Witch Head nebula with Samyang 135mm f2 lens

[emyliano2000]

I always wanted to shoot this target but it's a no go from home.

Back in November I went to a darker location and I shot 8x600sec with a qhy10 but that wasn't even close to being enough. 2 weeks ago I went on another field trip and bagged another 40x300sec but this time with my canon 700d.

I will keep adding to this target on my field trips because I realy wanna make it look great.

Do you think that some Ha might bring some details in the surrounding nebulosity? I could try to do that from home.

[Craney]

Lovely image.  I am very jealous.

I'm trying to do the same with this object and Banard's Loop with the  Samyang 16mm and a QHY8pro.  

Did you find it easy to achieve the backfocus and get sharp enough stars ??  ....  I'm having problems. Assuming it to be 44-45mm as per regular Canon lenses, is the sweet spot just uber tricky to  get spot on due to it being a fast lens ??

Sean.

[emyliano2000]

6 hours ago, Craney said:

Lovely image.  I am very jealous.

I'm trying to do the same with this object and Banard's Loop with the  Samyang 16mm and a QHY8pro.  

Did you find it easy to achieve the backfocus and get sharp enough stars ??  ....  I'm having problems. Assuming it to be 44-45mm as per regular Canon lenses, is the sweet spot just uber tricky to  get spot on due to it being a fast lens ??

Sean.

Thanks Sean.

It wasn't very easy to be honest. I used an altair ccd to eos adapter for hypercams but the m54 to T2 that came with it is way too big so I had to buy another m54 to T2 from TS optics. That got me very close but not close enough so I ended up shaving it with the grinder until I got it down to around 1mm in thickness. Using the IDAS LPS-D1 filter allowed me to go over the 44mm with 1/3 of the filter thickness and luckily the samyang 135mm lens is focusing a bit passed infinity. I used the bahtinov mask that I use on my TS65 to focus it. In the end it was all fine but it took me a while to make it work. 

Emil

[PeterCPC]

Lovely image. I have always wanted to have a go at this but the weather/Moon always conspire against me.

Peter

[Knight of Clear Skies]

That's excellent with the layers of dust really coming through, great framing too. I'd recommend reposting it in the main imaging section to show people what is possible with a 135mm lens.

[ollypenrice]

Great stuff Emil and good work on Rigel.

Olly

[smr]

Fantastic work. Great image.

[PeterCPC]

I finally had a go at this but due to my location I have a very limited time to do it. I tried with the Samyang 135mm lens (love this lens) and took 41 subs only of 120 secs 800ISO. I couldn't see any trace of the nebula on the individual subs but this was the result of stacking in APP. I really struggled with the light pollution even with a UHC-E clip in filter. Nowhere near as good as yours but it encourages me to try again another time when I can start in the east.

Peter

[carastro]

It's looking great already.  I must give this a go with my DSLR as it is far too big for any of my scopes and mono cameras.

Carole 

[alacant]

Hi and well done. Great shot. I'm getting nowhere with it @ 300mm. It looks like 135mm is the way to go. It's getting too late though for this year...

Cheers

[PeterCPC]

The 135mm Samyang is best I think for this but light pollution is a big problem as it's so faint. I would have liked longer exposures than 120 secs but it would have washed the subs out. I was imaging over a road with LED lights and there are sodium lights on an estate not far away in the same direction.

Peter

[Pompey Monkey]

12 minutes ago, PeterCPC said:

The 135mm Samyang is best I think for this but light pollution is a big problem as it's so faint. I would have liked longer exposures than 120 secs but it would have washed the subs out. I was imaging over a road with LED lights and there are sodium lights on an estate not far away in the same direction.

Peter

Sounds like the perfect excuse for a holiday in La Palma to me!

 

[emyliano2000]

I always tend to shoot this kind of targets when I go to dark sites and I choose dark sites with little or no light pollution in the south.

Emil

[tooth_dr]

Ah this would explain why I couldn’t ‘see’ it in my images. 520mm is too long!