Milky Way widefield Ha

[RobF]

I had a go at shooting widefield with a 28mm Pentax lens on the front of my QHY9 at astrofest recently. This is 7x20min subs around the Cat's Paw/Scorpio.

I'm thinking of having a go at Barnard's ring if the weather allows towards the end of the year with this set up. Lens only cost $20 or so from memory, and seems ok for a bit of widefield fun. It seemed a bit crazy at first shooting NB from such dark skies, but I was there all week and the horizons are so much better than what I have to contend with from home.

[RickS]

Looks very promising, Rob!

[RobF]

Do you think David will swap me for the Nikon? :P
Actually this lens has turned out to be great fun on the 450D shooting landscapes and family too (only in M mode mind you, but its all educational...!)

[RickS]

I assume that's a rhetorical question :lol:

[pixelsaurus]

Great shot but....... what is NB?

[batema]

Hi Rob,

Looks like a promising set upi. Can you tell me how or what adapters you used to attach the lens to the QHY-9 as I would love to do the same.

Mark

[multiweb]

Awesome ha field Rob. :thumbsup: We keep having clear nights in Sydney so I kept shooting every single nights since Tuesday. Finishing off a highres mosaic from M20 to M16. Two panels to go :)

[jjjnettie]

NB = Narrow Band :)

Nice one Rob. :) Isn't it relaxing doing wide field now and then??

[DavidTrap]

I have a Nikon adapter that screws into a female t-thread. If you're up at Leyburn and I'm not using it, I have no problems in sharing - trying to set a good example for my 4yo who seems to be having great difficulty with that concept! Would have to check the backfocus on your camera to see if it will reach focus.

DT

[peter_4059]

Nice Rob - time for a mosaic?

[RobF]

Yep, what 'nettie said - NB = narrowband (Ha in this case)



Hi Mark
I first looked into this after the great Ha work Marc posted with his 200mm lens. I've got the k-mount lens (2 now and another ordered) but Marc uses M42 versions I think, which are probably easier to get adaptors. I got one custom made by Peter Tan - took ages to get and I'd almost given up on it, but glad I was able to give it a go.



Sounds awesome Marc. You need lots of data and clear nights for sure.



Like shooting fish in a pond compared to imaging through a scope for sure! I wouldn't have got this one without Geoff coming to rescue with additional M42 spacers I'd forgotten to bring...:rolleyes:



Thanks David. "Sharing is Caring" I've heard my young ones saying, whereever they picked that up :lol:
The pentax lens are 45.6mm backfocus I think. MIght just take you up on the NIkon if at Leyburn - hard to get weekends to go for 2 nights and good weather for me though. :sadeyes:



Thanks Peter. Yes, its crying out for more frames and horizontal display. Its surprising how fast the milky way moves down to the West when you're shooting 20min subs though! Would have been a multi-night effort. Maybe next year :question:

[DavidTrap]

Weather permitting, I'll be there next weekend!

DT

[RobF]

Leyburn - the heart is willing but not sure my brownie point balance allows it so soon after astrofest! :)