Stuart1971

Yes, I think maybe either way will give you a very fine image, if the SII is stronger then yes, your idea will be good…I maybe was getting mixed up with another target, as I thought the OIII was strong in the Jellyfish…

I would go with OIII, especially on that target, SII is in the red same as the Ha, so go with the Blue OIII, then you will have a great HOO image when processed…👍🏻

I have an old Orion dew zapper 12v one which is 20mm wide, but it’s pretty long as it was for an 8” SCT if of any interest DM me…👍🏻

😮😮😮

Sorry my mistake, still £200 more than they are here…👍🏻

Wow that is a lot more for us, £1370 plus 20% VAT, and the same camera here is £1170 all in…

I think it’s great too that @FLO offer a smaller postage charge for Royal Mail for smaller items, most dealers have a fixed courier charge of around £7 for all items, this puts me off using them if the item I am buying is just £12 in the case of some spacers I wanted, and were out of stock at FLO… I asked them if they could send Royal Mail and it could be sent as a letter, but they would not entertain the idea….☹️

Our post had been a nightmare recently, with some items taking forever to get delivered, and some days when the postie does not even come…but in the last few months I have had a few items from @FLO and each time they turned up the next day regardless, somethings when I didn’t even order till the afternoon the day before, so I can’t complain, they can keep my credit card and other bills…as long as my Astro kit gets here…😂😂

Agreed, some people would much prefer to only have to send back to a UK dealer though, but certainly if you are happy to pay the fees and send it back to china if there is an issue, then yes buy from china, not sure what the price difference would be from china with fees, or from UK dealer fees and VAT all in…maybe not that much…🤔🤔

That looks superb…nicely done…👍🏻

What do you get on images with no filter or just a plain glass filter ??

If it was that, it would show on all filters and not just one of them…but still a good idea to cover, or swap them out one at a time for Black headed ones..

For those that did not know, there is a UK supplier of all the Touptek Astro cameras, theses are tried and tested cameras, and have been supplying to the scientific market for a long time, and are used in many of the big retailers models, ie, Altair Astro, Omegon and explorer scientific all use Touptek hardware based cameras and rebrand… I personally did not know about a UK dealer of them until yesterday… This maybe of some use to some of you, obviously the prices are not as cheap as buying from china, but are cheaper than the bigger well known brands.. https://www.microscopecameras.co.uk/astronomy-cameras

Can I ask too, is it possible to set the zero position on this rotator, by this I mean if I wanted the rotator to be in a certain orientation when at zero, this could be set…?

exactly my point, so a beginner can get better bang for buck buying second hand…IMO…👍🏻

Hmm, I think £200 extra for a TEC cooler is a lot TBH, especially when you can get a good secondhand 533 for around £550 now, which is a much better choice for a beginner with £600 to spend…and the 533 sensor, is pretty much double the size of the 585..

No problems with any sag or tilt being introduced with the DSD version…???

I had the Pegasus version, and had it fitted between the scope and the flattener on the esprit 100, as did not have room the other side of the flattener, due to have a tilt adjuster fitted there, Pegasus supply the correct adopters to fit in this space, but they were an extra £70, it also meant the focuser did not need to come out as far, as this took up some of the backspace which was a bonus too…but I just found I never used it so took it out and sold it…maybe I will regret at some point… I have the DSD motorised flats panel and that is superb…👍🏻

The Petzval design should actually be better, as the flattener built into the scope is much further away from the sensor, to make a reflection such as what you are seeing, so any reflections from that glass, going back to the sensor will be spread too wide by the time it reaches the sensor, your reflections are from a source much closer to the sensor itself. My guess would have been the filter anti reflective surface that should point toward the sky is actually pointing at the sensor…but you have tested this so I am at a loss

Yea, my thoughts too, I have only ever seen this from the ASI1600..🤔

Brilliant review and comparison, the Optolong L-Ultimate 3nm comes out really well, much reduced noise too as well as nice small tight stars… Some Halo on the L-Extreme and a bit too on the Askar, but the Optolong is excellent… What I would like to see is if the Optolong produced halos on longer exposures, or whether it would still be halo free, as comparing it to 6nm filters for the same exposure length does not seem totally fair…so for example, a 3 min exposure on the 6nm variants against 6 mins on the Optolong Ultimate…would be interesting… ‘Excellent post all the same…👍🏻

Hmmm, yes they are pretty bad, and also more worrying is the halos are off centre too, which only normally happens at the out edges of the image, would not expect this at all with a Tak106… I used to get halos off centre like that with my Baby Q which turned out to be a really poor example, with bad collimation issues…

Do you use a flattener or reducer in your imaging train..? If so one thing to try is to put the filters on the telescope side of that, and you may find the reflections will be diminished..👍🏻

This was just a slight crop and a little stretch using just my iPad, hope you dont mind, if you do I will happily delete….👍🏻

That’s a superb image, 👏🏻👏🏻 but I can’t help but feel it could be stretched more to reveal more dust around the nebulas, exquisite all the same…