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Originally Posted by AdamJL
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Great eyepiece but only 85x magnification assuming you have 600mm focal length. Good for globular clusters. It will show Jupiter and Saturn nicely but a. Bit small. You want 120-160x with 180x Max. Exit pupil will be 0.44mm at 180x.
If you get the Tele Vue 2x Barlow (get 1,25” version) and combine with 7mm DeLite you will get 170x and complement later with 9mm or 11mm or both. If no Barlow then just get 4mm DeLite for 150x or 5mm for 120x.
(With planetary observing every mm counts so it is not uncommon to have a series of eyepieces at the shorter focal length end. (Telescope dependant)
The DeLite have 20mm eye relief so can be used with glasses.
Note a few of these eyepieces and you soon spend $2k but I only mention them as you brought it up. There are other cheaper options especially if using for kids.