Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Eric,
Are you referring to the issue folks find with lens designed for APS-C sensors on a full frame body or is it particular to fish-eyes?
JW
have seen that black edge scenario when using lenses designed for the small format sensors on a full frame camera as the image is only sized for APS-C. In other words the image does not fill the sensor. My assumption was that Artie was shooting digital but would still apply with a
Film camera as they are the standard for "full frame".