tokina 11-16
Varifocal vs Parfocal Lenses: What You Need to Know
Justin Heyes
Varifocal lenses should be considered as a handful of primes, each requiring its own separate focus. Parfocal lenses are “true” zooms and can be considered as one lens. So, should you get a parfocal lens or not?
Long Exposure Star Trails on a Moonless Night
Matthew Saville
Continuing with the recent "How We Shot It" theme of long exposures, today we have something quite different from last week's 30 sec. sunset tide pool portrait. While shooting in broad daylight for 30 seconds or longer is a challenge because it requires a very dark neutral density filter such as a 9-stop or 10-stop ND, shooting on a moonless night at the bottom of the Grand Canyon is even darker!
