this, and how, using Pixinsight, do i combine the images.

help much appreciated...honest g'vnor!

[tingting44]

looks great to me mate, but ive yet to spot my 1st messier yet lol i wish i could even give u tips mate but id be happy to even see one yet. let alone anything like 10% of your pic good luck with getting it better mate!! will be pulling up a chair on this one and cant wait to see your finished pic buddy!!!

[swag72]

Check out this thread http://pixinsight.com/forum/index.php?topic=3872.msg26577#msg26577 on the PI forum where I asked something similar. Seems like you can thrown in all manner of exposures in the HDRComposition tool.

[cloudbuster]

thanks sara. i'm goin to bed now...yet another cloudy night here in blighty, but will look up this link before lights out lol. also thanks for your appreciation tingting!

cheers

bob

[nmoushon]

With M42 its all about the layer masks.

[NickK]

What I did with PI is to use:

* registration to get the images in the same locations (for long and short exposures)

* the range tool to create a mask

* use the mask to remove the core

* process the outside

* process the inside

* use the mask to separate the inside

* then use pixel maths todo insideImage + outsideImage and bingo a combined image

[harry page]

Hi

Here we go

http://www.harrysastroshed.com/HDR%20comp.html

Harry

[tingting44]

Hi

Here we go

http://www.harrysast...m/HDR comp.html

Harry

sorry dont mean to but in, what is the name of the program i cant make it out in your video, or a link to download it, thanks mate, edit got it now, ahh its pixinsight! i was trying to find where to download that program earlier, but no luck do you have to pay for it?

[swag72]

Yes you have to pay for PixInsight - You can purchase online from http://pixinsight.com/

[cloudbuster]

Hi Tingting...private messag sent.

cheers

bob

[tingting44]

your a super star!!! thank you kindly my friend