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Extender ED 1.5X
◆
Extender Q 1.6X (50.8/2")
The focal length of the FOA-60 is as short as
530mm. In order to get high magnifications,
eyepieces with shorter focal lengths must
be used. Generally, the eye-relief of the
eyepiece with shorter focal length is short,
so it is apt to make observers tired in a long
observing session.
The Extender ED 1.5X can extend the focal
length of the FOA-60 by 1.5X to 795mm
(f/13.3) and the Extender Q 1.6X(50.8/2")
can do so by 1.6X to 850mm (f/14.2)
respectively. So, by using these extenders,
optionally available, you can comfortably
do the highly magnified lunar and planetary
observations using eyepieces with long
focal lengths.
These extenders can be easily attached
with the 50.8 (2") sleeve system.
Extender ED 1.5X
Extender ED 1.5X
Extender Q 1.6X(50.8/2")
Extender Q 1.6X(50.8/2")
The T-Mount DX-WR is required to attach a
DSLR. Use the T-Mount optionally available,
according to the camera model.
If a flat field is required, the Extender 1.7XR
is recommended.
▼Imaging System
with the Extender-ED 1.5X
Effective Focal Length : 795mm
Effective Focal Ratio : f/13.3
▼Imaging System
with the Extender Q 1.6X (50.8/2")
Effective Focal Length : 850mm
Effective Focal Ratio : f/14.2
Caution:
Do not attach a filter when the 50.8(2")
Extension Tube or the CA-35 (50.8/2") is
connected to the Extender Q 1.6X (50.8/2").
The filter will touch the lens of the extender.
50.8(2”) Sleeve
T-mount DX-WR
DSLR Camera
CA-35 (50.8/2”)
50.8(2”) Adapter
(SKY90)
50.8(2”) Adapter
(SKY90)
31.7(1¼”)
Eyepiece
50.8(2”) Extension Tube L
31.7(1¼”)
Eyepiece Adapter
Coupling S
