NDx4

For Wider Apertures or Longer Exposures
Available Sizes (mm)
37 40.5 43 46 49 52 55 58 62 67 72 77 82
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Description

TRANSMISSION CURVES

In conditions of extreme light intensity, such as sunshine on snowy mountains or on the beach, or when using a camcorder, ND (Neutral Density) filters are recommended as essential.

Neutral Density filters are often ignored by photographers, but they have several uses and offer the possibility to achieve otherwise unachievable results. ND filters appear grey and reduce the amount of light reaching the film, they have no affect on color balance.

They have four main uses:

  1. To enable slow shutter speeds to be used, especially with fast films, to record movement in subjects such as waterfalls, clouds, cars, seas etc.
  2. To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background.
  3. To decrease the effective ISO of high speed film (ie: above ISO400) and allow it to be used outdoors in blight situations.
  4. To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which would normally cause over-exposure.

Attention: Be aware of counterfeit filters

Attention: Be aware of counterfeit filters

In order to avoid purchasing one of those counterfeit filters we highly recommend to purchase only from official retailers that are recognized by HOYA's official global distributors. Prior the purchase kindly inquire and verify whether a retailer is authorized by HOYA global distributors. You may find the contact in the HOYA global distributors list.

Specifications
General Info
Model
HOYA NDx4
Type
ND
Available Sizes
37, 40.5, 43, 46, 49, 52, 55, 58, 62, 67, 72, 77, 82
Main Characteristics
ND Number (Filter Factor)
4
f-stops
2
Additional Info
Frame Material
Aluminum
Gallery
Associated
Reviews
News
Ambassadors
Description
Specifications
Gallery
Associated
Reviews
News
Ambassadors