Adjustable 37mm Neutral Density Clip-on ND2 - ND400 Phone

Mobile phone chargers can be roughly divided into travel chargers, cradle chargers and maintenance chargers. Generally, users mainly contact the first two. And the most sold on the market is the travel charger.
There are also various forms of travel chargers. The common ones are the cheap duck egg-shaped miniature travel charger, the ordinary desktop card board charger, and the high-end desktop charger with crystal display. Mobile phone charger, also known as: mobile phone adapter, is actually composed of a stable power supply (mainly regulated power supply, providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting. The output parameters marked on the charger (referring to the line charger): such as output 5.0V/1A, output 5.0V/1500mA-11200... refers to the relevant parameters of the internal regulated power supply. Understand this truth, you will know that a (good quality) mobile phone charger is easy to change into a good quality regulated power supply.
The chargers of lithium-ion (li-ion) batteries commonly used in mobile phones use a constant-current and voltage-limited charging system, and the charging current is generally around C2—that is, the charging rate is two hours. For example, a 500mAh is charged at 250mA in about two hours 4. Constant voltage charging after 2V.
The lion is not suitable for the -DV/DT detection fast charging method used by the NIMH advanced fast charger, because the lion has a strict limit on the charging current. Lithium ion (Li+) is very active, and high current charging is prone to danger. The general user contacts are mainly the first two. The most popular travel chargers on the market are travel chargers. There are also various forms of travel chargers. The common ones include cheap duck-egg miniature travel chargers, ordinary desktop card board chargers, and high-end desktop chargers with LCD display. device. In view of the fact that most mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1-3 hours. Many chargers on the market advertise that they are controlled by microcomputers, including some very cheap duck-egg-type miniature travel chargers. In fact, strictly analyzed from the charging circuit, only a small number of chargers can be truly controlled by microcomputers (MCU control). .
Some manufacturers claim to be "microcomputer control" when they use integrated blocks on the charging circuit. In fact, many low-cost design integrated blocks are cheap op amp integrated blocks, while some dedicated charging control integrated blocks have higher unit prices. , generally used in relatively high-end or brand-name chargers. So we can't trust the so-called microcomputer control, especially the cheap products. Many products are similar in appearance but have very different internal circuits, and their performance is also very different.

Feature:

This Fader ND is a compact all-in-one variable neutral density filter that adjusts the amount of light reduction with just the twist of your wrist.

The index marks on the filter let you know exactly the amount of reduction at a glance. Giving you clear and precise shots at whichever density you are using.

It is able to adjust neutral density freely from ND2 to ND400.

It offers you the freedoam the create different neutral density freely.

Description:

Product Category:Phone Camera Filter

This Fader ND is a compact all-in-one variable neutral density filter that adjusts the amount of light reduction with just the twist of your wrist. The index marks on the filter let you know exactly the amount of reduction at a glance. Giving you clear and precise shots at whichever density you are using. It is able to adjust neutral density freely from ND2 to ND400. You only need to carry one single filter with the same capability with ND2, ND4, ND8 ND16 ND32... and ND400. It offers you the freedom the create different neutral density freely.

Features:

Neutral density can be adjusted from ND2 (1 f-stop) to ND400(8+ f-stops) , by rotating the front ring.

Ultra slim frame,only 7mm thickness

Quality AGC Optical Glass

Apply slow shutter speed under strong sunlight exposure.

Large aperture is available to create depth of field easily.

Suitable for dynamic screen, waterfalls, streams, waves, etc.

Index marks on the edge of filter for exact adjustment.

All Materials Used Meet the Requirements of European Union's standard ROHS(Restrictions on Hazardous Substances).

 

Specifications:

Type: Fader ND

Color: Black

Rotating: Yes

Neutral Density Grade: 2 - 400

Material: High Quality Optical Glass+Aluminum Alloy

Packing list:

1x ND Filter

1x Clip

Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.