Orion Starblast 4.5 Imaging OTA
If you're looking for an exceptional telescope for astrophotography that won't cost you big bucks, then check out this affordable alternative. We've optimized the optics of our popular short-focal-length StarBlast 4.5 to give a fully illuminated field of view with the Orion StarShoot Deep-Space Imager and similar small-chip astronomical CCD cameras. The result is a compact imaging telescope with a price that will please the budget-conscious astrophotographer - beginner or expert - and with the performance that will give pricey refractors a run for their money.
- Simply the most affordable astrophotography-optimized telescope available!
- Big 4.5" primary mirror and fast f/4 focal ratio produce stunning images with short exposure times.
- Fully illuminates Orion StarShoot Deep Space Imager and other small-chip CCD cameras
- Compact, lightweight, easily transportable, and works with 1.25" eyepieces for observing
- Offered as an optical tube assembly only, no accessories
With its big 4.5" parabolic mirror and fast f/4 focal ratio, the StarBlast 4.5 Imaging Reflector provides exquisite, high-quality images and it's simply the most affordable astrophotography-optimized scope the market. Unlike refractors, the StarBlast introduces no chromatic aberration with negligible coma. The fast focal ratio also minimizes exposure time and guiding errors.
To achieve 100% illumination with the StarShoot Deep Space Imaging Camera, we slightly widened the secondary mirror and extended the focal point further out in the focuser. The short focal length provides a wide field of view for imaging with small-chip CCD cameras. While the telescope works with standard 1.25" eyepieces (Sirius Plossl recommended) some wide-field eyepieces may require the use of an extension tube to reach focus.
At only 3.7 lbs, the StarBlast doesn't require a heavy mount and it transports easily to your favorite site. The 1.25" focuser accepts 1.25" eyepieces for visual use as well.
The StarBlast 4.5 Imaging Reflector is offered as tube assembly only, with no accessories. One-year limited warranty.
|Name||Orion - Starblast 4.5 Imaging Optical Tube Assembly|
|Highest Useful Magnification||228x|
|Lowest Useful Magnification||16x|
|Optical Coatings||Aluminum & Silicon Dioxide|
|Optical Design||Reflector (Parabolic)-Soda-lime plate|
|Optical Tube Length||18.0 in|
|Optical Tube Weight||3.7 lbs|
|Secondary Mirror Obstruction||47mm|
|Secondary Mirror Obstruction by Area||17%|
|Secondary Mirror Obstruction by Diameter||41%|