Astro-tech Titan 2" SWA 70 degree Eyepiece 32mm ATT32
Item No. 758-20170
Manuf. No. Astro-Tech ATT32
Astro-Tech 32mm Titan 2" 70 degree field super wide angle Eyepiece, ATT32
This Astro-Tech 32mm Titan is low power super wide angle 2" eyepiece with a very wide 70ı field at a very economical price. It provides ıpicture window onto space" images with any telescope type. If you have a 2" star diagonal or focuser, it will nearly double the area of the field of view thatıs visible through a 50 degree field 1.25" 32mm Plıssl eyepiece that often costs more than the Titanıs sensible price.
For example, with an 8" f/10 catadioptric it will give you a wide 1.12 degree actual field (0.99 square degrees in area and well over twice the diameter of the full Moon) at 62.5x. This compares with the 0.8 degree actual field (0.5 square degrees in area) that you get at the same magnification with the 50 degree apparent field of a typical 32mm Plıssl.
With Dobsonians and short focal length refractors, the 32mm Titan is a superb low power eyepiece. With an f/4.5 Dobsonian, however, it starts pushing the envelope of your eyeıs abilities. The Titanıs 32mm focal length yields a 7.11mm exit pupil on an f/4.5 scope, somewhat larger than most eyes can dilate. You might actually start losing some of the light-gathering capability of your Dob, as some of that 7.11mm eyepiece exit pupil might fall on your eyeıs iris, rather than enter your eye.
With an 8" f/6 Dob, however, the 32mm Titan provides 38x, a bright 5.33mm exit pupil, and a wide 1.84 degree field of view thatıs over three times wider than the full Moon. It takes an object nearly seven and a half minutes to cross that wide field of view, giving multiple observers plenty of time to take a look before you have to manually re-aim the scope. The 32mm Titan is a great eyepiece for family observing and star parties with an 8" f/6 or 6" f/8 Dobsonian.
With a small refractor like the 80mm f/6.8 Astro-Tech AT-80ED, the 32mm Titan provides a huge 4.07 degree field at 17.2x. That makes it ideal for very wide field views of galaxy clusters, the larger nebulas, open clusters, and more.
Its 17mm eye relief will provide virtually unvignetted viewing for eyeglass wearers. But whether you wear eyeglasses or not, the 32mm Astro-Tech Titan will give you a huge field of view at only a fraction the cost of a more exotic super wide angle eyepiece.
- Field of view 70 degree
- Eye Relief 17mm
- Focal Length 32mm
- Number of optical elements 5
- Barrel Size 2" Warranty 2 years