Camera Lens Filter Size Chart for Nature Photography (2026): Sony, Canon, Nikon, Sigma & Tamron

You already own the lens. You just need to know what size filter screws onto the front of it, so you can buy the right one the first time instead of returning the wrong one. That is the entire purpose of this page.

The fastest answer is on the lens itself. Look for a marking that reads ∅ followed by a number, usually printed on the front ring or on the inside of the lens cap. That symbol means filter thread diameter, and it is definitive. The tables below are for when the lens is not in your hand.

Sony E-mount filter sizes

Canon RF filter sizes

Nikon Z filter sizes

Sigma and Tamron (Sony E-mount) filter sizes

Buy one filter, not five: step-up rings

If you own several lenses across different thread sizes, do not buy a polarizer for each. Buy one good filter in your largest size and adapt the smaller lenses up to it with a step-up ring set. A 67mm lens takes a 67-77mm ring and then uses your 77mm filter.

The rule runs one direction only. You can step a small lens up to a big filter. Stepping a big lens down to a small filter vignettes badly, especially at wide focal lengths. When in doubt, size to your largest lens.

The exception is the 95mm and 105mm super-telephotos. Filters that large are expensive and heavy, and because you are shooting at long focal lengths through a narrow field of view, a polarizer does very little for you there anyway. Most wildlife shooters skip front filters on these entirely.

Shop by the size you just found

• 46mm — polarizer · ND filter · protection filter
• 49mm — polarizer · ND filter · protection filter
• 52mm — polarizer · ND filter · protection filter
• 55mm — polarizer · ND filter · protection filter
• 62mm — polarizer · ND filter · protection filter
• 67mm — polarizer · ND filter · protection filter
• 72mm — polarizer · ND filter · protection filter
• 77mm — polarizer · ND filter · protection filter
• 82mm — polarizer · ND filter · protection filter
• 95mm — polarizer · ND filter · protection filter
• 105mm — polarizer · ND filter · protection filter

What about drop-in filters?

Several super-telephotos have no front thread at all. The front element is simply too large to filter economically, so the manufacturer puts a small slot near the mount instead. Sony’s 300mm f/2.8, 400mm f/2.8 and 600mm f/4 GM all take 40.5mm drop-in filters. Nikon’s 400mm f/2.8 TC, 600mm f/4 TC and 800mm f/6.3 PF take 46mm drop-in filters.

The 800mm f/6.3 PF catches people out in particular. It looks like a lens that should take a big front filter, and it does not — it is a rear drop-in design.

Two things worth knowing before you buy

Thread size is not quality. Two 77mm polarizers can differ by a factor of five in price, and the difference is coating quality, colour neutrality and how much light they cost you. A cheap polarizer on an expensive lens is a real downgrade.

Thin filters exist for a reason. On lenses wider than about 20mm, a standard-thickness filter ring can appear in the corners of the frame. If you are filtering a wide-angle lens, buy the slim version.

Sizes verified against manufacturer specifications, DPReview and published lens databases as of August 2026. Manufacturers occasionally revise a design, so if the number on your lens ring disagrees with this chart, believe your lens.

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