Telescope-Focusers-iOptron iAFS2 2″ Auto Focuser with 2″ Visual Back

A Streamlined 2″ Electronic Focuser All-in-One!

If you’re looking to electronic focus to your telescope without the brackets,
imbalance, and bulk, then look no further! Combining electronic, computer
controllable, focus power with manual adjustability in one focuser unit this
upgrade from iOptron allows you to ditch bolt-on electronically assisted
focusers and build a sleek setup. Make your modern imaging machine today, with
the iOptron iAFS2 2″ Auto Focuser with 2″ Visual Back!

Whether you’re looking for a more convenient, precise, or hands-off way to
focus, electronic focuser upgrades have you covered! While the most popular
electronic assistance add-ons on the market today are focused on augmenting
your existing focuser, this system from iOptron is the focuser.
Replacing your refractor or RC’s focuser or adding this to the back of an SCT
gives you the power of a traditional electronic system,
without the added bulk or loss of manual controls! With the iOptron
iAFS2 2″ Auto Focuser with 2″ Visual Back in your system you can hone in on
your targets with incredible 0.6 μm precision, ensuring you can find that
tack-sharp focus point for crisp astrophotos and views. With ASCOM and INDI
support, accessing this precision or using automation through your favorite
astronomy programs is easy; but if you’re looking for more of a hands-on
approach don’t fret! In addition to computer connectivity through USB, the
iAFS 2 can be controlled through the electronic focus buttons and manual focus
knob. By integrating this all into one focuser assembly iOptron helps you
eliminate left-right imbalance for a more centered system!

Bringing iAFS to Your Astro System

Connecting iOptron’s iOptron iAFS2 2″ Auto Focuser with 2″ Visual Back to your
equipment can be done with just one or two adapters! At this time iOptron
offers these adapters (sold separately) that will adapt the iAFS 2 to your SCT
or in place of your existing focuser: an M80x1, an M83.5×1.5, and a M90x1. The
length of the iAFS will add when fully collapsed is 90.5 mm, with 30 mm of
outward travel available; so be sure to check that your telescope can focus
with your equipment positioned within this range (measured from where the iAFS
attaches to your scope). Be sure to attach any corrective elements when rough
focusing and collecting this measurement. When it comes to connecting
equipment, the iAFS 2 is a 2″ focuser capable of providing 51 mm of clear
aperture (maximum) with an M56x0.75 connection. A 2″ visual back is included
to attach 2″ corrective elements, visual accessories, or standard
astrophotography trains equipped with an adapter like the
Apertura M48 Nose Piece; with a separately available M56x0.75 to M48x0.75 adapter that can provide a
completely threaded solution for those seeking to use the latter setup in a
fully threaded configuration.

Condensed Profile, yet Fully Featured!

The iOptron iAFS2 2″ Auto Focuser with 2″ Visual Back brings together electronic focus, sleek design, robust build, and more into one powerful upgrade for your astronomy system!

Sleek Electronic Focus
Typical electronic focusers use
brackets or clamps to position an electronic motor in place of your stock
focus knob. This places a notable amount of weight off to one side and makes
for a bulkier, more involved, and imbalanced system. By integrating the
electronic focuser and temperature sensor components into the focuser itself
iOptron is able to mitigate these concerns with one sleek system. If
achieving perfect balance or an attractive and streamlined system is your
goal, then this an excellent way to bring your dream build to life!

Three Ways to Focus
Whether you prefer remote or
manual focus, the iOptron iAFS2 2″ Auto Focuser with 2″ Visual Back has you
covered. With two USB-C ports and two USB C to USB A cables included (0.25 m
and 1 m), you have plenty of options when it comes to constructing an ideal
connection to your external or telescope-mounted PC. This will allow your
ASCOM or INDI compatible astronomy suite of choice to interface with the
iAFS, opening the door to focusing remotely and automatically for maximum
convenience and precision in your astrophotography sessions. You can
additionally access the electronic precision of this focuser through the
focus adjustment buttons on the top of the focuser, which can be pressed for
micro adjustments or held for larger adjustments. While more traditional
electronic focusers can lock you out of manual focus adjustments, this isn’t
the case with iAFS—with a focus adjustment knob built into the unit to
allow you to make quick manual adjustments even when the unit is not powered
up. With position memorization when powered off, you can make these changes
without worrying about having to recalibrate the focuser once power is
turned back on!

Precisely Engineered
The iOptron iAFS2 2″ Auto Focuser
with 2″ Visual Back is engineered with precision and strength in mind! The
belt-reduced stepper motor system driving this integral electronic focuser
gives you backlash-free focusing and an ultra-fine resolution of 0.6 μm
for payloads of up to 11 lb. This is housed in an all metal body, weighing
783 g and measuring 90.5 mm x 106 mm (measured at top of electronics/ motor
box; 82 mm diameter). Over-travel stops are built-in to both directions
which will prevent you from overextending and damaging the iAFS or inside of
your scope. For those looking to adjust their sensor’s window into the night
sky, a camera angle adjuster has been integrated as well—simply loosen
the angle lock knob, rotate, then re-lock. Finally, this additionally
features two sets of two M4 screws which can be used to install a finder
shoe for your finder, guider, or other Synta-style accessory needs!