Canon Power Shot G10
Zooming power, distance and image quality with teleconverter lens for Canon PS G10 , does that works well?

I use Canon PS G10, sometimes I’ll have to zoom a bit farther to take the close up shots do you have any idea how the additional teleconverter lens TC-DC 58 k works with the camera, does some other teleconverter lens also matches the Camera? Thank you.

Sticking a teleconverter on ANY camera/lens will degrade the image.

You have a “prosumer” camera – basically a fancy name for a point and shoot so sticking on on there will just degrade the image more.
The one you are on about will cut about 4x the light and twice the resolution.
IMO not worth the money.

Canon Power Shot G10

il vaut mieux la qualité d'image Canon shot SX 20 est le pouvoir ou le pouvoir coup de canon .. G-10?

Canon Powershot G-10 est meilleur pour la qualité d'image. G-10 est le plus proche d'un reflex numérique. SX20 IS est un bridge superzoom.

Canon power shot G10