How can I make a Telescope with the lenses I have

List of lenses I have

1. Convex - 200mm F.L - 50mm Dia
2. Convex - 50mm F.L - 50mm Dia
3. Convex - 40mm F.L - 40mm Dia
4. Convex - 45mm F.L - 25mm Dia
5. Concave - 200mm F.L - 50mm Di

I tried to make a telescope with 200mm convex as objective and 40mm convex as eyepiece. it gives 5x which is very less maginification. With other lenses I have what combination can help me improve the magnification.? is it possible to have more that two convex lens lined up to get more magnification ?

• Would AstronomySE be a better place for this? I do appreciate the physics though, I just wonder if they have an answer there already. – user167453 Sep 12 '17 at 12:33
• What is wrong with 5x particularly if the telescope is hand held? – Farcher Sep 12 '17 at 13:01
• @Farcher not enough to look at even moon or nearby planets – Khaleel Sep 12 '17 at 13:26