failed double

this is my belair #2 - i send the first one back - and this time i tried to consequently expose the 200 ISO roll at 100 and due to that some pics are overexposed. so my fault and it seems that the lightmeter is reliable then. but i will know more after my 2nd roll which i will expose with the right ISO setting. but obviously sometimes the fokus just ain´t right and with endless setting this is really very strange.