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More Information  · Recommended Accessories Price $277.95 List Price $326.95 Field of view 52° Eye Relief 18mm Focal Length 30mm Number of optical elements 5 Barrel Size 1.25" Weight 6 oz. Warranty 5 years Telescope Eyepiece Formula To calculate the magnification and approximate actual field of view of this eyepiece on your telescope, enter the focal length of your telescope below and press the "Calculate" button. mm

The 30mm Takahashi is an excellent low to medium power eyepiece for scanning open clusters, picking up subtle detail in low surface brightness emission and reflection nebulas, etc. It provides a huge 6.6mm exit pupil with an f/4.5 Dobsonian reflector for scanning the Milky Way star clouds in Sagittarius and nebular remnants like the Veil. It’s about the longest focal length eyepiece you can use with a Dobsonian without wasting some of the scope’s light-gathering capability by having an exit pupil larger than your eye can dilate to accept. The 30mm Takahashi provides outstanding low power images with telescopes of every optical type – refractors, reflectors, Schmidt-Cassegrains, Maksutovs, and more.