NEW William Optics Digital Display Gauge (DDG) focuser for serious astronomers and astrophotographers!!
We are proud to present this innovative device from William Optics, the first ever seen on an astronomical telescope. This prominent, revolutionary design is primarily geared towards serious amateur and professional astrophotographers. The Digital Display Gauge - DDG - allows you to take precise focusing readings down to two decimals instantly. With this new device integrated into your telescope you will no longer need your old red flashlight during observations or imaging of the night sky!
This premium (2") 360 degree rotatable DDG focuser comes with two locking screws on angled positions for heavy load applications, a silk-smooth 2-speed microfocuser, a 2" to 1.25" adapter and a thermometer installed into focuser knob!
This focuser has a 96.9mm (3.81") diameter base plate that is designed to fit Synta-made (Skywatcher, Celestron, Orion and more) refractors. It will add functionality and style to your observations. It will assure imaging without any image-shift, better star testing, and a touch of William Optics's quality. The ideal upgrade for your refractor of any size!
• 2" DDG focuser: smooth and precise. Zero image shift. 360 degree rotatable.
• Now with a new one-piece dual speed reduction.
• Solid as a rock, smooth like a feather.
• Brass compression rings on both the 2" drawtube nosepiece and 1.25" eyepiece adapter.
• Large aluminum knobs.
Impeccable Fit and Finish
• Large drawtube locking thumbscrew with adjustable tension.
• Two locking screws on angled positions for heavy load applications. Your new focuser will accommodate any accessory such as CCD cameras, large eyepieces, binoviewers, etc.
• Installed thermometer.
• Long drawtube (80 mm).
Easy to Mount
• Requires only minimum assembly on your part. Replacing your bundled die-cast rack-and-pinion focuser has never been easier: release 3 screws, and get ready for observing in 3 minutes!
Designed for Synta-made Refractors from 3” to 6”. Base adapter/flange has an outside diameter of 96.9mm. Should also work with other scopes requiring a 96mm or 97mm base such as Celestron C4R 102mm f/9.8, Celestron 102mm f/5, Celestron C-102HD 102mm f/10, Celestron C6R 150mm f/8, Orion 80ED, Orion 100ED, Orion Astroview 100mm f/6, Orion Astroview 120ST EQ (mounted into collar on tube), Sky-Watcher 80ED, Sky-Watcher 100ED, Sky-Watcher 120ED, Sky-Watcher 102mm f/9.8. However, you are responsible for confirming the fit by measuring the inside diameter of your telescope tube before you order this item.
- 2” 360 deg. Rotatable Crayford Focuser With Zero Image Shift
- Dual speed microfocuser: 1:10 reduction
- Drawtube Travel Length 3.19" (80 mm)
- 1.25" Adapter with brass Compression Ring
- Base flange/adapter outside diameter = 3.81" (96.9mm)
- Weight : 3lb-9.1oz (1448g) with 1.25" eyepiece adapter; 3lb-6.1oz (1363g) without adapter
Feb 23, 2017
PerfectPros: Cons: Comments:
Works on the celestron omni 150 mm refractor. Tight fit which is nice. Great improvement over factory focuser. The fine tune on this is awesome. Has a zero reset on the lcd panel with a on / off button to conserve battery. Temperature gauge on the knob is handy. Finderscope can be mounted on the right or left. But the best thing is that it rotates to keep the finder scope and eyepiece in a comfortable viewing position on a equatorial mount. I love this accessory. Thanks william optics and Agena!
This review was provided courtesy of AgenaAstro.comJan 28, 2016
William Optics 2" DDG Crayford for SyntaPros:
Solid,Compact,Easy to Use,Strong Construction,AccurateCons: Comments:
I have been wanting this focuser for quite awhile and bought it for my Celestron C6R.
The finish and construction are superb, I haven't had a chance to use it yet though I did bring the C6R in the house and installed the focuser.
Install was a snap, take the 3 screws out holding the old focuser, slide the William Optics 2" DDG Crayford in and use the allen screws provided to mount it.
What the heck could be easier ?
This review was provided courtesy of AgenaAstro.comMar 27, 2015
Great focuser solutionPros:
Easy to install,Exc Build Quality,SmoothCons:
Don't Need The ThermometeComments:
I got this to replace the stock focuser in my SW-120. It was straightforward to install. Build quality is very high and action is smooth. Happy camper!
This review was provided courtesy of AgenaAstro.comSep 8, 2014
Very nice upgradePros:
Strong Construction,Easy to Use,Accurate,CompactCons:
No Finder AdaptorComments:
Really good, solid focuser that was easy to fit. Friction adjustment needs setting when using heavy lenses or an SLR, but that is the way with Crayford focusers I suppose. No finder dovetail or adaptor is included and my original 'scope had the finder on the focuser, so I had to adapt one of the Agena Synta dovetail bases to fit, but Agena were very helpful with this.
This review was provided courtesy of AgenaAstro.comMay 30, 2013
Quality focuser at a resonable pricePros:
Strong Construction,Easy to Use,AccurateCons: Comments:
Another quality product from William Optics! Solid construction, smooth Crayford action perfect for astrophotography. Can't find a downside to this focuser.
This review was provided courtesy of AgenaAstro.comSort by
Manufacturer William Optics Focuser Telescope Type Refractor