paul mc c

4.5 hours of 180 sec subs,will add to this when skies clear.

102ed, 533mc pro, l-enhance, Asiair pro.

Sorry wrong section....meant to post in imaging🫣..can mods remove..sorry.

Around 11 hours of 180 sec subs,over a few nights of ok to not good skies, will try a mosaic one of these days...

102ed, 533mc pro, l-pro filter.

3 minutes ago, tooth_dr said:

Very nice Paul, did you get much last night or the night before?

Mostly last night,though what seemed like mist or high cloud came over around 12,so images weren't the best after that.

Around 7 hours of 180 sec subs, l-pro, will add more data when I can.

75 minutes of 60 sec subs, l-pro 102ed.

Great image,I I captured the same thing e few nights ago.....have to go back and re-process after seeing this.

4 minutes ago, tooth_dr said:

Lovely nebulosity Paul. Was this from last night?  We had a good clear run here 

Yes mate,last night,was a nice night for a change 

Around 300x30 sec subs.

533mc pro.

L-pro.

Quick process will try again tomorrow.

Terrible seeing last night,but had set the 9"ota on the mount,not as easy as it sounds.....so had to get something.

1st native fl

2nd 2x Barlow.

What gear did you use for this..... cracking image by the way.

Think it should be straight forward enough...though never done it.

Not the best seeing here this morning,the south winds seem to bring a lot of dust.

You can't.... Asiair won't let you pick a home position, unfortunately you have to manually move the scope to your desired parking position, the only downside,in my opinion.

Brilliant....as always.

Probably this...£20.

Around 7 hours of 180 sec subs,

102ed, l-pro 533 mc pro on Asiair.

Around 10 hours of 180 sec subs.

102ed, 533mc pro, l-enhance on Asiair.

Very hazy skies,which turned out to be Sahara dust, but take what we get.

25 minutes ago, Albir phil said:

How many subs did you take.Great image👏

240 180 sec subs,flats, darks and bias.

Bubble nebula over a couple of nights.

102ed, 533mc pro, l-enhance on Asiair.

Pointing out the obsy door at Saturn 

2 hours ago, symmetal said:

The flattener has an 'integral' T2 adapter, the knurled ring on the end so I would now assume that it is present in the 55mm spacing quoted, which is measured from the right edge of the ring, in which case the purple line is the 49.5mm required. If the adapter is not included in the flattener 55mm spacing specification then the green line is the 49.5mm required. I would think it is part of the flattener as Peter above has said so the purple line would be the one to use.

Note the front of the camera body is as I've indicated, and not where you've placed it. The sensor is 6.5mm to the right of the of the purple or green line end.

Note: pictures of the flattener on the web don't show the ring as knurled anymore, implying it's not usually removed, so it is now almost certain that the purple line is the one to use. 🙂

Alan

Brilliant Alan,thank you much appreciated.

Paul 

1 hour ago, symmetal said:

You don't say what model of reducer/flattener you're using to confirm that it's 55mm, but assuming that's the case:

The 533 has 6.5mm 'backfocus' from the front of the camera body, or 17.5mm from the front of the attached 11mm spacer. Your ruler is showing the 55mm mark around 10mm from the camera front face so that's not quite right.

As the filter and camera protect glass will add around 1mm to the required back focus it's better to aim for 56mm back focus distance, so you want 49.5mm betweeen the rear face of the flattener and the front of the camera body.

I'm assuming the knurled ring at the rear of the flattener isn't part of the flattener itself, in which case your start point for measuring is correct though parallax is likely making it look a little off.

Alan

Hi Alan, thanks for replying,the reducer is Altair lightwave 0.8 ,the knurled ring is in fact part of the reducer, do you mean this distance should be 49.5.

Bit of help needed, my set up is 533mc, filter drawer and 0.8 reducer/flattener, I believe the correct distance is 55mm, is what I have ok.

Thanks Paul