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EA2007

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Everything posted by EA2007

  1. First pics from my new C8 OTA on the (N)EQ-6 Pro. I am quite impressed for a quick attempt : ) Sweet mount, I had it set-up inside only pointing roughtly north, whacked it onto Lunar tracking and it stayed with the moon for 30 mins! Opened the door in the back room and let the C8 do its thing, the pics are slightly out of focus but this was just around sunset i.e. 1 hour ago and the air currents nearby affected the images. Random exposure times and around an ISO320 level, taken at prime focus with an Olympus E-400 dSLR. I will put on one taken with a 2 x barlow lens attached, however it is quite out-focused!
  2. updated version, slightly better 4 x 1 minute, at ISO1000, statcke in DSS (Deep SKy Stacker)
  3. Hello. I take it your doing 'prime focus' imaging? i.e. connecting the D40 to the eyepiece holder of the telescope via the removal of the lens and replacing it with the t-ring & t-mount? If so then you need to ideally find a bringht star (Vega, Arcturus, Deneb, Altair, for example) and see if you can focus with it. The D40 doesn't have LiveView so you will have to use the Viewfinder, this is somewhat of a pain at times as it gives you a ver small area to look through. Try getting your scope on one of these stars to get the focussing right. Then your onto your next area.....exposing! This is dependant on the object your after, your scopes focal ratio and the camera itself. Here's a 'rought' guide: Moon: 1/10th sec. exposure (depening on size of cresent). The ISO will be upto you, as a base stick it at 800 then work form there, 800 may be too much so lower it to 600 then 400 etc til you get the correct image. Planets: Similar to the Moon, short exposure around 1/2 sec. and gain tinker with the ISO level Bright DSO's (Deep Sky Objects): Usually clusters (open and closed, M13, M92, M71 for example), longer exposure of 30 secs+ on an ISO of 800+, again this is rough. Mid DSO's (i.e. bright nebulae, nearby galaxies, M31, M27, M51): Longer exposure anywhere upwards of 1 minute and an ISO to suit. You will find that perhaps the 'noise' will increase with higher ISO levels, this isn't too much of a problem with Canon's and Nikons but the Olympus range are really bad. Its all a matter of testing until you find a suitable combination. Please note, this guide is rough, perhaps some other forum people will advise better and more accuratly.
  4. I shall be testing it again tonight......its clear, wahoo!
  5. Shall do. Thanks for the advice. I have an incling its power related but who knows.
  6. Lol, cheers. I learnt from the NexStar to insert the date in the correct format! As for the 'Daylight Saving'......what should I do 'Yes' or 'No' ?? Set-up as follows: Date: 07/24/2009 Time: 23:00(ish) Daylight Saving: Yes Location: 0.00 GMT (Being in the UK) I did all those things as above....the scope does slew close to the object, I mean, it knows where to go rather well and it is accurate, only about 2 degrees off....but it says alignment failed...the only thing I can think of is power supply, the mount was flashing!
  7. Hello all, First image from my new setup. Messier Object 13, 1x60sec, 1000iso, Olympus E-400. Rather lame, I need better imaging equipment. Thinking a dSLR with LiveView and possibly a focal reducer. The Olympus E-400 I have doesn't cut it, for starters it is soooo noisy, even with noise reduction (NR) on it creates a dullish red background and also Olympus seems to use the NR-filter to createa second copy of the exposure to eliminate the bad guys in the original, this takes the same time as the original exposure to process, so a 40 sec exposure takes another 40 seconds to process, altogether wasting 80 seconds (1 minute, 20 seconds). It won't expose past 1 minute on BULB and thats above an ISO of 400....so no good for a slow scope. The image is out of focus......I had to manually star-hop to find M13, the viewfinder scope attached tot he C8 is rubbish, think I shall invest in a RDFinder.
  8. Hello, I eventually got around to using my new EQ-6 Pro with the C8 Schmidt-Cass. However, when I tried the 3-star align it failed.....multiple times. I had the mount properly NCP aligned and the objects I was using (namely Vega, Dubhe and Arcturus) were centered well in the middle of the eyepiece. Having had a NexStar previously, I know that if the power supply isn't fully on it then the alignment procedure won't work.....is this the same for the Synta mounts? Also, I use a Celestron Powertank, can the EQ-6 be ran directly from the mains using the plug supplied with the powertank? I noticed that the EQ-6 requires 12Volts, yet the power supply into the powertank is 15 Volts...so would this knacker the insides (I know noting about voltages etc!) Can the mount be ran from the mains via the powertank?
  9. No idea, on the specifics, but good luck. nBody simulations are realy useful in understanding stellar movement and mass relations.....sounds like your doing some kind of research?
