List Price :
$79.95Price : $59.95
Code : B0048JF1JY
* Special discount only for limited time
Product Feature
- Wide field of view enhances views of the night sky through a single lens
- 6-element fully multi-coated optics create sharper images
- Extendable twist-up eyepieces are easier and more comfortable, especially for eyeglass wearers
- No slip, rubber grip ring for secure handling, even in moist conditions
- Parfocal eyepiece require little to no focusing when changing from low to high power
Product Description
The newly enhanced X-Cel LX eyepiece series is what you've been waiting for in a high quality eyepiece for planetary viewing. With a brand new sleek, robust design and a twist-up eye guard, these eyepieces are especially designed for comfort and ease of use. They also have a wide 60° field of view and 6-element fully multi-coated optics for magnificent wide field performance. X-Cel LX eyepieces are parfocal and require little to no focusing when changing from low to high power.
Product Detail
- Size: 12mm
- Color: Black
- Brand: Celestron
- Model: 93424
- Dimensions: 1.75" h x3.50" w x1.75" l,1.00 pounds
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Related Seller :Product Reviews
4 of 4 people found the following review helpful.
Pleasing views and good detail through my 150mm F12 Mak
By eye in the sky
I purchased this eyepiece to bridge a magnification gap that I had with my 150mm F12 Mak, producing 150 power magnification. I am quite pleased with the performance of this eyepiece for its costs. Images are uniform across the field of view from what I can tell. I use this eyepiece quite a lot when observing Jupiter, Saturn, and the moon.
When I have to move my scope around my yard to avoid trees and other viewing obstructions etc...(suburbs), this is one of the four eyepieces I grab and put in my jacket and take with me, the others are my orion expanse 20mm, teleview type 4 nagler 17mm and orion expanse 9mm.
For me this eyepiece seems to work well enough for me to be a litmus test on how good the atmosphere is, if I can bring an image into good quality focus in this eyepiece then I have a steady atmosphere and can then try to use other eyepieces that provide higher magnifications. I know one time I observed Jupiter over a nearby rooftop and I was able to see the heat distortion/disturbance in the air ripple across the face of Jupiter; the plus side of this being this eyepiece was able to capture that effect, the downside of this was that I was done looking at Jupiter from that location that evening.
I am thinking about getting the 9mm version of these to compare it's performance in my 6" F12 Mak to my orion 9mm. Despite my budgetary limitations and constraints this is something that I ponder. I seem to have an very little difficultly getting this 12mm into a sharp focus at 150x, so I wonder if I'd have an easier time with the celestron 9mm than my orion expanse 9mm at 200x.
Although, one thing I did notice when I used this eyepiece with a 6" F5 reflecting tube in conjunction with a 3X barlow lens (to produce ~188x), was that the image brightness seemed to have decreased more than would another eyepiece of the same focal length. I attribute this effect to the many lens elements that are in this eyepiece. Perhaps there is a tradeoff point between image quality and brightness and in 6" aperture scopes this is not far beyond 150 power. I suspect this nuance could be a challenge or more noticeable if you have an even smaller aperture scope.
Also if you don't already know this the formula for eyepiece magnification is (telescope focal length mm) divided by (eyepiece focal length mm). For example an 8" F5 scope will have a focal length of 1000mm, a 15mm eyepiece would provide 1000/15 = 67 power, where a 4mm eyepiece would provide 1000/4 = 250 power. Due to the atmosphere etc, the practical limit of magnification is about 200x, although for me it seems I can go a bit higher when observing the moon (obviously a big bright object). Each scope has a theoretical maximum magnification which is roughly 50 power for every inch of aperture and a minimum magnification is aperture x 3.6, where a 6 inch scope has a minimum magnification of 21.6 or 22 power. Finally according to what I have read (starizona's telescope basics*), doubling the magnification will produce 25% image brightness in the same telescope, which may be more of a factor in smaller aperture scopes. There is some literature on optimal magnification that can be sought out, I will say that I tend to exceed those values a bit since my budget is constrained.
5 of 6 people found the following review helpful.
Very Good Optics in X-Cel LX 12mm eyepiece
By Timothy Frohlick
I tested the Synta/Celestron 12mm 6 element widefield eyepiece on my 150mm F8 Celestron/Synta Refractor. It compared very well to the $330.00 widefield Nagler 7mm eyepiece. Images were sharp to 2 degrees from edge of field. The eyepiece introduced no field distortion. I will try this eyepiece in my 20 inch diameter 2000mm focal length Newtonian soon. Chinese eyepieces rock. Buy this eyepiece and have a good time. The views of M42 were outstanding--six stars in the Trapezium with 5/10 atmosphere stability.
0 of 0 people found the following review helpful.
Works good, but it's tough to focus
By Roger
The glass is good and so is the build, perhaps it's just my telescope or dial. I find it difficult to focus especially if the star is not centered. So check to make sure your telescope is clean, focusing knob is clean and lubricated.
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