+RonC Posted February 3, 2012 Share Posted February 3, 2012 (edited) I want a 6-7mm EP to use for planets on my 200PDS, Short listed are: Celestron X-cel 7mm at £70 Meade Ser 5000 6.5mm at £80 I already have a Baader 8mm as part of the zoom and find 5mm is too much if the seeing is less than perfect! Also looking at the BST EP's? Any comments or help would be good! PS: Budget is for under £100! Edited February 3, 2012 by Ron Clarke Link to comment Share on other sites More sharing options...
BAZ Posted February 3, 2012 Share Posted February 3, 2012 Hi Ron, Sky's the Limit do a few others now, I have been mulling over a 4mm planetary, I think the £39 pound one would do nicely. http://www.skysthelimit.org.uk/telescope%20eyepieces.html Link to comment Share on other sites More sharing options...
+RonC Posted February 3, 2012 Author Share Posted February 3, 2012 I have checked the BST's good value but I think you get what you pay for? Still undecided!! Link to comment Share on other sites More sharing options...
Brantuk Posted February 3, 2012 Share Posted February 3, 2012 The Radians are very nice at 5mm, 6mm and 8mm. Especially on planets. You can try one of we get to a meeting together Ron. You can get them s/h in great condition for around £100 and last a lifetime on most scopes Link to comment Share on other sites More sharing options...
+RonC Posted February 3, 2012 Author Share Posted February 3, 2012 Sounds good Kim, I have a 5mm Planetary from the same dealer, nice ep but I need perfect seeing conditions to use it, so not very often! Link to comment Share on other sites More sharing options...
Brantuk Posted February 3, 2012 Share Posted February 3, 2012 At 1m focal length and f-5 you need a good'ish eyepiece cos (being fast) the scope ain't so forgiving on poor quality ep's. 5mm will give you 200x magnification - I work mostly round 150x to 180x cos better seeing is rare. The 5mm Radian does come out sometimes though and when it does it's well worth it. Hopefuly we'll get a good clear transparent meeting soon and you can try it Link to comment Share on other sites More sharing options...
Doc Posted February 3, 2012 Share Posted February 3, 2012 F5 is so demanding on eyepieces, if money is no object then 6mm Ethos, but if you are like most of us then a 6mm Radian or a 7mm UWAN I have the UWAN and it's a great eyepiece. Link to comment Share on other sites More sharing options...
+RonC Posted February 4, 2012 Author Share Posted February 4, 2012 Thought I'd give the 8mm BST a try, so I've ordered one. For the money it's worth a try and save up for a top of the range jobby later!! Link to comment Share on other sites More sharing options...
Brantuk Posted February 4, 2012 Share Posted February 4, 2012 BST's I understand are good though I never tried one myself. Not heard a bad thing about them and deffo better than supplied ep's. Nice one Ron Link to comment Share on other sites More sharing options...
Guest Bryndalf Posted February 10, 2012 Share Posted February 10, 2012 Ron, let us know how you get on with the BST 8mm. Link to comment Share on other sites More sharing options...
Daz Type-R Posted February 10, 2012 Share Posted February 10, 2012 Sorry to jump in on this thread but you say an F5 scope is so demanding on good eyepieces, is there much difference between and F5 and a F6 scope? Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted February 10, 2012 Share Posted February 10, 2012 Hi Darren, You are on the 'cusp' !! fast usually F5 or less, slow F6 and higher. my guess is that you would be hard pushed to see the difference unless in an achromatic refractor where you might get a slight increase in CA (chromatic aberration). Link to comment Share on other sites More sharing options...
Daz Type-R Posted February 10, 2012 Share Posted February 10, 2012 Hi Darren, You are on the 'cusp' !! fast usually F5 or less, slow F6 and higher. my guess is that you would be hard pushed to see the difference unless in an achromatic refractor where you might get a slight increase in CA (chromatic aberration). Awesome, I was hoping you would say something like that, mine being an F6, was getting a bit worried I would have to fork out some real cash on Televues! Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted February 10, 2012 Share Posted February 10, 2012 That will inevitably come later ! Link to comment Share on other sites More sharing options...
+RonC Posted February 10, 2012 Author Share Posted February 10, 2012 (edited) Hi Bryn, enjoyed using the BST 8mm the other night (out of the conservatory door!) Good on Mars and the Moon and comparable with my Baader zoom! So much so I've ordered an 15mm BST and if thats ok I'll get the 12mm to make a set up. Also ordered my Baader Collimator for next week! Edited February 10, 2012 by Ron Clarke Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted February 10, 2012 Share Posted February 10, 2012 Hi Ron, We must have enough BST 8mm's now to sell back to Alan if he gets short of stock !! Link to comment Share on other sites More sharing options...
+RonC Posted February 10, 2012 Author Share Posted February 10, 2012 Agreed!! and maybe 12 & 15mm as well soon! Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted February 10, 2012 Share Posted February 10, 2012 If they are as well made as the 8mm they will be great as well.! Link to comment Share on other sites More sharing options...
+RonC Posted February 10, 2012 Author Share Posted February 10, 2012 I will let you know ! (15mm anyway!) Link to comment Share on other sites More sharing options...
Guest Bryndalf Posted February 16, 2012 Share Posted February 16, 2012 Thanks Ron. Lets hope hes still got one in stock for me Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now