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hms_furious

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Posts posted by hms_furious

  1. Hopefully the photo is clear enough. This is a 150i so the primary is NOT collimateable. 

    My daughter moved the secondary quite considerably to the point it was more a sausage than a circle so it has been a learning curve!

    I think I have the secondary in a nice circle and centred. The doughnut on the primary is in the centre of the collimating eyepiece. 

    Does it all look ok? The bit that is niggling is the bottom seems to have quite a wide gap but moving it up or down takes the centre off of the doughnut.

    What do I do!? Having dreaded doing this and it taking much longer than no doubt it should, I have no idea anymore! 

    Thanks all, again.

    Collie.png

  2. Hi all, 

    I have a 150p and a 127mak. I have a nice focuser in the 150 and a 2" diagonal on the 127mak.

    I have the baader 8-24 zoom and the accompanying Barlow. 

    I also have a baader solar filter for the mak and a 1.25 baader neodymium filter. 

    How do I calculate what mm eyepiece equals what magnification each scope and also what it's maximum useful magnification is? 

    Given the equipment, what eyepieces do you also think would be useful to get the most from these scopes? 

    Anything else you think would be useful? 

  3. So, todays stupid question is regarding focuser placement on a newt

    Is there a correct placing for the focuser when viewing? If I put it vertical the image is sideways if I rotate the tube so it is horizontal then it is upside down (which I know is the correct way it should be) but then it feels a particularly awkward viewing position to be in. Is it me?

  4. I got the Barlow when I purchased the baader zoom and haven't had cause to use it as yet. Whilst it all screws together nicely it does seem to extrude somewhat out of the focuser. Which leads to the embarrassing questions. I am doing it right?! First picture is how it seems to be attached and the second is on the focuser. 

    If I am, do I then simply just screw any filters I want to use onto the bottom? 

    Thanks 

    IMG_20210309_211807.jpg

    IMG_20210309_211836.jpg

  5. After prioritising eye pieces, dew shields etc I am finally looking at the upgrades for the Diagonal and getting a filter for my 127 mak.

    There are 4 what look like decent diagonals at less than £100...

    https://www.firstlightoptics.com/diagonals/SWdiagonal-20967.html

    https://www.firstlightoptics.com/diagonals/stellamira-1-25-90-di-electric-diagonal.html

    https://www.firstlightoptics.com/diagonals/william-optics-125-dura-bright-dielectric-diagonal.html

    https://www.firstlightoptics.com/diagonals/takahashi-125-diagonal.html

    Are any of them better than the others for this scope?

    Was also looking at the Baader filter.

    https://www.firstlightoptics.com/light-pollution-reduction/baader-neodymium-filter.html

    Should I got for this one or again, anything better?

    Moon and planetary are what I am aiming for to the scopes strengths.

    Thanks :)

     

  6.  

    Hi all, I am looking at the above that Solar B has for sale but I am struggling to find a good and reasonably priced set of adaptors to make it work with my 127 mak. It is a new one so currently there is a thread on the OTA and then a straight bit with a nut that attaches the cheapo diagonal unit itself onto.

    Any pointer would be really appreciated. Thanks

  7. 18 minutes ago, Tomatobro said:

    This is a personal view but I hate spending the same money twice. An Astrozap heated extended dew shield from Flo will work first time and every time. Yes its double the cost but it has a zero risk attached. The corrector on the front of the Mak is very prone to dewing so the alternative might but there again might not be enough for extended viewing sessions.

    That's true but then don't you also need a power supply (you can use a USB power bank with the coowoo) and then also need a heat controller for it too which adds more to the price?

  8. I have a 127 mak and I am getting ready for the dew season. I was thinking a heater may be better than the passive shield and I saw someone mention one of these in an earlier thread.

    https://www.amazon.co.uk/COOWOO-Temperature-Regulator-Universal-Telescopic/dp/B07MHGW4DG/ref=sr_1_3?dchild=1&keywords=coowoo+dew&qid=1597740390&sr=8-3

    I know it is a little shorter than the circumference of a 127 but a  a couple of bits of heavy duty velcro should fix that.

    Two questions

    1) is a dew heater all you need?

    2) where should it be located on the scope? I have seen it about 6 or so inches away from the front lens.

    Anything else I should consider?

    Thanks again all

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