Tele Vue Click Stop Zoom

Zoom eyepieces have been enjoyed for a long time by spotting scope users for their quick power change convenience.
Tele Vue say "
In our astronomical observing, we've found the ability to fine tune the exit pupil to obtain
the best overall object contrast an overlooked advantage, especially when using nebular filters."
New eyeguard construction on this versatile 8mm to 24mm zoom eyepiece accepts Tele Vue DIOPTRX™(the lens
accessory that replaces eyeglasses by correcting for eyesight astigmatism)
Since only the Tele Vue zoom includes the unique click-stop feature (8mm, 12mm, 16mm and 24mm) critical for use
with bino viewers, DIOPTRX™ capability completes the performance potential for devotees of bino viewing.
Further, the new eyeguard construction mates with Tele Vue digital camera adapters for
"digiscoping" (afocal imaging using digital cameras).
Includes standard fold-down eyeguard and Tele Vue caps, (as used on Radians, etc.), safety undercut and grip ring.
All 8-24 zooms are not the same:
The Tele Vue Click Stop Zoom as shown is the onlyt zoom eyepiece that can be used with a DIOPTRX™ (for your astigmatism)
and is also the only one that is "digiscoping ready" and of course it's the only one that is subject
to Tele Vue's exceptional quality checking!
Incorporating these unique features into this highly regarded long eye-relief zoom creates
an ideal multi-function visual & imaging platform.
It also combines beautifully with Tele Vue Barlows for extended magnification.
Nagler 3-6mm Zoom Eyepiece

This fantastic new eyepiece is according to Tele Vue "tack sharp across it's constant 50 degree apparent
field, AND throughout it's 3mm to 6mm focal length range, even in fast APO scopes.
The 3mm to 6mm Nagler Zoom is parfocal throughout its zoom range, parfocal with other Tele Vue 1¼ inch
eyepieces and has a constant 10mm eye-relief! All this packed into 0.3lbs in weight!
The new 3mm-6mm Nagler Zoom features Click Stops at 3,4,5 and 6mm, full multi-coating, blackened lens edges,
folded-down eyeguard, rubber-ring, safety undercut, anti-reflection threads and filter threads.
Nagler 2-4mm Zoom Eyepiece

With click-stops at 2, 2.5, 3, 3.5 & 4mm, this is the ultimate tool for tweaking out the
last bit of power that the atmosphere will permit.
The 2-4mm Nagler™ Zoom is recommended for fast, high performance scopes of 800mm focal
length or shorter, such as the NEW Tele Vue-60.
Just like its award winning 3-6mm Nagler Zoom brother, this Zoom has:
Eye-Relief: 10mm
Apparent Field-of-View: 50º