thank you for accepting me in this wonderful group (I'm italian), I just gave my daughter a Celestron Starsense Explorer DX 130 AZ (reflector newtonian telescope) and we are having a lot of fun.
I have read a lot about eyepieces and would like to buy zoom eyepiece.
The major limit of zooms is not having a wide FOV especially at small magnifications and not even constant.
I have divided the zooms to have into three groups:
1 - from 2mm to 8mm
2 - from 8mm to 20mm
3 - from 20mm to 40mm
For the first group i found this (from 3mm to 6mm with constant FOV=50°) https://www.televue...._page.asp?id=49
For the secon group i found this (from 7.7mm to 15.4mm with constant FOV =75°) http://apm-telescope...I_aIRMEKu6b8lcM
For the third group I have not found anything, do you have any suggestions?
Surely the cost of such a set is important.