Since off-axis wander results in images which have astigmatism when the prism is placed in a converging beam, Glan types have slightly better imaging qualities than Nicla types.

因为当棱镜置于会聚光束中时，离轴漂移造成有像散的像，格兰型棱镜的成像质量比尼·科尔型略好。

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At that time Nicla Kokecz po Oroznovem- Perko was the farmer, supporting himself and his family by driving his indigenous cattle and sheep up to the high pastures in the summer and making cheese, butter and yoghurt.

BBC: Snowbound Slovenia