I paired this 5x 4-Element Barlow Lens with an Orion 8945 SkyQuest XT8 Classic Dobsonian Telescope and all I see is black am i doing something wrong
638342
It could be you need an extention for eyepiece or your eye isn't cloce enough to eyepiece,or you are useing an eyepiece that has too short of a focal length. Try a 32mm or 36mm. If that works, work down in focal length. I tried a 6mm and saw a blure. Every telescope has a max magnification. The 8" with a 1200mm focal length maxes out at 450/460 power. With 5x barlow max 15mm yields 400x and 13mm yields 461x.
2026022
It's really not critical to have a Barlow lens but it's nice. When I first got my telescope, I just used the lens take came with it. Later on, I purchased a Barlow lens and some filters. With these items, I was able to see better details. Now I wish I had a bigger telescope. I guess just like any other hobby it depends on how much can you afford to spend. You might want to try to hook up with a astronomy group some night and see for yourself before you decide.
1842191
Hello Patty, Honestly I dont know. It might have to do with the total focal lenght, I ran into a problem with attaching a reducer then the diagonal then the bifocal then the eyepiece, and i could not focus properly. You best bet is to call Celestron on Monday, sorry I could not help more, Jim
234160
I'm not sure i understand. The T-adapter provides threads to attach a standard camera body to the telescope, but unless the adapter is also a barlow lens, there is no magnifying lens in that configuration. The orion USB eyepiece fits into the standard 1.25 focuser, where an eyepiece would be. If you want magnification (which you will need to get the most out of the pixels), a barlow lens is most appropriate/easiest way to do this. The orion eyepiece won't fit into a t-adapter.
2061053
When you apply the corrector you will have to dramatically change your focus setting. Because of this, I recommend not attaching the 2" Barlow lens initially. Then focus your telescope with only the 23 mm on a bright object. After that attach the Barlow and you may have to focus again.
725118
The included Barlow is a shorty and barlows in general are able to work in any telescope. If you insert the shorty barlow between the focuser and the diagonal you will get a slightly higher magnification than if you insert it between the diagonal and the eyepiece. This gives reflector telescope users a bonus. This particular kit has good budget-priced accessories that work pretty well for a beginner, but considering the old saying "you get what you pay for" don't expect these items to be of high quality.
1310868
Saturn's rings are always a treat! Glad you saw them. A 2x barlow and 4mm eyepiece will give you 200x on this scope, which is about the theoretical maximum usable magnification for a 100mm aperture scope like this one (about 50x/25mm). But in my experience with these smaller scopes, the image is rather poor at maximum magnification; you can see something, but very dim and very grainy, for instance. For my eyes, the max usable magnification is closer to 40x/25mm..... I think it's fun to use the max magnification (esp. on the Moon!) But I usually get the most satisfactory viewing at a lower power. Enjoy your telescope! Saturn's rings are always a treat! Glad you saw them. A 2x barlow and 4mm eyepiece will give you 200x on this scope, which is about the theoretical maximum usable magnification for a 100mm aperture scope like this one (about 50x/25mm). But in my experience with these smaller scopes, the image is rather poor at maximum magnification; you can see something, but very dim and very grainy, for instance. For my eyes, the max usable magnification is closer to 40x/25mm..... I think it's fun to use the max magnification (esp. on the Moon!) But I usually get the most satisfactory viewing at a lower... » Read More Saturn's rings are always a treat! Glad you saw them. A 2x barlow and 4mm eyepiece will give you 200x on this scope, which is about the theoretical maximum usable magnification for a 100mm aperture scope like this one (about 50x/25mm). But in my experience with these smaller scopes, the image is rather poor at maximum magnification; you can see something, but very dim and very grainy, for instance. For my eyes, the max usable magnification is closer to 40x/25mm..... I think it's fun to use the max magnification (esp. on the Moon!) But I usually get the most satisfactory viewing at a lower power. Enjoy your telescope! « Show Less
212404
In my opinion, this scope was very poor. I had problems with assembly, and the scope did not work as described. My recommendation is you return it and put that money towards a better starwatcher. We were looking so forward to seeing the night sky, and were unable to have the telescope work. I hope this was helpful. In my opinion, the pieces not working as expected, is not worth replacing parts. I hope you can find one that will work for you. I, and other Amazon customers had dissatisfactory experiences when using this particular model. Happy new year!
2269847
At first blush, it appears your Celestron has an eye piece of .98 inches in diameter. The Barlow you are looking at is designed to fit an eye piece of 1.25 inches. If you can find an adapter possible. But may not be the purchase for you.
2090400
What type of scope were you using it on? My DSLR comes into perfect focus. You really do not want to use this to image Jupiter anyway - you should use a 4X barlow, to make it bigger, not a focal reducer to make it smaller.
282766
Sorry, I don't know. I only have the basic Orion telescope, and that is the limit of my knowledge.JBK
1270962
There is no magnification with this T-Adapter is good for prime focus....where your camera is receiving light directly from the telescope...the "magnification" will be from the scope itself and no eyepieces...if you want magnification...you need a T adapter that will allow for use with a barlow lens...which is mainly used for planets...as deep sky objects are far too big
1069996
it may not be a issue of focus it could be an issue of filters, to view planets yes you will need good lenes and a barlow adapter but there are color filters that enhance what you are looking at, I suggest you search the web for Planetary filters to see which filter is best for the planet(s) you are trying to view. Clear Skies :-)
2093622
I bought one of these back for the Lunar eclipse and when I looked through the eye piece, nothing. After playing around with it for 20, 30 minutes I did get to look at the moon, but I had a pair of binoculars that gave me the same results so I sent it back for a full refund. Hope this helps
983708
This Should work fine. I know I have heard that the Barlow might not have enough travel to focus with some scopes. This can be fixed by placing the 2x Barlow directly into the focuser and then attaching the diagonal to the barlow. This small kit is a great value&lt; id say buy it. I have it and im happy with everything in it except the moon filter. The moon filter is plastic and it turns the moon green but it still works. The other filters are high quality and individually they cost $19.99. The 6mm Eyepiece is great and will be plenty powerful. to bring out planetary detail
2078311
I can't tell exactly for sure from the internet and I don't own this scope. But if your eyepieces for this scope are 1.25 inch diameter then this barlow lens will fit your scope. This scope does seem like a low power scope with theoretical maxmimum magnification of 165X, but understand your desire to view objects at double the magnification that your eyepieces provide. You could also opt for a 4mm eyepiece assuming that fits your scope that will also increase your magnifcation to 400mm/4mm = 100 power, which may be cheaper than the barlow lens and meet your objective. I think celestron sells 4mm eyepieces you just have to make sure you get the right diameter eyepiece, again it seems like your scope takes 1.25 inch eyepieces but I can't be entirely sure with the time I have availabe to investigate this inquiry. Good luck and happy viewing.
829544
I have tried some night sky work with this lens. Set your ISO low and shoot stopped down at max. Set your camera to not flip the mirror and use a telescope clock drive system in a low light pollution area. Works well if you do trial and error exposures.