Imaging Harmer Wynne Astrograph
Imaging Harmer Wynne (iHW) astrographs are
high resolution, fast focal ratio instruments with excellent on and off axis
performance. By combining large aperture, fast focal ratio,
corrected optics in a lightweight, stiff, and thermally stable
carbon fiber tube AG Optical Systems has created an instrument
capable of conducting serious scientific work (such as sky surveys)
or capturing wide field images of unlimited deep space object.
AG Optical Systems is currently developing
the 12.5" F3.9 and 16" F3.9 iHW systems that we anticipate will be
available the first half of 2013. We are currently accepting
names from interested parties on a first-come first-served basis.
An optional quartz upgrade is now available for all iHW telescopes.
Quartz' extremely low coefficient of thermal expansion allows the
figure on the optics to remain stable while ambient temperatures
vary. This means you will spend more time imaging and less
time waiting for the optics to stabilize.
Features
| Imaging Harmer
Wynne
Astrograph Features |
- Optics figured and quality tested as a system.
Quartz upgrade available for the ultimate in figure
stability.
- Blazing fast F3.9 system designed and baffled to big
chip CCD cameras
- 8.75" of back focus to support almost any
combination of imaging components (dependent upon
focuser selected)
- Excellent coma free, astigmatism free, flat field
performance over 56 mm image circle
|
-
Outstanding
field illumination across big chip cameras.
-
Carbon fiber composite tue engineered to provide rigidity
and thermal stability.
-
Optional AGO Thermal Control System for PC-based,
automatic control of cooling fans, primary and secondary
heaters.
-
CNC machined components with stainless steel fasteners.
|
System Specifications
|
Model |
iHW12.5 |
iHW16 |
| Aperture |
12.5" |
16" |
| Focal ratio |
3.9 |
3.9 |
| Focal
length |
48.75" |
62.4" |
| Back focus
|
8.75" from back plate to focal plane |
9" from back plate to focal plane |
| OTA type |
Truss |
Truss |
| Primary
mirror |
Supremax
33 substrate. Optional quartz upgrade. |
Supremax 33 substrate. Optional quartz upgrade. |
|
Fans (blowing air into OTA) |
3 x 60mm fans |
3 x 80 mm fans |
|
Secondary obstruction |
6.7" |
8.2" |
|
Focuser (included) |
FLI Atlas |
FLI Atlas |
| Corrector |
multi element,
broadband AR coated |
multi element,
broadband AR coated |
| Mirror
Coatings |
Enhanced
Aluminum |
Enhanced Aluminum |
| Baffling |
primary and
secondary baffles, baffled for 16803 size chip |
primary and secondary
baffles, baffled for 16803 size chip |
| Dovetail |
Massive, thermally
compensated dovetail plate included |
Massive, thermally
compensated dovetail plate included |
| Tube length |
approx. 25" |
approx. 32" |
| Tube weight
with dovetail & focuser |
approx. 52 lbs |
approx. 88 lbs |
|
Price |
$12,975 |
$26,595 |
| Quartz
upgrade |
$1250 |
$2350 |
| AGO
Thermal Control System |
$975 |
$975 |
| Shroud |
$125 |
$140 |
|
Piggyback Dovetail Plate |
$225 |
$265 |
| Spacers
& Adapters |
contact AGO |
| Delivery |
TBD |
| Shipping |
contact AGO |
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