Polish Easter Eggs

Seen in Krakow Market Square -- there were many of these decorated eggs -- I used my 1975 KX loaded with outdated Fuji Velvia 100 rated 80 ASA -- a lot of the slides were under-exposed a bit - when I checked the KX meter with a good Weston Master using the Incident Light method I found the KX was under-exposing by half a stop. I had my suspicions the last time i used it on the Great War tour around Ypres in Belgium that was with some Fuij Sensia 100 Mk II and they were a 'bit dark' .