Does the H1 need an adapter ring to use a 58 mm filter?

In fact it needs an adapter ring and it comes with the camera, but the problem with this adapter is that it allows you to use sony lenses only (they made it too long on purpose, so only their brand optics can fir, otherwise you will get vignetting on the edges of picture. Note! This is not the issue of adapter ring itself, but the distance between photo lens and adapter - it is too big to use other branded lenses).

Yes. On the camera inself, there are threads on the inside of the lens area ...... that is for the adapter ring that comes with the camera kit. The 58mm lens does not ... and is a little pricey for me right now .... I was told you have to get "Sony Only" ?????? The adapter ring will also accept the 1.7x teleconverter lens ... which I did purchase and (personally) am not too impressed with it yet ... maybe if I went to a football game or baseball game, etc ... but for over all picture taking, the H1 itself has enough zoom power on its own. Have fun