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Item specifics
  • Shape: Round
  • Model Number: ND400-40.5mm
Product Description

Item specifics:

Condition:  

New:  A brand-new, unused, unopened, undamaged item in its original packaging

Brand: ROCOLAX

Filter Effects:  ND400

Lens Material:  Germanium Optical Glass 

Ring Material:  Aero Magnalium 

Filter Coated: N/A

To Fit:  Camera,Camcorder

Shape: Circular

Packing List:  Optical Grade ND400 Filter X 1

Now we have ND2, ND4, ND8, ND16, ND100, ND200, ND400, ND1000, ND10000, ND40000, ND100000, ND400000, ND1000000

 

 

Wholesale and bulk purchase Policy:

If you are looking for a bulk purchase,we can provide wholesales price for you.Please contact us if you are interested.

 

Why should I use Neutral Density Filter ?

The use of an ND filter allows the photographer to utilize a larger aperture that is at or below the diffraction limit, which varies depending on the size of the sensory medium (film or digital) and for many cameras, is between f/8 and f/11, with smaller sensory medium sizes needing larger sized apertures, and larger ones able to use smaller apertures.

Instead of reducing the aperture to limit light, the photographer can add a ND filter to limit light, and can then set the shutter speed according to the particular motion desired (blur of water movement, for example) and the aperture set as needed (small aperture for maximum sharpness or large aperture for narrow depth of field (subject in focus and background out of focus). Using a digital camera, the photographer can see the image right away, and can choose the best ND filter to use for the scene being captured by first knowing the best aperture to use for maximum sharpness desired. The shutter speed would be selected by finding the desired blur from subject movement. The camera would be set up for these in manual mode, and then the overall exposure then adjusted darker by adjusting either aperture or shutter speed, noting the number of stops needed to bring the exposure to that which is desired. That offset would then be the amount of stop needed in the ND filter to use for that scene.

 
Examples of this use include:

Blurring water motion (e.g. waterfalls, rivers, oceans). 

Reducing depth of field in very bright light (i.e. daylight). 

When using a flash on a camera with a focal-plane shutter exposure time is limited to the maximum speed -often 1/250th of a second, at best- at which the entire film or sensor is exposed to light at one instant. Without an ND filter this can result in the need to use f8 or higher. 

Using a wider aperture to stay below the diffraction limit. 

Reduce the visibility of moving objects 

Add motion blur to subjects 
Neutral density filters are used to control exposure with mirror-lenses catadioptric optics, since the use of a traditional iris diaphragm increases the ratio of the central obstruction found in those systems leading to poor performance.
 
ROCOLAX ND Filter Test:

 

 
 
 
 
 
More Photos with ROCOLAX ND Filters:
ND400 Filter:
 
 
ND4000 Filter:
 
 
 
 
ND40000 Filter:
 
 

Reasons to Buy From Us:

* Accurate description, NEVER boast of our own product.
* Truely factory outlet price to public, lower profit for us, great save for you.
* All items detail pictures are taken by Professional Photo Studio.Clear and sharp.
* We endeavour to answer all queries everyday,providing excellent customer service.
* We ship everyday,all listing item are turely instock and ready to ship.
* We provide a hassle free transaction. You bid/buy, you pay, we ship, you receive. Everyone is happy.
* All our certain value items are insured before ship out.
* No hassle return/refund/replace.
* We treasure every customer around the world!

 

 

SHIPPING

We ship in two businesses day.


United States packages will be shipped by ePacket First Class Mail, and we provide free and trackable shipping for most US orders except some low value items.

Other international packages will be shipped by China Post First Class International Mail. Most package will be trackable, but some will be trackable when the packages are in China, but no tracking information can be provided once the items leave China.

Most packages will be delivered in 2 weeks, but it could take as long as 6 weeks for internatinoal packages to be delivered. Since the insurance company requires us to wait 50 days before we can report a package loss, we require our buyers to wait same number of days.

Please see more details in the top section for shipping charges.

 

FEEDBACK

We could appreciate a 5-star positive feedback rating and promise the same in return! Should you feel that your products don\'t deserve a 5 star rating in one or more categories, please contact us before leaving negative (1,2 or 3 star) feedback. We will make every effort to ensure 100% satisfiction.

 

WHOLESALE POLICY
If you are looking for a bulk purchase,we can provide wholesales price for you.Please contact us if you are interested.
  

Packaging Details
  • Unit Type: piece
  • Package Weight: 0.06kg (0.13lb.)
  • Package Size: 15cm x 18cm x 5cm (5.91in x 7.09in x 1.97in)
Shipping
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.06kg (0.13lb.)
  • Package Size: 15cm x 18cm x 5cm (5.91in x 7.09in x 1.97in)
Payment
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