FresHDV mentioned the Depth of Field Calculator widget for OS X previously. The widget has recently been updated to version 1.5 and at the request of onsuper8.org they have added specific settings for 8mm film users. Thanks for the tip, Giles!

In related news, onsuper8 also has a recently-blessed-by-Apple News widget, if you are so inclined. And for those that aren’t widget-heads, there’s still a good old fashioned RSS feed.