Projektora objektīvs NEC NP40ZL PA653U PA653UL PA703W PA803U PA803UL PA853W PA903X

Objektīva projicēšanas distance: The maximum length at which an image can be projected.

20,8 - 12

Sviediena attiecība:

0.79-1.11: 1

Tāllummaiņas attiecība: Measures how much the camera can adjust its focus for distance shots. A 3x zoom ratio changes the camera's focal length by a factor of three, from 35 mm to 105 mm for example.

1,4

Zīmolu saderība: What other brands this brand can be used with.

NEC

Svars&dimensijas

Svars: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.

1.63 kg

Loģistiskie dati

Harmonizētās sistēmas (HS) kods:

90021100

Dizains

Produkta krāsa: The colour e.g. red, blue, green, black, white.

Melns

Darbības rādītāji

Savietojamība: The other products, software and hardware this product can be used with.

PA653U, PA653UL, PA703W, PA803U, PA803UL, PA853W, PA903X

Objektīva sistēma

Fokusa garums: Measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus. A system with a shorter focal length has greater optical power than one with a long focal length; that is, it bends the rays more strongly, bringing them to a focus in a shorter distance.For an optical system in air, the effective focal length (f and f′) gives the distance from the front and rear principal planes (H and H′) to the corresponding focal points (F and F′).

13.3 - 18.6

Diafragmas atvēruma diapazons: Aperture range of the device's optics, expressed in f-stops.

2 - 2,5