Rollei IR400 not as sensitive?

Few weeks ago I shot a roll of Efke IR820. I liked the Woods effect but found it a tat grainy. Some of you mentioned the Rollei IR400 having finer grain. I gave it a shot and though I like the fine grain, I feel like the Wood effect is less visible. Could be due to using a different camera though.

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Developed in Maco Ecoprint 1+100 Stand development 90´

Photographer:
sandravo
Uploaded:
2013-09-01
Tags:
hoya ir park r72 summer sun villa white
Camera:
Fujifilm GA645 Professional
Film:
Rollei Infrared 400
City:
haasdonk
Country/region:
Belgium
Albums:
More white greens!
More photos by sandravo