
Hoya
Hoya YPND001649 49mm Pro ND16 Filter
★★★★★
Smooth, long-exposure water and controlled depth of field in bright daylight — 4 stops of clean light reduction
$34.47*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Key Features
Reduces the light entering your camera lens by 4 stops
Permits wider apertures and slower shutter speeds to be used
ACCU-ND coating for truly neutral colour balance
Allows you to reduce depth of field for portraits
Low-profile aluminium ring avoids vignetting
Specifications
Brand
Hoya
Model
YPND001649
Filter Diameter
49mm
Filter Type
Neutral Density
Density
ND16 (4 stops)
Coating
ACCU-ND
Ring
Low-profile aluminum
Pros & Cons
👍 Pros
- Four stops of clean, neutral light reduction lets you drag the shutter for silky water and motion blur in broad daylight
- ACCU-ND coating delivers genuinely color-neutral results, eliminating the post-processing correction common with budget ND filters
- Low-profile aluminum ring keeps the filter close to the front element, avoiding vignetting on standard and short telephoto lenses
- Permits wide-open aperture shooting in bright conditions, giving you shallow depth-of-field portraits outdoors without overexposure
👎 Cons
- At 4 stops, it's a moderate density — serious long-exposure work like 30-second daytime shots will require stacking or stepping up to an ND64 or ND1000
- The 49mm thread size limits direct use to lenses with that specific diameter, requiring step-up rings for larger front elements
- No included case or pouch, so you'll want to source your own protection to avoid coating scratches in your bag
- Fixed density means you can't fine-tune the reduction like a variable ND — you get exactly 4 stops or nothing
Frequently Asked Questions
How many stops of light does the ND16 cut, and what does that mean in practice?
It reduces light by exactly 4 stops. If your unfiltered exposure is 1/1000s at f/8, the filter brings you to 1/60s at f/8 — enough to blur moving water in a landscape or open up to f/2 for shallow depth of field in bright sun.
Does the ACCU-ND coating actually keep colors neutral?
Yes, Hoya's ACCU-ND coating is specifically designed to avoid the warm or magenta color shifts common in cheaper ND filters. You'll get a truly neutral reduction, which means less time correcting white balance in post.
Will the low-profile ring cause vignetting on wide-angle lenses?
The slim aluminum ring is designed to minimize vignetting. On 49mm thread lenses — which tend to be standard or short telephoto focal lengths — vignetting is a non-issue. If you're using a step-up ring from a smaller thread to a wider lens, test at your widest focal length.
Can I stack this with a polarizer for even more light reduction?
You can, though stacking filters increases the risk of vignetting on wider lenses and adds two more glass surfaces that can introduce flare. For heavier reduction, consider a dedicated higher-density ND filter for cleaner results.
What lens thread size is this filter?
This is a 49mm filter that threads onto any lens with a 49mm front filter diameter.