|
|
|
|
 |
| Sky map of Calgary by AstroViewerฎ |
PRICES SHOWN ARE US DOLLARS - ADD 5% TO GET CANADIAN DOLLARS
Field Flattener for FLT Model Telescopes
This high-quality flattener has been engineered and CNC machined
for usage with the FLT-110 & FLT-132 APO refractor. Specifically designed for the FLT line, it will yield amazing results!
APO
Triplet design lens will not degrade the performance of your FLT.
CAMERA ADAPTERS
35mm SLR Camera adapter and CCD camera adapter INCLUDED in the price!
35mm CAMERAS
Ideal for 35mm film/full-size chips/large CCD cameras.
AMAZING
It will flatten the field amazingly well.
This is a must-have item for avid astro-imagers. Great pictures await!
Part
#
WE-FLAT68 IN STOCK
$650
$399 SALE
2" Field Flattener for f/5.5 to f/6 Refractors
Introducing the NEW William Optics Field Flattener 88,
especially recommended for Megrez 88. This 2" lens system provides a flat
field for 35mm photography with f/5.5-6.0 refractors. You will see bright &
sharp stars all the way across the field.
Fully multi-coated/ doublet design (Ohara
glass )
Suitable for f/5.5~ f/6.0 refractors
(Megrez88)
T-ring thread for any 35mm cameras
Shiny anodized finish
Internal surface is painted without
reflection
Part # WE-FLAT-88 IN
STOCK
$158
$148 SALE
0.8X Reducer/Field Flattener Version II
This is William Optics version II of their reducer/field
flattener. It now boasts a removable 2" nosepiece and rotating function. This
field flattener has an SCT-type thread that will easily screw onto your
ZenithStar 66 SD APO to achieve an amazing ultra-wide field at f/4.8. (and of
course, it also fits the ZS66ED Petzval and ZS66ED Triplet) You will not need to
buy different products for your 80mm and 66mm William Optics refractors,
this new product will cover them both!
PERFORMANCE
The field flattener is optimized for APS size
chips, and recommended for telescopes from 66 to 90mm.
Suggested lens to chip distance for optimal
results is 56mm.
What matters the most, is that your shots will
show pinpoint stars and you will maximize to the fullest extent,
your apochromatic refractors' potential.
Reducing factor of 0.8X.
Fits SCT or standard and weighs in at 210 grams.
SUPERBLY FINISHED
William Optics polished anodized finish.
All internal surfaces threaded and blackened for
no reflections.
The anti-reflection multi-coatings on all optical
surfaces will boost transmission and enhance your astro-imaging
performance!
Will work with f/5 to f/9 refractors.
EASY TO USE
Simply loosen the set screws on the side and
your adapter will rotate 360 degree with a thumbscrew to lock it into
place!
REASONABLY PRICED
Excellent price point to get you started in
astro-imaging with your newly purchased camera!
2 year warranty as on any William Optics product.
SUITABLE FOR
Z70, M72, Z80, M88 and M110
Exclusively from William Optics, this new focal reducer/field flattener is
retailing at a launch price promotion.
Get one while the price is good.
Part
# WE-FLAT2 IN STOCK
$159 $149 SALE
0.8X Reducer/Field Flattener Version III
This new Reducer/Field Flattener Version III, is
especially recommended for users of the William Optics Z70, M72, M80 ,M90, M102
and FLT-110.
The large 50mm clear aperture lens will reduce vignetting to almost nothing. Simply
loosen the set screws on the side and your adapter will rotate 360 degrees, with
a thumbscrew to lock it into place!
There are antireflection multi-coatings on all optical surfaces, which will boost transmission and enhance your astro-imaging performance!
What matters most is that your pictures will show pinpoint stars and you will maximize to the fullest your apochromatic refractors' potential.
SUITABLE FOR
Z70, M72, M80 ,M90, M102 and FLT-110
not compatible with M110
Part # WE-FLAT3
IN STOCK
$257
$199 SALE
REVIEWS FEEDBACK
Field Flattener Version IV
This revolutionary new William Optics AFR-IV Adjustable Flattener was made for
500-1000mm refractors.
Super-Transmission-Coated with 2-elements, this unit was designed and produced
by William Optics. The inner flattener lenses can be set at the optimum
66mm-86mm back focus by simple hand twist (Distance from flattener lens to film
or CCD plane).
This accessory is a must-have for refractor astrophotography.
Lens
Designed to cover full size DSLR cameras with
clear lens aperture of 54 mm
STM coated with excellent doublet air spaced
design.
Produced entirely with the best Ohara optical
glasses.
Lens-to-chip distance : 122-142
Power : 1.1x ~ 1.2x
Amazing
It will flatten the field amazingly well and
finally make you see those stars round!
This unique flattener works with William Optic's
or other 500-1000mm focal length refractors.
Superb Finish
Superb William Optics anodized finish.
All internal surfaces threaded and blackened for
no reflections.
Easy to Use
Rotating T-ring thread for any 35mm camera.
The T-ring adapter is provided with a lock screw
and extra lock retaining screws.
Will accept any standard T-ring for your camera.
Inserts directly into 2" focuser.
Suitable for
M90, FLT98, FLT110, FLT132 and many others.
Weight
595 grams
Recommended Distances
Megrez 90 - 142 mm
FLT 98 - 140-142 mm
FLT 110 - 132 mm
FLT 132 - 127 mm
Part # WE-FLAT4 IN STOCK
$299
$275 SALE
2" Field Flattener for f/6 to f/8 Refractors
Astronomy Technologies introduces this new 2" field flattener
that has been designed to optimize the flat-field imaging performance of
Astro-Tech and TMB apochromatic refractors. Optimized to work with an f/7 light
cone, the field flattener will also work well with any other brand and type of
f/6 to f/8 focal ratio refractor. Designed to work purely as a field flattener,
it does not change the focal length or focal ratio of your telescope.
The Astro-Tech 2" field flattener flattens the normal field curvature inherent
in all refractors to provide you with images that are sharply focused out to the
very corners of your 35mm or large format CCD imager frame. Stars look sharp and
point-like all the way across the field. You don't have to worry about photos
that are sharp in the center but out of focus at the edges.
The 2" barrel of the fully multicoated dual-element Astro-Tech field flattener
inserts directly into your refractors 2" focuser drawtube. A groove machined
into the field flattener barrel engages the thumbscrew or compression ring of
your focuser to act as a safety stop. This prevents the field flattener and
camera from falling to the ground should the thumbscrew or compression ring
accidentally loosen during use.
Standard T-2 T-threads on the observer/camera side of the black anodized field
flattener accept a standard T-ring for connecting a 35mm or DSLR camera to the
field flattener. They also allow direct connection to your CCD camera with its
1.25" or 2" nosepiece removed.
The interior of the Astro-Tech field flattener barrel is finished in
non-reflective matte black, with anti-reflection threading for optimum contrast.
The bottom of the barrel will accept standard 2" light pollution filters and
other 2" filters.
Part # AT2FF IN
STOCK $175
$150 SALE
Last modified: 06/26/09 |
![[Under Construction]](images/undercon.gif)
