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 replace 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 according 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!
Why we love the Sky-Watcher Esprit 150ED Reducer/Flattener (.77x) (S20215)
Product Description
Specifications
- 36mm fully illuminated field, compatible with both APS-C and full frame sensors
- 90mm back-focus (55mm when back focus spacer and M48 ring installed)
- Drops f/ratio from native f/7 (1050mm) to f/5.4 (810mm)
- Reduces exposure time by 68% compared to native f/7
- 2.54 x 1.7-degree field of view when used with a full frame camera
- 1.66 x 1.11-degree field of view when used with APS-C crop sensor
- Includes reducer, metal thread-on caps, back focus spacer and M48 thread adapter
- Built-in 2" filter cell for mounting filters into the light path