1st time here
Posted 18 July 2013 - 08:43 PM
I just purchased my first Orion xt-8 dob classic been using a http://www.opticspla...4-luminova.html for the past 11 yrs so pretty excited about this purchase except the broken finder scope and 4mm plossel eye peice that came with it. So Orion was tryin to sale me this item
Is this a good purchase for a 1st time buyer ?
(within my budget)I've had the lens from the tasco that I've been using the last few days are not the best of lens also I'll be buying there 9x50 finder scope because I would like to view the moon of course but I've only been able to view planets on the tasco I live in the city so there is light pollution but also plan on going some where high and dark to see a lot more than I have even been able to see so any insight would be appreciated ty for your time
Posted 18 July 2013 - 09:16 PM
Congrats on the XT8, that is a great scope.. My 8" Dob was my 4th Telescope I picked up and that wasn't to long ago. I use mine for DSO but I also check out the moon and planets as well. I also picked up a TelRad for my Dob its been a very good upgrade I must say.
Posted 18 July 2013 - 09:17 PM
Posted 18 July 2013 - 10:41 PM
I bought this scope off ebay fer a steal of a price but the lister forgot to mention that the finder was missing the plastic lens in order to see the dot and the tightening bracket was broken since this is a big step up from my tasco question is there any other (kit w/o filters) I only ask this due to I have not had the luxury of owning a new to me scope mine are hand me downs and would like to have some new lens since this DOB will last me till I can afford a 12"
I'm looking to purchase some sorta lens set tomorrow but not sold to which (brand)
The Orion dealer wants to sale me there best item but I have been told (filters) would prob never get used. I do not know this to be true or not only filter I've ever own was a green for the moon and never used it
once again ty for the words of wisdom and help
Posted 18 July 2013 - 11:39 PM
I would suggest that you consider looking at purchasing 2 or 3 decent quality eyepieces instead of a kit. Generally they contain eyepieces that you would not use due too some being too high of magnification for your scope or average seeing conditions. Maybe consider eyepieces that would give you a low, medium and high power ranges. Something like 24 or 25mm for low power; 13 to 17mm for mid powers and 8 to 10mm for high power viewing and purchase a decent 2X Barlow that will basically double each of your eyepieces. To view certain types of nebulae an 1.25 inch OIII filter or UHC filter works really well. I like the 8x50 or 9x50 RACI finder scope on my dob and refractor. And as some one has already mentioned, a Telrad is a very good investment to use in conjunction with your finder scope.
Good luck and clear skies!
Posted 18 July 2013 - 11:43 PM
Posted 19 July 2013 - 07:20 AM
... I will say I was really glad I purchased an eyepiece kit similar to the Orion (mine was Celestron) ...
If you decide on purchasing an eyepiece kit ... and I think they represent an excellent value ... go with the Celestron kit. Pick one up at Hayneedle for $135 with free shipping:
Celestron Eyepiece Kit
Posted 19 July 2013 - 07:32 AM
Posted 19 July 2013 - 09:26 AM
Posted 19 July 2013 - 10:54 AM
I recently acquired a second kit with a used scope I bought and gave it to my dad. He had a couple plossls and an Orion Expanse that we gave him for Christmas a couple years ago...he really likes the Expanse. And he is buying my XT8i this fall (upgrading from his XT6i). I imagine this kit along with the Expanse he has will be all he really uses...though we might give him another Expanse as a gift sometime.
The only downfall with the plossls is that at higher magnification, the smaller field of view means you don't have long before you have to move the scope...and the limited eye relief can get annoying. For those reasons, I was very pleased upgrading to the Explore Scientific 82 degree EPs for use with the 8" dob...I got an 11mm and 6.7mm and really enjoy them. The Orion Expanse EPs are nice, too, if you're watching your budget.
Posted 19 July 2013 - 11:14 AM
Posted 19 July 2013 - 11:30 AM
Posted 19 July 2013 - 02:12 PM
I don't go mobile anymore. Just ain't no place anymore one can get away from street lights. We are a scared society. So I'm on a concrete pier with a wedge and I look at things. I think the street lights just make my pupils go small. Once under the shroud, I get dark.
Posted 26 July 2013 - 04:37 PM
Posted 26 July 2013 - 08:04 PM
If there's currently too much 'stiction' in the azimuth movement, there's a trick you can do with circular cutouts from plastic milk jugs. I can't remember exactly how many--three, I think--but you do them in 5-6 inch diameter, cut a hole in the centers, and stack them on the center axis between the ground board and the mirror box. The idea is to redistribute just a bit of the weight off the stock contact pads. I did it with my 4.5" classic Orion dob, worked like a charm.
For confirmation of this, exact details, and other ideas, do some searching on the CN forums for DIY improvements to Chinese dobs, there are some great 'hacks' out there.
Posted 27 July 2013 - 10:48 AM
Posted 27 July 2013 - 11:07 AM
thnx will give that a shot still want to eliminate the triangle bottom board thou will be today's project
I am curious why you want to eliminate the triangle bottom board. Structurally, I see no advantage to a circular board, the Teflon pads should sit right on top of the feet so the load is directly transferred.
Posted 27 July 2013 - 05:47 PM
Posted 27 July 2013 - 07:44 PM