FPL-53 65mm apochromatic lens with integrated field flattener
AIRY APO65F apochromatic refractor has a quadruplet
lens composed by a front FPL-53 triplet and an integrated field
flattener. Perfect for long-exposure wide-field astrophotography, it
offers a great chromatic aberration correction for images with no false
color, rich in contrast and details.
When you want to take pictures of deep-sky objects of the Universe (such as Galaxies, nebulae and star clusters) we often use apochromatic refractors
and DSLR or cooled CCD cameras with large sensors. In fact, being able
to frame large areas in the sky, you can record wide field objects, such
as the Andromeda Galaxy (M31) or the Pleiades (M45). Often, however, it
is easy to note a stars deformation toward the edges of the field, a
phenomenon known with the term "field curvature". This effect is normal
in telescopes and is most noticeable when the aperture ratio is low (eg
less than f/7) and with large sensors. AIRY 65F comes with an integrated
field flattener that corrects the field curvature to give you perfectly
corrected images with pinpoint stars also with large sensors, up to
Full Frame (44mm corrected field).
50,8mm Hybrid-Drive focuser
refractors are provided with Crayford focusers suitable for visual use
but not for photo applications. In fact, during the long exposures
required by astrophotography, this type of focuser can cause camera
slippage moving the sensor out of focus. For this reason we have chosen
to provide our AIRY APO65F telescopes with the new 50.8mm Hybrid-Drive
focuser that adds, under the focuser tube, a rack and pinion thereby
maintaining in position even heavy cameras (capacity of up 3 Kg). Below
the focuser there's also a locking screw: closing it, you will be sure
that your camera will not move any more!
The 50.8mm Hybrid-Drive focuser presents the connection for 50.8mm
accessories. It also features a convenient 1:11 fine focus gear,
particularly useful when you need to focus at high magnification. The focuser has a long ride of 60mm.
OnAxisLock 50,8mm locking device
Using heavy photographic
accessories such as DSLR or cooled CCD (often with filter
wheels) cameras, it is crucial to avoid flexions when we insert them
into the telescope's focuser. This also applies also to visual use when
we connect large diagonal and wide field eyepieces (which are often very
For this reason, the AIRY APO65F focuser has the new OnAxisLock
locking device on 50,8mm connection instead of normal thumbscrews. This
allows you to perfectly lock the inserted accessory by rotating the
outer (red) ring: a special inner ring tightens accessories with a
device also helps keep perfectly aligned on axis the accessories
inserted into the focuser: you'll be so sure that the camera's sensor
will be perfectly centered in the telescope optical axis.
PLUS system support rings
Forget about the uncomfortable and
weak support rings that are often found in cheap telescopes! Our AIRY
APO65F apochromatic refractor has beautiful aluminum anodized support
rings, made with high precision CNC machines, which are part of the PLUS
(Prima Luce Universal System)
system. This gives you maximum freedom in adapting the telescope to
your request; at the same time, it has all the threaded holes, holes and
slots suitable for connecting all the PLUS compatible elements, always
with simple M6 screws.
For example, you can choose to
install either a Losmandy or Vixen plate type, or you can use the holes
in the upper part of the rings to install a telescope in parallel
(through the guide rings PLUS compatible) or another dovetail plat
equals to one located below the telescope (to position where you want
guide rings or to allow the sliding Vixen + Losmandy dovetail clamp).
A complete line of dedicated accessories:
complete line of accessories for AIRY let you personalize your telescope
according to your needs. Always with quality and operating certificated
4 years extended warranty and Q-certified controls
AIRY apochromatic refractors are equipped with extended warranty, 4
years (instead of 2 of the most telescopes)! This way you will be sure
not only to have a great product but also with quality that lasts over
time! But our innovation doesn't end there.
we have developed Q-certified, a comprehensive control system that we
work out in our laboratory prior to shipment and delivery of the product
you ordered. In fact, before delivering the AIRY APO65F telescope, we
test the collimation and the perfect functioning of all mechanical
addition, we pay much attention and care to shipping, carrying a sturdy
packaging and giving it to the courier service. We want to be sure that
you will receive your new AIRY APO65F not only in the shortest possible
time but also with utmost care.
every AIRY telescope is identified by a unique serial number. Right:
functional and collimation verification of optics on optical bench.
AIRY APO65F apochromatic refractor - scope of delivery:
- AIRY APO65F apochromatic refractor optical tube (D: 65mm F:420mm f/6.5)
- Aluminum intubation
- PLUS support rings
- 2" Hybrid-Drive focuser with 1:11 fine focus
- 50,8mm OnAxisLock locking device
- Retractable dewshield
- Connection for "DX-2 finder support for AIRY refractors"