Explore Scientific 8" f/3.8 Newtonian With Carbon Fiber Tube OTA #N208CF


Availability: In stock

Are you looking for a telescope that is large, yet light weight?  Are you on the search for a wide field/fast instrument?  Do you want your bank account to be happy about your purchase?  I think you have found your instrument....
Our Product #: ES8NCF
Explore Scientific Product #: N208CF-01

Product Description

The Explore Scientific Newtonian 208mm f/3.9 with Carbon Fiber Tube; 812mm focal length; 97% EMD Coatings; No Tool Secondary Collimation;  ES Finder Scope Base ONLY installed on scope and Soft Carrying Case. Cradle Rings with Handle and Vixen-Style Dovetail. Weighs 19.6 lbs. (Finder Scope and HR Coma Corrector NOT Included).

The Explore Scientific Carbon Fiber Newtonian allows this larger primary mirror, with faster aperture ratio compared to the usual 8" f/4 for deeper shots with the same exposure time. The completely redesigned "click-fix" secondary mirror mechanism ensures easy and optimal collimation. The large 80mm secondary mirror offers optimal field illumination. This amazing scope includes a high quality 2" focuser with 10:1 reduction; cradle rings with vixen style dovetail rail and carrying handle with option for mounting a camera or other accessory. The Newtonian Carbon Fiber scope also stands out with 1/4 lighter weight compared to the aluminum Bresser version and a virtually nonexistent focus drift during long exposures.

Tech Details

Aperture 8"
Focal Length 812mm
Focal Ratio f/3.8
Weight 19.6


Review by:
I've been using this scope since January 2016 and have since added two other scopes to my staple. This one is still my favorite. It's extremely light and rides well on my AZ-EQ5 (30 lb. payload limit) even with a cooled astrocam, filter wheel, guide scope, guide cam and coma corrector. Even 900 second guided subs on a medium payload mount are easy on a windless night. The focal length is just right for larger galaxies as well as most nebulae (I've even taken some decent shots of Jupiter with it) and - unless you've got a RASA, Hyperstar or Epsilon - the speed can't be beat. I've used it to image some seriously dim targets such as CTB1, Purgathofer-Weinberger 1 (PuWe1) and Fererro 6 (Fe6) and it's given me great results. It also pairs really well with the Explore Scientific HR Coma Corrector. I would suggest one modification though: Add an aperture mask to cover the mirror clips. I made one out of black foam board and it's helped to give me nice, sharp diffraction spikes without any odd "flaring" around bright stars. (Posted on 12/16/2018)
Review by:
I bought this scope to do Astrophotography and have been very happy with it. The carbon fiber tube makes this scope easy to mount. The focuser seems to be of good quality Works great with the ES coma corrector. Once I got the spacing right I have round stars all the way to the edge. Collimation can be a little finicky but that’s what you get with fast optics. (Posted on 10/26/2018)
How do you rate this product? *