Join Ben Long for an in-depth discussion in this video Handling stuck filters, part of Foundations of Photography: Specialty Lenses.
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If you stack multiple filters on your lenses, there's inevitably going to come a day when…you can't get your stacked filters apart.…This is especially true if you have a lens that requires very large filters with threads…so tiny it's hard to screw filters together so that they're perfectly straight, especially…if the filters are very large.…If you keep UV or Skylight filters on all of your lenses, then anytime you add a lens,…you'll be stacking filters. Now, getting them apart can be tricky.…First, you need to unscrew the entire stack of filters.…I have two filters here.…I've got an ND filter and then I put a Variable ND filter on top of it to create this stack.…
When I went to unscrew the variable ND filter, the whole thing came off, and now I'm trying…and trying and trying to get them undone, and I can't.…Now, lots of people have lots of ideas about how to get stuck filters apart.…Some people say that you should set one side on an ice pack because the cold will make…that side contract and then you can unscrew them easier.…
The course begins with a look at several common and inexpensive lens attachments, from polarizers to neutral density filters. The course then explores ultra-wide angle and fisheye lenses as well as ultra-long telephoto and macro lenses. The course concludes with a look at tilt-shift lenses, which are useful for architectural photography and special effects, and at offbeat lenses, such as Lensbaby and Holga attachments.
The course also contains Photoshop postproduction advice and examples that illustrate the creative possibilities that an expanded lens collection provides. And because some specialty lenses are extremely expensive, the course also contains advice on renting gear.