Wyvernp

What a lovely photo! It seems you managed to get some nice star colour even in SHO. Nice framing too. 

22 hours ago, RolandKol said:

Sadly... 

But l think only side by side comparison can offer more than we have at the moment.

Unfortunately, it's the only way and there are so many variables... Moon phase, optical glass, atmospheric conditions, LP...so even on the same rig I don't think you can truely compare filters. I would like to see some independent testing of these filters.

They're probably not as good as the chromas, I have seen some subs on another forum with a few halos around bright stars. Also not sure how they compare to the baader ultra narrowband which I think are only 1nm more.

I guess just look at astrobin at pics taken with both and go with the ones you prefer?

13 hours ago, BallistaSlim said:

Thanks Ice. I have hit a snag though. It seems that the ZWO EAF doesn't play well with the Esprit range of focusers. That means that I have to abandon the thought of going laptopless. Hmm. 

Regarding darksite: My results from my backyard and the darksite have been  incomporable to each other so far in favor of the darksite, but I have thought that the difference when it comes to NB-data is not as huge. Is this wrong? 

/Ulf

I know it's been posted around here a lot when it comes to Imaging time taking into account light pollution but if you haven't already seen it I'd highly recommend watching Robin Glover's talk on cmos/ccd imaging, I have definitely improved my imaging since watching it. 

Hello and welcome from Sussex too! Quite a few of us now!

39 minutes ago, RolandKol said:

I also received them recently (36mm ones).

Some Stacks examples/tests below. No Flats, just used half a year old master bias and darks, autostretched in PI without any other manipuliations.

Test done on 05/08/2020, London, Bortle 8-9, via ASI1600m-Pro + Skywatcher 130PDS (flocked), Gain200 + 120Sec, 30min per channel.

Targeted Sadr on purpose, - wanted to if check filters produce any reflections (OIII especially).

(Almost full Moon was hiding behind the house and quite far away from the target)

I am quite happy with them, just packing is not perfect... Filter envelope is sealed with a halo sticker, - which managed to end up on my SII.... 
If someone will decide to go for them, - remove the stickers completely

H

SII

OIII

End result:

 

That'a a great result! Shame about the sticker though, I guess I was lucky with mine.

15 hours ago, FMA said:

Amazing results. I started yesterday and only got a white diarrhoea. Im using canon camera too. Ill try with iso 800 and longer exposures as you did. What is dark, bias,flats?

Look my white vomit and be proud of what you did., In fact mine, looks like the doughnut galaxy.... 

This looks like a focus issue. 

Thanks Carole, There's no rush on this so if you're on other projects at the moment we can absolutely wait until there's something that we want to use our 80mm's for.

On 31/07/2020 at 12:55, carastro said:

It's a good idea Wyvern, give it time. 

So does everyone get a chance to process it.

If it's a target doable for me I'll join in.

So at the end it could be a massive amount of collected data.  But we'd need some sort of re-sizing software to make sure all the subs fitted.

Carole 

Would any of these targets work for you Carole? Have listed a few in order of preference

1. NGC 1491

2. NGC 7380

3. IC 1848

Happy for any suggestions you have too.

Have to chime in and say fantastic image! Again, especially with only 51 mins. It's just behind my house at the moment but I'm looking forward to imaging it when it emerges later this month.

5 hours ago, Chris Wright said:

Where did you get this printed. A load of potential printers online but prefer to use one that comes recommended.

This particular one was done by my-picture.co.uk 

It is a bit dark, I guess it's hard to tell how these prints will turn out once printed but at the same time I wouldn't want it do come out ultra light either.

It's printed on dibond aluminium in matte

1 minute ago, ApophisAstros said:

Cool idea , but i wont tell you what my nephew said he thought mine looks like when i imaged it

Roger

Once you see it, you can't unsee it right 🤣

13 hours ago, tomato said:

Thanks, just one point on combining data from reflectors, it’s highly likely the diffraction spikes on bright stars won’t line up so these may need to be processed out?

Indeed, I hadn't thought of that... Good point. Maybe if we can get enough interest,  1 reflector per "team"?

That's a pretty nice result for the amount of time. I'd actually be pretty interested in the result of multiple scopes all separated by significant distance if any.

2 hours ago, carastro said:

It's a good idea Wyvern, give it time. 

So does everyone get a chance to process it.

If it's a target doable for me I'll join in.

So at the end it could be a massive amount of collected data.  But we'd need some sort of re-sizing software to make sure all the subs fitted.

Carole 

Oh yes absolutely! My lines of thinking  were something like a large shared online area where people can post their subs. I think they should be pre calibrated to save on space and time for others.

I think that is the most interesting part, to see everyones take on the data.

I have a fairly obstructed view so I think if we can find a subject high up that may suit more people.

Just received my heart Nebula print, I think it came out a bit dark but I love it nonetheless. 
 

No-one? guess everyone has seen my subs.... 😛

Morning, 

I thought it might be an interesting project to do an imaging collaboration, not sure if anyone has attempted this on here before?

I guess we'd all need fairly similar setups in terms of fov and arcseconds/pixel. And would need to agree on a target 

Anyone have any thoughts? Here's mine...

Groups of people with similar setups
Agree on target and share platesolvable image to frame the target
Everyone takes subs for all the filters agreed on
1 month to take subs
Share calibrated subs at the end

Wyvern

I think astrophotography purchases come in waves.. buy first dedicated setup...lots of cash 

then

I need a longer focal length... more cash or I need tighter filters....

18 minutes ago, Ags said:

When the funds stop...?

That's why we have credit cards 🙂

Nothing like interest free purchases!

That could will be the case, I remember now that the HA was so strong that it just blew out the OIII

1 minute ago, Adam1234 said:

Very nice, lovely detail. I'm looking forward to shooting this target myself once it becomes visible over my garden hedge. 

Have you tried processing in HOO? It will be interesting to see the difference 

I found the oxygen pretty faint, and I did try as HOO but it didn't look quite right to me, others have managed to capture much better OIII data than me and have made lovely images without the SII. 

25 minutes ago, Snoani said:

Awesome image Wyvern, love it.  

Can I ask soomething, I note that you use a William Optics GT81, which has 478mm focal length.  I was considering the Heart Nebula this week, but decided against it because I thought that my 480mm would clip the edges of the nebula.  I don't currently have a reducer and I was wondering whether you are using the WO reducer, or whether to managed to frame it as the above focal length?

Thanks 

Jem

Thank you Jem! Yes I use the flat6a iii flattener/reducer, I think you're right 478/480mm might just be a bit too long for the heart.  Although it could make an interesting target with melotte 1 and the fishhead like below.

Absolutely! I don't think its overcooked. Very nice work!

Is it wrong that I prefer the green version? Gives it a cool/creepy alien quality...

Lovely photos though! I must try imaging this myself one day.

Thank you Steve, appreciated!