 |
This adapter allows you to use 1.25" eyepieces in 2" focuser tubes. It
is threaded to accept standard 2" filters, so you can use your 1.25"
eyepieces with 2" filters.
2" filters screwed onto a 2"-1.25" adapter with 1.25" eyepieces can
be very convenient, since you don't need to unscrew and re-screw the
filter every time you change eyepieces. However, many shorter 2"-1.25"
adapters are usually not long enough to prevent the 1.25" eyepiece
barrel from hitting the filter when the eyepiece is inserted into the
adapter. Many expensive filters have been scratched and even cracked in
this way!
This "High Profile" adapter from Blue Fireball provides the extra clearance needed to
ensure that the 1.25" eyepiece barrel will not touch the filter. The
adapter is 45mm in length. It provides 15mm of additional clearance
compared to their standard low profile adapter; thus it also needs about 15mm of
additional in-focus travel.
The adapter also has a brass compression ring that restrains the
eyepiece and prevents marring of the eyepiece barrel by the metal
set-screw. It weighs only 2.3 oz and is precision machined from black
anodized aluminum.
|
|
|
