|
|
- Eyepiece filter set for 1.25-inch eyepieces
- Increases contrast and definition, while reducing eye fatigue
- Full 26-millimeter clear aperture
- Double-threaded for stacked operation
- Kit includes 23A Light Red, 38A Blue, 58 Green, and Neutral Density-50
|
List
Price: $33.99 |
|
|
|
|
 |
|
|
|
|
| |
| Product Description |
| Celestron offers four convenient filter sets, which contain four different filters per set. Not only are these highly useful filter combinations, but they also offer an economical way to add versatility to your filter collection.Celestron's filters are made of high quality, solid plane parallel glass with excellent homogeneity. They're anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit Celestron's, and most other manufacturer's, 1ΒΌ" eyepieces, and offer a full 26mm clear aperture. #23A Light Red 25% T [Series 3] All observing information for this filter is the same as that given for the #25 filter, with the exception of the following: Mars - Reduces light from blue and green areas which darkens the maria, oases and canal markings, while lightening the orange-hued desert regions. Sharpens the boundaries of yellow dust clouds. Comets - Improves definition of comet dust tails. #38A Blue 17% T [Series 3] Moon - Enhance lunar detail. Jupiter - Enhance the boundaries between the reddish belts and adjacent bright zones. Useful for viewing the Great Red Spot. Mars - Very useful during the violet clearing. Helpful in studying surface features and polar caps. Mercury - Improve observation of dusky surface markings at twilight, when the planet is near the horizon. Saturn - Enhance low-contrast features between the belts and zones. Venus - Useful for increased contrast of dark shadings in upper Venusian cloud |
| | | |
| Optics Reviews Writed by Customer
|
|
