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Everything posted by alan potts
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I will after Christmas seek the correct sleeve to give me the 37.5mm. As it stands I have the Zwo 21mm sleeve in the mix so finding a 20mm one should not be so difficult, it's just with it being a difficult time for the Post. I find it difficult to understand that even maybe 0.1-0.2mm can make so much difference. Thanks for you help. Alan
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Thank you for that, I fully see it is not easy to see the elongation as I also feel I have induced a very small tilt into the image plain with my half baked idea. Seems to me with this scope everything is the tiniest adjustment, not easy at all. Alan
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Lovely work, from that angle the Soul looks like a Teddy Bear sideways on. I did the Soul last night but I have a spacing issue with the Borg scope that needs putting right. Alan
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Reflecting on 3 Diagonals and my wallet
alan potts replied to DaveGibbons's topic in Member Equipment Reviews
I convinced myself expensive is best, though they do have much better build quality. I have 3 TeleVue diagonals and some time after bought a WO at about a 1/3 of the price, cant tell them apart if I am honest. Alan -
Is it possible for any of you eagle eyed members to tell me which way the spacing is out from this shot of the Soul Neb, is it too short or too long. I am not totally sure it is focused spot on, a task i have to say I fine very difficult with this new to me type of focus ring, seems as if you need to move it a millionth of a millimeter. To get this close took me 25mins I need to achieve a spacing of 37.5mm and at the moment I feel I am close using a slimmer than required spacing ring and some tape wrapped round as getting the correct equipment at this time of year is risky with post, and in any case I haven't found anyone that sells it other than TS. I am even considering taking 1mm off the 21mm ZWO sleeve as I have two. This is an hour I grabbed last night with the 183MC at 20x3min subs with darks and flats. Alan
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Beautiful shot of one I started last time out, at least seeing this I realise mine has a long way to go. Alan
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Superb shot, so much to look at and for in this shot, Thanks for posting. Alan
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Lovely shot, how different it looks to my OSC image from last time out, I could well require a lot more data as I was cut short by cloud. This looks really nice and I like it a lot. Ala
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I actually set about trying to invent my own way of reducing stars in PS and got an amazing amount of colour into them, didn't reduce them one bit. Sadly I didn't write down what I did and forgot how i managed it in the first place. I personally think the image you took is lovely, and as said by others framed beautifully. I can't get this wide field with a scope but I always have a battle with Alnitak. Alan
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There is a star-colour preserving stretch tutorial for photoshop on here somewhere, a bit difficult (well for me) but it worked very well. Alan
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Esprit 100 Pinched optics?
alan potts replied to Adam J's topic in Discussions - Scopes / Whole setups
That is not so good news but if it were to happen to me, there is no business that I feel would deal with you better than FLO, they sent me a spare cable even though I told them it was another fault which no one had ever heard of to do with our electric system which can't actually happen with the UK's. Alan -
Yes very nicely framed and lots going on in there, lovely dusty areas!! Alan
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I feel your being a bit hard on yourself, this is a very good image, Nikon lenses are I am sure as good as my Canon lenses, my only gripe about using them is the spikes, though I have to say yours seem nicer than the time I used my 300mm f2.8. Alan
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Interesting read, see I need to look at APP or PI, maybe after Christmas. Alan
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Not cleaning as such but I was amazed that my guide scope was still guiding fairly well when it was frosted over the other night, dust shows how little effect a bit of dust a stuff has on things. I have cleaned my front corrector plate of the Sc as it had a little oil or grease on the inside caused by adding a piggyback scope rail. Apart from that I don't think I have touched any of mine, eyepieces got more attention maybe. Alan
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That come out very well Mick, it was one of the first things I tried with my 12 inch Sc and a Canon camera on the fork, doubtless to say it should not to mentioned in the breath as nice work like this. It also pretty much heads my list of most disappointing visual targets, even through fairly large scopes. Alan
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I never had a chance to try either but both were very rare and I can't ever remember seeing a S/H 30mm and on only once a 40mm. I am sure they were both good eyepieces though for me the shorter end were at the very top of the game. Alan
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I completely misunderstood that then, but it would explain why removing the 16.5mm ring to give 38.5 has given me something of a result, I will have to see where I can get such a set of fittings from. Thanks for your help at least I understand now. Alan
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Well with the thick spacer in place and the Zwo set with spacers for 55mm the telescope will not reach any focus, even though the instruction state 55mm, again when I removed the 16.5mm Zwo spacing tube focus was achieved but stars were still slightly out of shape at the very edge. Something small is wrong here and I can't see what, can't believe I have bought a lemon, I though Borg was quality stuff, appears people have taken some very lovely images with their equipment. There is just so littl infomation about anything. Alan
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I prefer the first image and don't much like the starless version, it's a very large target this one, one which I hope the Borg can capture soon, if I get the spacing sorted. Alan
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Keep looking at this myself but the more I read about some of the other filters the more confused I get, seems a very good result considering the Moon. Alan
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Well Mike I have put in the wide spacer and set the ZWO spacer rings at 55mm and we will see how we get on. I was rather surprised I got a sort of reasonable image at 38.5mm, maybe with being short F/L the jumps to get it right are not so critical as they are around 800-900 where 1mm seems to be fairly important. Looks as though it will be clear for a test tonight. Alan
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You hard to please, it is a superb image that I feel anyone would be happy with. Alan
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I actually seemed to get different results from this reducer even using 55mm and I am assuming the spacers with the 071 do give me 55mm. When I used my Canon this gave very good results and this too is or should be 55mm. With the scope F/L at 805mm I did wonder if the spacing should be a a little less as with scopes of smaller F/L the figure goes up, I.E. 58mm quoted at 600mm. I did try it without and can't say I saw much different at all but with the moon about my choice of target was a bit washed out. The trouble with the filter slider in my view is it is just too damn expensive for what it actually is, I think I would rather buy another scope and have something to show for the outlay, as I had some sort of reflection issue with the reducer that I never found an answer to, it just went away. Alaways fancied a 150mm Espirt, should have got one when my friend and local dealer offered me one for 3500e, I bought an 18 inch Dob instead. Alan