The Sky-Watcher Esprit 120mm ED APO Refractor Telescopefrom Sky-Watcher Esprit 120mm ED APO Refractor Telescopeis a 3-element refractor telescope designed for astrophotographers. The optical system features apochromatic extra-low dispersion (ED) glass and fully multicoated optics. A 2-element threaded field-flattener corrects distortion that can occur at the edges of the field of view. This combination makes astrophotographic images clear and sharp, with high-contrast and true-color transmission, from one edge of the field of view to the other. With a focal ratio of f/7, this medium speed telescope is well-suited for astrophotography.

The 2" rack-and-pinion Helinear Track focusing system allows you to bring celestial objects into precise focus with virtually no shift. The focuser features tracks above and below the focus tube. This gives the mechanism two points of contact, keeping focuser level even with a camera mounted on it. The Esprit comes with a 90° star diagonal with dielectric coatings. These coatings provide better than 99% light reflection. The telescope also comes with a 8x50 right-angle erector finderscope, a Canon 48mm T-Ring photo adapter, and a foam-lined aluminum case.

Aperture: 120mm    Focal Length: 840mm, f/7    Apochromatic Extra-Low Dispersion Glass    Fully Multicoated Optics    Threaded 2-Element Field Flattener    2" Helinear Track Focusing System    8x50 Right Angle Erect Image Finderscope    Tube Rings with D-Style Dovetail Bar    2" Diagonal with Dielectric Coatings    Aluminum Foam-Lined Case

• 3-Element Refractor
• Aperture: 120mm
• Focal length: 840mm
• Focal ratio: f/7
• Apochromatic extra-low (ED) dispersion glass
• Fully multicoated optics

• 2" rack-and-pinion Helinear Track focusing system
• Thread-on 2-element field flattener
• 90° star diagonal with dielectric coatings

• Anodized aluminum optical tube assembly
• Tube rings with Celestron CGE-style dovetail bar

Related Questions and Answers

Q: 1. what does it weigh?

A: The Sky-Watcher Evolux 82 ED APO 82mm f/6.45 Refractor Telescope (OTA Only) weighs 6.5 lbs.

Q: 2. What mount is this for? Eq?

A: Would need to know if you want a manual, motorized or GoTo computer mount.

Q: 3. I saw other sites which lists the complete iterms included in this SW package, but not here. So can someone here list all of the item included here? like aluminum box, the 2" - 1.25" eyepiece adaptors, etc, all that?

A: If you look at the right side of the page, you will see a what's in the box listing; In the Box Sky-Watcher Esprit ED APO 100mm f/5.5 Refractor Telescope Canon 48mm T-Ring Photo Adapter Tube Rings with CGE-Style Dovetail Bar Aluminum Foam-Lined Carrying Case Limited 2-Year Warranty

Q: 4. Can this be used as a guidescope with a Celestron RASA8?

A: Yes, there are additional dedicated Dovetail plates for this application, Celestron 8" Accessory Dovetail Bar for 8" RASA OTA B&H # CE8DBRASA8 MFR # 94290

Q: 5. What do I need to use a Nikon 5100 with this telescope?

A: You will need the Sky-Watcher S20301 M48 Camera Adaptor for Nikon BH #SKCAN • MFR #S20301 https://www.bhphotovideo.com/c/product/759388-REG/Sky_Watcher_S20301_S20301_Camera_Adaptor_for.html

Q: 6. Is it f/5.5 before or after the included field flattener?

A: f/ 5.5 is always a consent.

Q: 7. In your preview of the telescope were four pictures of what the telescope sees. What do I need to do to see things that clear. What do I need to be able to photograph what I see thru the telescope eyepiece?

A: Pictures like the ones you see are taken with camera attached directly to the Optical Tube Assembly (the telescope without diagonal or eyepiece). To do this with the EVO72, these are the devices you would need: BH# SKE72EDRCA, SKFRFP80 and the correct SkyWatcher M48 adapter for either Nikon, Canon or Sony E mount camera.

Q: 8. Hello, does the 120 AZ3 come with a dew shield, and if so is it removable?

A: Yes, the Sky-Watcher StarTravel 120mm f/5 AZ Refractor Telescope comes with a non-removable dew shield.

Q: 9. Does this mount have the USB-B on the head of the mount for connecting directly to a computer with USB ?

A: The Sky-Watcher Esprit ED APO 100mm f/5.5 Refractor Telescope BH #SKE100EDAR • MFR #S11410 is an OTA (Optical Tube Assembly) only with Tube Rings with CGE-Style Dovetail Bar. There is no mount.

Q: 10. What is the best tracking stand that works best with this scope?

A: The Sky-Watcher EQ6-R Pro Equatorial GoTo Mount with Tripod Kit is a very good choice.: https://www.bhphotovideo.com/c/product/1584520-REG/sky_watcher_s30300_eq6_r_pro_equatorial_goto.html