Product Overview
The Starfield Dobsonian has a very clear
purpose, to offer a large aperture and an excellent image quality.
The 16" f/4.5 Dobsonian features a parabolic primary mirror, made of BK7 glass, to produce sharp and bright images at the eyepiece. With an innovative clutch system, and cooling fans on the primary mirror, the Starfield Dobsonian telescope is a complete telescope system with a 9mm and 30mm plossl eyepieces and a 50mm finder scope
Ball Bearing movement
Push the Starfield Dobsonian from target to
target with ease on its ball bearing pivots. Smoothly track your object
and keep it in the field of view of your eyepiece
2 Speed Crayford Focusing
Achieve a sharp focus with us with the dual-speed
Crayford focuser. The 10:1 adjustment lets you get that detail that you
would expect from a
Finder Scope
Using the included Right Angle correct image 8x50mm finder scope make centering what you want to see easy!
Build in cooling fans
Get your observing session going sooner. With
the battery operated cooling fan the primary mirror can be cooled down to the
ambient temperature faster.
Eyepiece organization
Keep the eyepieces you want to use within reach!
Enough room for a 2" eyepiece and three 1.25" eyepieces.
Right at your finger tips.
Specifications
- 16'' (406.4mm) Newtonian Design
- F/4.5 Focal Ratio
- 1800mm Focal Length
- 0.5mm Secondary Support
- Enhanced Aluminum Coating, 94% Reflectivity
- 2'' Dual Speed 1:10 Caryford Focuser
- 3371X Light Gathering Power
- 58X Minimum Magnification
- 960X Maximum Magnification
- 0.285 Arc Second Resolution (Dawes Limit)
- Central Obstruction : 25% Linear (6.3% By Area)
- Diffraction Limited Optics (1/12 Wave RMS Precision)
- Magnification : Eyepiece 1 (30mm) : 51X
- Magnification : Eyepiece 2 (9mm) : 169X
- Dobsonian Mount Design With Altitude Tension Bearing System
- Full Brass Compression Ring On Adapter And Focuser
- Tube Material : Metal
- Base Material : Wood.
Included Items
- 16'' F/4.5 Thrust Tube Dobsonian Telescope
- Mount Base
- 2'' 30mm Superview Eyepiece
- 1.25'' 9mm Super Plossl Eyepiece
- 8X50 Finder Scope
- 2'' Dual Speed 1:10 Crayford Focuseer
- 2'' To 1.25'' Adapter With Brass Compression Ring
- 2'' 35mm Extension Tube
- 1 Year Limited Warranty
Reviews
1 Review Hide Reviews Show Reviews
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Starfield Optics 16" Truss Dobsonian
One month in, here are my impressions of the Starfield Optics 16" Truss Dobsonoan. Even though I'm not an especially handy person, base assembly was smooth and I was able to follow the diagramatic instructions with no difficulty. I was initially concerned about weight. I'm 63, of average upper-body strength at best, and this is a big scope. I was pleasantly surprised to discover that I can haul, unload, assemble, disassemble and pack this scope myself, although for first couple of attempts I had a spotter to make sure I didn't get into any trouble. I drive a Kia Rondo and the scope stows easily with the back seat down (in fact with both seats down we can pack it and our 8" solid tube dob). The ball-and-socket truss assembly is not something I'd seen before. It's very positive and secure. The truss poles are very light but very strong. Right out of the box I replaced the stock Phillips-type secondary mirror adjustment screws with Bob's Knobs - we checked in the scope shop to make sure they fit. This scope is an aperture upgrade for me from a pretty good 12" dob, and this puppy does what it's supposed to do: gathers a lot of light. First views ot M13, Lagoon Nebula, and the Ring Nebula made me hoot and holler. I've had it out about 12 times so far, for both deep sky and sidewalk outreach (which is mostly lunar) and to this point I find the performance to be spectacular. The Crayford-style focuser is smooth and responsive. One pleasant surprise is motion. This is my third dob and notwithstanding how heavy it is, it's by far the smoothest in both axes. It's a big, heavy mirror, which consequenty requires a good bit of cool-down time coming out of a hot car. The built-in fan comes with a battery pack (batteries not included) but I've been able to bypass that and plug it directly into my PowerTank. Aesthetically it's a very nice looking instrument. The gleaming black finish, together with its size, lends an almost-menacing, 'Darth Vader' aspect. I should also mention that Steve at Ontario Telescopes was helpful and pleasant to deal with on what was a long, drawn-out transaction. Granted it's still early days, but I'm more than happy with this telecope.
