harry page

Hi

I thought you were slowing down - giving us poor old souls a chance

As for the - not bad --- Not bad at all

I have found with the RSA the stars do bloat /halo a bit - every scope has its problems

Keep well

Harry

I have looked through that scope many years ago , looked at Saturn which was low in the sky and honestly the view was no better than my 14" newt

perhaps it was the seeing that made it not as good as it might have been.

still a privilege though to have looked through it

Harry

42 minutes ago, BlueAstra said:

Sage advice! BTW, I think I bought the H16 off you many moons ago!

Graham

 

Hi

yes I remember - glad its still going   I have a sxvf m25 which I run the power block of 12v rather than 240 v  works just fine

Regards

Harry

Hi

I asked this question a while ago and was told by Terry from SX that's is a no no for lots of reasons

so best leave it as it is

Harry

Hi

I do know the author has has a week off on holiday and as you have followed the email stuff as well

I presume it may delayed a bit .

Please try again and if you get no reply please let me know and I will make contact for you and get it sorted

Regards

Harry Page

Hi

If you look at your above log you will see the SNR is 0% and therefore Pixinsight can work out a weight - the image be very low on signal

So do not use the weighting part of the script to get round this or stars/cluster as you say - personally would ignore the weight option 

Regards

Harry

Hi

I think the change to the charging model in SGP could have been handled better , but its up to you the user to decide if you want go down that river.

there are other packages like voyager which might offer you more than sgp and has a version that can run 2 or more cameras , but still has to paid for 

We are Lucky that very complex software is available to us for relitivley low cost.

as always you pays your money and make your choice or not

Harry

Hi

As a owner of a few hitec bits and bobs , I hope you will be able to upkeep all the software as well

Good luck with it all

Harry

Hi

I have been using voyager for over a year now and was initially drawn to it because it offered rock solid stability and indeed it is rock solid

I have tried to make it crash by yanking out cables etc - the software reports a fault without crashing and has several ways of reporting emails texts etc.

For me a system lock up was the ultimate nightmare and wasted valuable time.

And since I have started the program has offered many improvements and is being upgraded all the time  -  It takes a different approach in how it works like the drag scrip  which is  really

a drag command system and is very very user configurable .

I would urge people to give it a go - much to learn -much to gain

Regards

Harry

Hi

when using sgp I do the following

1) Use the mosaic and framimg tool to select a target and field rotation to suit the object and then save this imformation as a target ( you can use a previous image as a referance )

2) when setting up I just do a blind solve to get things going so the scope knows where its looking and the camera rotation

3) make sure the manual rotator is selected

4) right click on the target saved earlier and there will a option to rotate the camera - select this

5) sgp will then work out the differance between your current camera rotation and the targets rotation and tell you how much to rotate the camera by ( inc clockwise or anticlockwise info )

6) do the amount suggested and let sgp tell you again how far you are out

It might take 2 or 3 goes but I can get to less than 1 deg very easily- of course this is all done by plate solving , which you must have set up first

all this can be done while off target , make it easier to make sure you can access camera rotation easily

cheers

Harry

Hi

Sorry I just meant pixinsight 🤪

Harry

Hi

This was/is a known problem caused by a windows update- I thought it was solved by the latest release of pixinsight

this means a full reinstall - not just a update

If it is still a problem please post of the pixinsight forum and hopefully it will be looked into

cheers

Harry

5 hours ago, MartinB said:

Lovely image Harry, I particularly like the dusty details below HH.  There is so much to look at here!

Me too

I like the dust in front of the reflection nebula 🤪

Harry

Hi

well Thats a big view - congrates on a excellent image

Harry

4 hours ago, MartinFransson said:

Now that is a lot of dust! Awesome capture! And I like how you handled the (very) bright stars.

Hi

I did manage to keep the brighness down - but have lost the colour to bright stars -- need to get some short subs for this -----Sometime 😬

Cheers for looking

Harry

10 hours ago, ollypenrice said:

That's lovely, Harry. Something of a change of style for you, too, as it seems to me. A softer processing which certainly suits this dusty, gassy region.

Olly

Oh dear am I going soft In my old age 🤪

Harry

10 hours ago, swag72 said:

Ooooooo.... that's absolutely lovely Harry 👍 I can see how this is an iconic image for so many.

Hi

Thanks Sara

BTW I saw Mr astro pixel at the uk astro fest and I promised to have a go - So I am listening to your vids

what goes around comes around :)

Cheers

Harry

19 hours ago, Adam1234 said:

Incredible! I'd be jumping and down with joy until my legs gave way if I got an image like that, well done.

Please dont break anything on my behalf :)  😁

Harry

20 hours ago, assouptro said:

Loads of lovely nebulosity Harry! 
Had I taken this, I would be happy, and possibly printing it off to put on my wall! 
thanks for sharing 

Bryan 

Thanks for looking and print away if you like :)

8 hours ago, tooth_dr said:

Not half bad at all 👍🏻
Not a camera I’m familiar with, but after a quick google it’s a big sensor.  Is this just a single frame and not a mosaic?
 

Hi

Yes just a big chip - never get enough imaging time here in the uk for a mosaic

Harry

Hi

I remember seeing images of the horsehead nebula many years ago and thinking I need to be into this imaging game

and I have tried many times to get a decent image of the horsehead , but it is low in the orange gooo around here and have failed many times with various scopes

Now I have tried with my tak 106   ( f5 ) and a sx sxvr H35 and even though I am still short on data ( yes Never enough is there) I am  reasonbly happy with it

Did struggle with processing and this is my upteenth attempt and perhapes will come back to it next year

It consists of 270min lum and 270min RGB taken in 5 min subs

please see here for a high res version http://www.harrysastroshed.com/imagepages/nebulapages/horse.html

Thanks for looking

Regards

Harry

Hi

Nothing beats a good discussion

IMO  the optical distance never changes I.E a reducer with a FL of 55mm will always be 55mm regardless of what glass you put in line ( flat glass only ) hence why the pinhole setup works

its just that the phsical length will change with the introduction off filters etc , I have measured this with various set ups .

So I always add to the physical length to adapt to various inline filters .

Very often there are so many other posible errors ( i.e camera chip set back ) that practical trial and error at the scope is sometimes easier

Regards

Harry

1 hour ago, david_taurus83 said:

That's a great test and worth the effort! I measured my 6D sensor to be 41.5mm deep using a digital caliper. Its modified and been reshimmed so to be expected. I am also of the opinion that optical distance is important and that mechanical distance should be REDUCED if a filter is added.

Hi

I am afraid I disagree with you here

If any glass / filter is introduced into the light path, the focal point will be shifted out by approx 1/3 the thickness off the glass - so the mechanical lenth must be increased to compensate

I admit it all gets very confusing sometimes

Regards

Harry

Hi All

I am often asked about working out focal set backs for reducers / flatteners when imaging etc

I have meant to put up on me old website ,  how to do this for ages -I have finaly got round to it

http://www.harrysastroshed.com/backfocus.html

some might find it useful

Cheers

Harry Page

Hi

not much help I know but I also this problem sometimes and have no idea why it does it

IMO  its a bug somewhere and there are a few that I have come accross

I make sure I sync looking well east or west as the mount can get confused where its looking and which side of the pier it is

and sometimes no amount of syncing will work and a reboot is required to get things running again

Harry