Sky-watcher Esprit Ed Apo 100mm F/5.5 Refractor Telescope
- Product Code: ga9429
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The Esprit ED APO 100mm Telescope from Sky-Watcher is 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/5.5, this fast 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: 100mm Focal Length: 550mm, f/5.5 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
Parameters | |
---|---|
Optical Design | Refractor |
Aperture | 100 mm |
Focal Length | 550 mm |
Focal Ratio | f/5.5 |
Eyepiece Barrel Diameter | 2" |
Diagonal | Star diagonal |
Finderscope | 8 x 50 Right angle, erect-image |
Tripod | None |
Mount Type | Losmandy |
Power Source | None |
Optical Tube Dimensions | 3.9 x 24.5" (10 x 62 cm) |
Weight | 16.3 lb (7.4 kg) |
Packaging Info | |
Package Weight | 45 lb |
Box Dimensions (LxWxH) | 26 x 22 x 15" |
- 3-Element Refractor
- Aperture: 100mm
- Focal length: 550mm
- Focal ratio: f/5.5
- 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 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
Q: 2. New to Astrophotography. What adapter would you recommend to mount a Nikon D750 to this telescope?
A: You will need the Celestron SLR (35mm OR Digital) Camera Adapter for All Refractor and Reflector Telescopes which Accept 1.25" Eyepieces - Requires Camera-Specific T-Mount Adapter BH #CETA1.25 • MFR #93625 https://www.bhphotovideo.com/c/product/202135-REG/Celestron_93625_SLR_35mm_OR_Digital.html In place of the eyepiece and the Vello T-Mount Lens to Nikon F-Mount Camera Lens Adapter BH #VELANFT • MFR #LA-NF-T https://www.bhphotovideo.com/c/product/750881-REG/Vello_LA_NF_T_Nikon_F_Mount_To.html To mount on the camera body. Those (2) pieces will now screw together
Q: 3. What mount is this for? Eq?
A: Would need to know if you want a manual, motorized or GoTo computer mount.
Q: 4. Can I use multiple filters like IR cut filter, light pollution filter at the same time with this scope for astrophotogrphy?.
A: You might get some vignetting or stacking effect with using these filters at the same time. You can try it and see. It's really trial and error.
Q: 5. Is it f/5.5 before or after the included field flattener?
A: f/ 5.5 is always a consent.
Q: 6. 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: 7. good morning.... what is the weight of the OTA only? can i use it with sky watcher eqm-35? what other accesories i will need or replace? thanks
A: Telescope OTA Weight 6.5 lbs. (3kg) Can be used with the Sky-Watcher EQM-35 EQ GoTo Mount BH #SKS30500 • MFR #S30500
Q: 8. 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: 9. 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: 10. What eye piece do i need if i want to connect my cellphone to this? it looks like the eye piece on this is 2 inches wide
A: Either a 2", or 1.26" Eyepiece Size will work. These Smartphone Adapters are fairly universal.
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