Eyepieces
The specifications of a telescope are NOT the only specs that matter. The other half of the equation is the specifications of the eyepiece. Telescope eyepieces are made in different models and sizes to accommodate different observing methods and celestial objects. For example, understanding the focal length of your optical tube divided by the focal length of your eyepiece will result in magnification, which in return can tell you whether it is more suitable for deep space low surface brightness observation or planetary/terrestrial high surface brightness observation. For example, if you wanted to observe an object such as the Andromeda Galaxy with a large apparent diameter, an eyepiece with a long focal length and large apparent field of view would excel over an eyepiece with a shorter focal length and small apparent field of view because it would be able to accommodate the size of the object at low magnification and high FOV while not getting dimmer images as you would with short focal lengths. If you plan on observing planets, a short focal length eyepiece with a small FOV will result in high magnification to observe details on the surface (eg. Great Red Spot). You'll get a dimmer image, but since planets are already bright as it is, this won't be an issue. - Note: Almost all eyepieces come in 2" or 1.25" barrel size forms.
4 Item(s)
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TMB Optical - 58° 1.25" Eyepiece - 8mm
The 8mm TMB Planetary II has been optimized to show maximum contrast, detail, and definition with a wide variety of telescope types and focal ratios when viewing bright objects such as the Moon and planets. It has very high light transmission and contrast, plus minimal lateral color and light scatter. These combine to provide exceptional high power observing, both on and off axis, with long focal length refractors, reflectors, and catadioptric scopes under average or better seeing conditions. That you can get its truly premium performance at such a reasonable price is little short of amazing.
... Learn MoreModel#: TMBP08
$59.95 -
TMB Optical - 58° 1.25" Eyepiece - 7mm
This short focal length 7mm TMB Planetary II eyepiece is from TMB Optical, the company founded by noted apochromatic refractor designer Thomas M. Back to produce state-of-the-art premium optics.
The 7mm TMB Planetary II has been optimized to show maximum contrast, detail, and definition when viewing bright objects such as the Moon and planets, both on and off axis. It has very high light transmission and contrast, plus minimal lateral color and light scatter. These combine to provide exceptional high power observing with long focal length refractors, reflectors, and catadioptric scopes under average or better seeing conditions. That you can get its truly premium performance at such a reasonable price is little short of amazing.
... Learn MoreModel#: TMBP07
$59.95 -
TMB Optical - 58° 1.25" Eyepiece - 6mm
This short focal length 6mm TMB Planetary II eyepiece is from TMB Optical, the company founded by noted apochromatic refractor designer Thomas M. Back to produce state-of-the-art premium optics.
The 6mm TMB Planetary II has been optimized to show maximum contrast, detail, and definition when viewing bright objects such as the Moon and planets, both on and off axis. It has very high light transmission and contrast, plus minimal lateral color and light scatter. These combine to provide exceptional high power observing with long focal length refractors, reflectors, and catadioptric scopes under average or better seeing conditions. That you can get its truly premium performance at such a reasonable price is little short of amazing.
... Learn MoreModel#: TMBP06
$59.95 -
TMB Optical - 58° 1.25" Eyepiece - 5mm
This short focal length 5mm TMB Planetary II eyepiece is from TMB Optical, the company founded by noted apochromatic refractor designer Thomas M. Back to produce state-of-the-art premium optics. It is designed to give you exceptional high power views with short to medium focal length refractors and reflectors – even under so-so seeing conditions.
... Learn MoreModel#: TMBP05
$59.95
4 Item(s)
