 NexImage FAQs
- How does NexImage Work?
- Ads claim NexImage outperforms CCD cameras worth thousands of dollars. How is this possible?
- What can I take images of ?
- What is the magnification of my telescope when the NexImage camera is in the eyepeice barrel?
- How can I purchase NexImage?
- What comes in the NexImage Kit?
How does NexImage Work?
NexImage utilizes a CCD imaging chip to capture streaming video of any solar system object. This video can easily be viewed as hundreds of individual images (frames) that can be digitally stacked to significantly reduce the electric “noise” inherent in video chips and bring out the unseen fine detail (signal) hidden with in your image.
The NexImage camera takes advantage of the fact that the signal to noise ratio of your stacked composite image is proportional to the square root of the number of frames combined. This means that stacking as few as 16 frames will reduce the grainy noise of the composite image by 4 times. While stacking as many 1600 frames will improve the image by 40 times! However, stacking the individual frames is only half the power of the NexImage imager.
With the included software package, each individual frame is analyzed for quality to filter out those frames most affected (blurred) by poor atmospheric “seeing”. This form of after-the-fact adaptive optics, leaves only the sharpest, clearest frames to be stacked and aligned into a high quality image.
Ads claim NexImage outperforms CCD cameras worth thousands of dollars. How is this possible?
Since NexImage uses a video chip capable of taking continuous video of solar systems objects it doesn't require expensive fans or cooling devices used by expensive CCD cameras. Instead, NexImage uses software to remove the effects of dark current and electronic noise to produce sharp planetary images. NexIamge's powerful processing features automatically break images up into individual frames that can be processed and stacked to bring out tremendous detail and reveal final images that will rival those taken with astronomical CCD cameras costing thousands of dollars.
What can I take images of ?
NexImage is designed and optimized for taking images of solar system objects like planets, the moon and sun (with proper solar filter). NexImage can also be used for terrestrial daytime observing using the real time video capture feature.
What is the magnification of my telescope when the NexImage camera is in the eyepeice barrel?
The NexImage camera is equal to the magnification of about a 5mm eyepiece. To determine the magnification of your image when using NexImage, divide the focal length of your telescope (in mm) by 5.
How can I purchase NexImage?
NexImage can be purchased from your local Celestron dealer or an online Celestron dealer. You can find a Celestron dealer in your area using the dealer locater.
What comes in the NexImage Kit?
NexImage comes with the following:
NexImage Camera with 1.25” adapter and USB cable attached
CD-ROM including:
Image capture software – to capture streaming video of image
Image processing software – to align and stack individual frame into one high quality image.
Quick Setup and Tutorial – complete with sample images
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