Image of the day

From the
ATWB Customer Gallery

NGC 2170

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: byung suck shin

July 24, 2002 10:28 PM Forum: Celestron

Help! I can't focusing after using focal reducer

Posted By byung suck shin

hello ~

I have an celestron 9.25 SCT..
& many eyepiece( 3mm radian, 7mm nagler.
19mm panoptic, ~ 55mm plossl : all-Televeue)

I bought focal reducer( Celestron f6.3) one week ago.
I can't focusing star connect with reducer except 55mm plossl(I see central ill defined dot (maybe due to central obstruction ?? )
when other highter power eyepieces ( 32mm. 19mm .. ) was connected,I can't focusing ( I was full rotating counterclockwise )

so .. I send mail to celestron ,,
reply was " because you use meade diagonal
( too far from focal reducer than celestron diagonal!!)

I change the 2" diagonal to celestron yesterday!!

but the problem in remained ,, I can't focusing ..
what is problem ???
my friend told me " you should move the secondary mirror
forward~~ ,, I can't do that !! )

help, me please...
I want more rich field !!

BS shin

September 29, 2002 07:36 AM Forum: Celestron

nexstar 80GT with 4 inch ED refractor??

Posted By byung suck shin

Hello~~

I have 9.25 SCT on losandy GM- 8
& 4 inch ED refractor on Altazimuth Mount
( refractor is very light ..only 2.7kg)

I want to have compact or portable GOTO system

I think about Nexstar 80 GT . !!
because I plan to replace the 4 inch ED refractor on 80GT
with adjastable adapter
& I plan to sell the original 80mm scope with mount !!!

How do you think about that ??

I think it is better than buy the new SCT(Nexstar 5i )

thank you
BS shin