M51 reprocessed

[Petergoodhew]

As my processing workflow has evolved a great deal in recent months, I decided to have a go at reprocessing some old M51 data.  My skills were put to the test as I no longer had the correct luminance flat, so some dust bunnies had to be chased away manually.  Comments, critique, and suggestions welcome as always - it is through these that the workflow does improve.

[carastro]

Looks great, you did a good job with the lack of luminance flats.  some excellent detail in the nebula.  

If you have a closed filterwheel it is worth trying flats from a different filter if you find yourself without the correct flats.

Carole 

 

[Petergoodhew]

23 minutes ago, carastro said:

Looks great, you did a good job with the lack of luminance flats.  some excellent detail in the nebula.  

If you have a closed filterwheel it is worth trying flats from a different filter if you find yourself without the correct flats.

Carole 

 

Thanks Carole - great tip. Will try that next time.

[Demonperformer]

Don't see anything wrong with that one. Is there some Ha in the mix?

[Petergoodhew]

1 hour ago, Demonperformer said:

Don't see anything wrong with that one. Is there some Ha in the mix?

Thamks. Well spotted. Yes there is, but it was a very gentle touch.

[Allinthehead]

That's nice. I like the ha detail.

Richard.

[Adam J]

you don't say what you used to process the image?

[Petergoodhew]

43 minutes ago, Adam J said:

you don't say what you used to process the image?

Ooops!  CCDStack for calibration, registration, data rejection, stacking and deconvolution. Photoshop CS2 for everything else.

[ollypenrice]

That's good.

While I would never admit it in public, I usually use a luminance flat for all filters and only bother with flats-per-filter when that stickler, Mr O'Donogue, is in residence.

lly