alan potts

The yellow is a little strong for my taste, I am sure the data will produce better , not that i have ever tried though.

Alan

I have a 300mm F4 and an F2.8 Canon lenses, the F4 is from 20 years ago but still sharp, how do you connect the lens. I have a 071 and soon a 183mc to play with.

Alan

One I wish to try now I have a very short scope at 330mm, if I get a result half as good as this I will be pleased.

Alan

Some amazing shots there from one of the biggest setups I have seen, and there was me think of mounting 2 scopes, great work.

Alan

It is a very nice capture Brian, I like the colours, loads of detail, one I would like to try but normal OSC .

Alan

Looks very good, comes out well in mono.

Alan

Lovely shot, not seen this done in Ha before now.

Alan

Beautiful image, never seen it so good as this.

Alan

Not cheap are they Neil, I gave up trying to understand any filter a long time back, he says having just ordered a astronomik's UV/IR cut.

Alan

I don't feel it is true to say OSC is useless under Moonlight skies, less effective yes. I took 6 subs the other night as a first test with my ASI 071 and the Moon was almost full, albeit some way from my M13 target

This was no calibration at all and no cooling, reasonable result I feel.

Alan

lovely image there Knobby. must find out exactly where this is to have a go, it was the subject of one of the very first tutorials I watched.

Alan

Would be nice to see any targets from that part of the world, would be nice to see LMC and SMC.

Alan

I think that looks very nice, with the Moon can't help even though I know you can do filtered dark arts with it around but 90% is around for sure. We appear to have a break in the weather after 42 days clear.

Alan

1 hour ago, tooth_dr said:

Alan, what I mean I cannot see any difference between the first one and the modified one you have posted later in the thread?

 

 

 

Ha ha, sorry I though you were saying it was still wrong, no I change the header as sometimes people look no further and I thought it did look a bit better, the other was a horrid colour with a yellow green caste, which if I'm honest I thought was OK this morning, easily pleased i guess, sorry I mis-understood you question

36 minutes ago, Laurin Dave said:

Is it connected via USB3?  if so it should do 10fps .. 

No I don't have a USB 3 laptop, 5 laptops but none USB 3, only my 2 desktops are USB3. I find it odd this should be required as my Canon 7D mk2 is more pixels and it does live view if I recall correctly, good while since I played with it on the scope.

Alan

10 minutes ago, tooth_dr said:

@alan potts have you attached the right image?

Not sure what it should look like but it was a whole lot worse than that beforehand, I did it very quickly and with this game whats right anyway. I thought it was much more red in real terms, I know a got a few subs with the Canon a while back.

Alan

Here you go gent,s it was a yellow caste not green, and it took seconds to remove, oddly though until one of you mentioned it It didn't really bother me, once pointed out it is always more obvious.

5 minutes ago, Anthonyexmouth said:

I shot the same target last night. Didnt quite nail the processing though, never do. 

Yes I saw your and I believe left a like or maybe a comment. The processing I tend to rush when I don't have enough data, like last nigh, I am not bad a PS, about the only think I half understand, mind you that's taken 14 years. I feel yours needs a tad more contrast, lots of good things there though.

Alan

3 hours ago, Laurin Dave said:

Looking good Alan, nicely framed and a good field of view,  I expect the green cast is a gradient caused by the Moon..  Are you using Focusing Aid in APT ?  its in the Tools tab or Alt+F shortcut it allows you to measure HFD or FWHM.

Dave

I may have over stretched it a bit, green is easy enough to remove, don't know what caused it as the moon was only at 5 degrees when I stopped. I am using focus aid but not finding it easy, it is the 2,3 second delay in Live View, it's not really live, unless I am doing something wrong (again). I think the focus on mine is not good, since it feel off the mount one night, good for heart attacks, I am strongly considering a Baader focuser to replace it, just need to go out and measure the barrel, 90mm I think but I am not sure of thread , there is 1mm and 1,5, need to look.

Looks like the weather is changed 43 nights clear, pretty good that.

Alan

3 hours ago, Davey-T said:

Coming along nicely Alan, Steve posted a version last year ? practically all white Pelican that looked really good.

Have you sorted all your gremlins ?

Dave

Working on it Dave, but as I am just about to order, a CEM 60, 183MC Brat mask and some weights and tripod I am sure I can find plenty to keep you all busy. Feel I can deal with the tripod and counterweights.

Alan

Had a few set backs and the Moon didn't help me much last night as I only got 17 x 4 minute subs and Biggles flew across 2 of them, in fact one looked like Bomber Command was out and about. So didn't know what to capture and ended up doing this, it is not focused very well at all, I believe this is moving a tad during capture, be it temperature of whatever.

Stacked in DSS and a quick few stretches in PS. 115mm APO at 805mm F7 using most dynamic mode, shot at minus 5 degrees with ambient at about 22 degrees.

Not keen on the colours so I think I will add to it by at least the same again and re process. If anyone reads the thread a see Green mentioned, I have removed it.

Alan

2 hours ago, glowingturnip said:

you can make a mask for yourself with a craft knife and some stiff black card - generate the pattern here:

http://astrojargon.net/maskgen.aspx?AspxAutoDetectCookieSupport=1

and then use it with Bahtinov Grabber (http://www.njnoordhoek.com/?p=660).  I get critical focus every time in just a few minutes.

Stuart,

I have a delivery coming in the next couple of weeks from FLO, I have added a mask to the shopping list with all the other goodies. I was wondering if anyone had some good advice on the tools in APT.

Alan

It is early days yet but I am struggling with focus, the focus seems to change, now whether this is focus slip or temperature change I am not sure.

I don't yet seem to have the hang of the tools in APT as the live view isn't actually live but a 2,3,or 4 second shot, or whatever.

Any tips from you guys as to the best way, I don't have one of those masks yet.

Alan

I had full sets of both a while back and spent a very long time comparing like for like matches on a all my scope, these include a 115mm APO. I have to say my findings were Delos were slightly better in terms of how deep they see, a galaxy was just that tiny bit better. However i would say differences were subtle and nowhere near black and white. In terms of sharpness my findings were they were much the same. But on my 18 inch Dob Ethos shone due to the wide field of view.

Both superb eyepieces in my view designed to do different jobs.

Alan

It's like that for me most nights .

Alan