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Stephen Greenfield

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19 Good
  1. Got mine from ebay, pack off four for a few quid
  2. Just finished one of these.used the ota mount rings and attached round bread boards to it for alt bearings, covered them in kitchen worktop edging (stippled one) tyen teflon strips on the cradle for bearing surface. Used LP and teflon furnitaure moving pads for the azimuth bearings.
  3. Pics will be posted when made less ugly lol. Added an eyepiece holder and canding some of the bolts and needs a paint. BUt none the less, managed to get first light last night and despite a nearly full moon and its proximity to orion was able to get some views of the orion nebula and make out detail. also managed to get some views of jupiter and was very impressed. As much as it pains me to say it as a man , size does matter . Still some minor balance problems when switching from a 2 inch to a 1 1/4 inch eye piece , however have invested in some heavy magnets to use on the OTA to remedy this. Also successfuly collimated for the first time and easier than i thought now have to sort out the focuser to smooth it out .
  4. Looks a very familiar list I bought a non celestron focal reducer and works fine Also bought revelation astro (I think) focuser , cheaper and works fine. Didn't know about the firmware improvement any link of how I do that
  5. Some great videos, may be a silly question but I have the dual speed crayford focuser with the mod still work
  6. Now i have built the mount for the scope, getting ready to use the thing . Maybe i was spoilt by the focuser on my 80mm equinox, but the 2 speed focuser on the newt could hardly be described as silky . Anyone got any ideas as not too keen on forking out for a new one
  7. Well, finally had some time to myself and so got on with the project. Used mixture of 18mm mdf and ply for the construction. Used round 4cm thick boards for the alt bearings attached to the scope rings then they were wrapped in laminate strip ( had some surface texture) on Teflon sheet. Base bearing made from an LP record and Teflon furniture moving pads. Then used 3 ice hockey pucks for the feet. Few bits and pieces like handles left but for the most part done , it's ugly , it's big and heavy bit its mne and looking forward to seeing through the scope, so no doubt cloudy for a month
  8. I am a relative newbie, and was in a similar situation to use with roughly the same budget. A bit further down the line now perhaps I can give a little perspective as I have been through a list of scopes of all types. Ok . FIrst thing is decide what you want to look at. is it Stars/ DSO/ PLanets etc or a little of anything. Secondly if seeing is not perfect near you then consider portability in the equation , if you are able to drive to a darker site then having a portable scope you will use is more important than having a massive aperture scope you dont use much. Certainly when i was starting out imaging was on my list of wants, but as anyone here will tell you planetary imaging with webcam is best and cheapest options before even considering DSO's through a scope because then mount is paramount , and they cost a lot. I have a SCT, Large and middle sized refractors , 12 inch DOb and had a 80mm apo, and if I started again I would honestly go for a non Goto tracking Dob such as the skywatcher ones that you can collapse down for transport and storage. That will give you change from your £1000 to invest in things such as decent eyepieces and otehr bits and bobs you will need
  9. Got mine recently and only got to do a few quick pictures of the orion nebula and horsehead. On the whole very happy with it, have enclosed a pic of what mine is sitting on top of :-)
  10. Looks great and some nice detail at the core, well done!. Did some last night on the astrotrac but at iso 1600 and a 4 minute sub ended up with burnt out core and noisy picture because of the ISO, will try on 800 tonight weather permitting
  11. well done!!! and yes I know about the swearing as i ended up opening the thing back up a good four times because one of the bl**dy ribbons wasnt perfectly seated, and i need to re-do again at some point to rid the sensor of a dust spec, but it can wait for w hile
  12. For that price definately, i have one in my collection of m42 lenses and it takes some nice widefield shots
  13. Hi, i have this lens and use if for astrophotography, although must say i prefer using my 50mm 1.8 super takumar m42 lens because of the focus is firmer on the super tak.have used it full open and stopped down one or two stops and it is sharper stopped down. Just not a big fan of the focus ring
  14. Well , treated myself to some new toys at xmas and finally managed to get to play with them Skywatcher 120 evostar (2nd hand astro buy and sell) Skywatcher electric focuser Astrotrac Sky vaguely clear this evening so thought would give my astrotrac setup a quick try. Managed to get two3 minutes subs before the clouds, one of orions nebula the other the horsehead, a little noisy and lightpolluted and some moon light chucked in but promissing. Easy to set up , very impressd and looking forward to some great photos. Evostar - as i was bored got the evostar out whilst the astrotrac was doing its thing and had a quick look at the moon and jupiter. Slight fringing on the moon however this was remedied using the baader fringe killer which gave it a slight yellow hue, but overall greatly impressed.tried 32 mm,15mm and 2.5 on the moon, and althought the 2.5 was not terribly usable on jupiter it ws just about acceptable on the moon and if seeing was better it may just be ok. Used the skywatcher electric focuser and found easy to fit and it was excelent in use making the scope a joy to use with minimal vibration during operation, heartily recommended.
  15. All the usual easy checks - is your battery source charged, the cable connected properly and is it working Do you hear the motor when its connected As far as live view goes, if connected to my celestron C8 its isnt great ( I have a 1000d) , make sure youre aperture setting is wide open and shutter time are correct. I tend to use a viewfinder diagonal to check focus , which can be picked up on ebay relatively cheaply, and it has a magnification of 1.6 x on it also and that seems to work ok on the celestron
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