Filters
Browse all articles in filters
Step-Up & Step-Down Rings: Filter Thread Compatibility Guide (2026)
Learn how to match lens filter threads with step-up and step-down rings, avoid vignetting, and pick the right brass or aluminum adapter.
UV Filters & Lens Protection: Do You Need One?
UV filters don't sharpen digital photos — your sensor already blocks UV light. Here's when a filter genuinely protects your lens, and when it just gets in the way.
Lens Filters Guide: CPL, Polarizers & Landscape Filters
Choose the right lens filter for landscape photography: circular polarizers, ND, graduated ND, and UV — explained by use case, with picks for every budget.
Best Astrophotography Accessories: Trackers & Filters (2026)
Star trackers and light-pollution filters compared side by side, matched by payload, focal length and target — so you buy the right combination, not just a good spec sheet.
ND Filter Size & Fit Guide: 49mm to 95mm
Filter size is your lens's thread diameter, not its focal length. A size-by-size ND filter guide from 49mm to 95mm, with fixed and variable picks for each mount.
Best ND Filters for Photography & Video (2026)
Fixed vs. variable ND filters compared: which stops, which brands avoid the X-pattern and color cast, and which one actually fits your camera bag.