Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
Stress Free, Secure Transactions
You can trust purchasing and delivery with All-Star Telescope. All of our transactions are 100% secure and Level 1 PCI DSS compliant thanks to Shopify's ShopPay platform. For additional protection, we insure 100% of the value of every shipment we make. If it get's lost during shipment, we replace it. If it gets damaged during shipment, we repalce it. We make sure your product arrives exactly as you would expect it to; we promise.
We also ensure privacy protection. We never keep any of your credit card information on file and any of your personal data is stored accordign to our policies.
30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
Price Match Promise
Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
Description
This Coronado 70mm F/5.7 refractor is equipped with a double stacked set of 60mm external hydrogen-alpha (H-α) filters and features a <0.5Ã… bandpass with a 10mm blocking filter included. What makes the SM3 standout? Read on!
It has a new two-speed 2" rack & pinion focuser with both coarse and fine focus controls allowing the user to get a more precise focus, critical for both solar imaging and visual observing. Additionally, the SM3 70mm includes external "True" H-α etalon filters giving higher contrast views and sharper features compared with models using smaller internal H-α etalon designs. Experience darker backgrounds, sharper features, and higher contrast.
Also includes Coronado's patented RichView tuning allowing direct tuning of the primary etalon filter. The patented RichView tuning technology provides additional tuning range and an overall better way of adjusting the filters bandpass. Now you can tune for the highest contrast views of your favorite solar features without sacrificing image quality.
This Double Stacked model (<0.5Ã… bandpass) include two "True" external etalon filters. One etalon filter equipped with our patented RichView tuner and second etalon with tip-tilt tuning using Coronado's T-Max tuner. Whether you are focusing on the solar edge or surface features in the chromosphere, this is the solar scope for you. Since both etalon filters are now external to the telescope, you can easily remove both filters and rear blocking filter diagonal to use the scope as a normal refractor for night time astronomy. It's like having two scopes in one!
This very high quality 70mm solar telescope features an 400mm focal length, f/5.7 focal ratio, 10mm blocking filter, and 60mm external Hydrogen-alpha Etalon double-stack with T-max Tuner. Includes mounting rings, Cemax 18mm eyepiece, Sol Ranger solar finder and black & gold aluminum hard carry case.
Warranty note: Limited Warranty against defects in materials or workmanship for five years from date of purchase. This warranty is provided by Meade for the benefit of the original retail purchaser only. For complete warranty details contact Meade at 800-626-3233.
Quick Overview
- Fully integrated 70mm f/5.7 H-alpha telescope
- 400mm focal length
- Includes Coronado's patented RichView tuning system
- Sol Ranger viewfinder, and 10mm blocking filter
- Double-stack for <0.5Å bandpass
- Black and gold hard carry case (dimensions: 26.5" x 8.66" x 8.66")
Specifications
| Best for viewing | Solar |
| User level | Advanced |
| Optical design | Refractor |
| Optical diameter | 70mm |
| Focal length | 400mm |
| Focal rati | f/5.7 |
| Eyepieces | Cemax 18.0mm (1.25") |
| Magnification with included eyepieces | 22x |
| Resolving power | 1.66*sec |
| Optical quality | Diffraction limited |
| Finder scope | Sol ranger |
| Focuser | 2" dual-speed Rack-and-pinion |
| Diagonal degrees | 1.25" 90° Blocking Filter Blocking Filter |
| Mount type | Optical Tube without Mount |
| Tube material | Aluminum |
| Length of optical tube | 19.3 in. |
| T-max tuner | Yes |
| Additional included accessories |
|
| Other features |
|
| Warranty | Five year |