  10. CANON...CANON.... I have an Olympus....go for the Canon!
  11. It depends how much detail your after. I have seen okay results with a dSLR. If your magnification is okay then you will see some divisions in Saturns rings and the medici's of Jupiter. However, like I said, detail comes from the CCD's frames. If you image Jupiter with a single shot from a dSLR then all your likely to get is a large orangy-white blob with some specs around it that are the moons. Likewise for Saturn, an orange blob with the rings on the side. The frames can be picked so that the most detailed are used to be processed and from this your resulting image will be significantly more detailed. No harm in trying though, the moon is easy to get with a dSLR at prime focus.
  12. Hello Doc, Remember you aswell! I shall try and get some pics on, I am having difficulty in trying to store the mount some place. I don't really want it upstairs as that will mean me having to lug it down when I want to use it......and downstairs is rather limited space wise. Once I find a home I'll pic it up!
  13. Hello people, Been a while since I have been on here, some of you may remember me (for better for worse, lol) After graduating uni last year and taking a while to get a proper job, I eventually found one which paved the way for me making some good money to spend on some new astronomy equipment. Having previously purchased (in chronological order...) a Celestron Starhopper 8" Dobsonian and then a Celestron NexStar 4SE, I decided to go for something a little more balanced. So.....out with the little NexStar and in with the new (after a few years). Having searched the internet (what a wonderful idea), I found somewhat of a bargain, courtesy of David Hinds - get this, a Celestron C8 OTA, with fastar compatability for the sum of £560! This thing usually goes for double....fair enough its an ex-demo version and going by the description Adam Hinds gave, I was expecting it to be quite mashed up with scratches.....all I can say there is a few very light scuff marks on the OTA, nothing like what I was expecting, all the optics seem in ok order and it came with all the necessary accessories, bonus! Next up on the list was a mount....a good mount. I was going to go for the HEQ-5 Pro, but after realising that the mount is pretty much the core to your observing then I figured why not invest in something future-proof and go for the EQ6 Pro, so I did! I ordered both items on Wednesday night, the mount from Rother Valley Optics (first purchase from them) and the OTA from David Hinds (again, first purchase) and although Mr. Hinds mentioned next day delivery I was fully expecting them both to not be delivered until this next week. To my surprise they came early Friday morning As with another post in this forum....it needs to be said that Rother Valley Optics are supplying the NEQ6 Pro. As far as I am aware this is the same as the EQ6 Pro, but with an 'N' printed on it !? There seems to be nothing on the internet to suggest a difference, infact all you get when you plug NEQ6 into Google is the 300p on the NEQ6, not the mount as a solo effort. I'm thinking the 'N' stands for 'newer'...anyway. Having spent time to go through the manual understanding the set-up procedure then watching the wonderful tutiton DVD courtesy of RVO via Ian Littlewood (is it just me or does he sound like a midlands Andy Murray?), it wasn't too bad a job to get the scope fairly accurately NCP aligned. Something strange happened last night, maybe it was heavenly intervetion, but around 6pm the sky started to clear out after having solid cloud for the last 2 days, by 10pm it was pretty clear, so out with the scope and mount. Just got the thing set up, started to have a look around for some things, mainly M57, cos its well easy to find and yes it looked rather good through the C8 and even bigger, albeit fainter with the 2x barlow attached. Then the cloud came...........well, that kinda put a downer on things so I had to pack up for the night. Here I am awaiting another clear night, so I can fully test the new setup. From first practise though, all is good and a worthy purchase.
  14. Wales, oh dear......I spent 3 years there at uni and it rained....constantly. The only place it didn't rain was in Cardiff...although on a night its rather lighted up. Brecons are good though.
  15. Tres bien, bon soir, de la nuit est blanche et salut de chat rouge! La pomme de terre est magnifique.
  16. Jodcast Science Friday They are the two I use.
  17. I just asked this question in the 'Equipment Help' section..........I might need an extender for my Olympus E-400.
  18. Ah coolies, it should work then. Apparently there's something you can buy that flips the focus, but I can't seem to figure out what its called or where to get them from.
  19. Hello, Will a Celestron 80ED APO Premium Refractor be able to have an Olympus E-400 with Celestron T-mount attached to it and still achieve focus. I ask this because I have an 8inch Starhopper OTA and the Olympus doesn't focus with it, I have found that practically all the focusing unit needs to be removed to achieve focus........so I am hoping that with the 80ED being a refractor then it should focus a lot easier. p.s. how many does FLO have left?
  20. I stayed in the warmth of my lovely house and did some widefield imaging. The moon was a little too bright.........ha ha
  21. Wouldn't you hit the side of the hole due to the Coriolis effect? It's hypothetical!
  22. it should be able to take it...........just don't strain the balance bar with the counter weights.
  23. yeh, it would make a good guide scope. The contrast is really quite good on the 4SE.......so tracking should be okay. i wouldn't use it for imaging, the high focal ratio means DSO's are really faint. All you need for a guide scope is somehting that can trail a star......this will do it.
  24. I second the above, never leave it on, I did it once! Also never leave your powertank running!
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