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Photographing Fireworks step by step

1. Need a tripod, sutter release cable and camera in manual mode.
2. Set ISO 100, aperture f/11 to f/16
3. sutter speed 6seconds or more.
another option swith your camera in B mode,means Bulb mode.In this mode sutter open as long as you keep sutter button pressed.
4. for focusing -manual focus is good
5. now click your camera for fireworks.

Nikon D750 Specifications

24MP Full-frame CMOS sensor (with AA filter)
Flip up/down 3.2" 1,229k-dot RGBW LCD screen
6.5 fps continuous shooting
Improved 51-point Multi-CAM 3500FX II AF system (sensitive to -3EV)
91,000-pixel RGB metering sensor with face detection and spot-metering linked to AF point
Built-in Wi-Fi
Highlight-weighted metering
1080/60p video recording
Powered aperture for control during live view/video
Group Area AF mode
Simultaneous internal recording and HDMI output

Nikon 28mm f/1.8G ED Specifications

Prime wide-angle perspective and fast f/1.8 aperture delivers great low-light performance.
Nano Crystal Coat effectively reduces ghost and flare.
2 Aspherical Lens Elements virtually eliminate coma and other types of aberration.
Rear Focus (RF) provides smooth and fast autofocus while eliminating front barrel rotation and lens length changes.
Quiet focusing with built-in Silent Wave Motor (SWM).
Two focus modes selectable – M/A and M
Rounded 7-Blade Diaphragm renders natural appearance of out-of-focus image elements.
Mount Type: Nikon F
Focal Length: 28mm
Maximum Aperture: 1.8
Minimum Aperture: 16
Maximum Angle of View (DX-format): 53°
Maximum Angle of View (FX-format): 75°
Maximum Reproduction Ratio: 0.22x
Lens (Elements): 11
Lens (Groups): 9
Compatible Format(s): FX, DX, FX in DX Crop Mode, 35mm Film
Diaphragm Blades: 7
Distance Information: Yes
Nano Crystal Coat: Yes

How to Meter by Eye

The formula for exposure of a middle tone subject on a bright sunny day is f/16, sutter speed 1/125, ISO 100.It is exposure reference point of sunny day.
here is the list of full shutter speeds to 1/1000th of a second:
B (Bulb), 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000.
And here is a list of the full aperture or f-stops up to f/22:
f/1, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22
Now if you increase sutter speed or aperture light will be entering less and if you decrease sutter speed or aperture light will be entering more.But good photography means good exposure.
Here if we change aperture f/16 to f/8 ,means light entering through the lens two stop more,this situation image will be over exposed due to more light, for this we need two stop less light.So we can changed sutter speed 1/125 to 1/500 or we can changeed ISO 100 to 400,because
f/16,1/125,ISO100 = f/8,1/500,ISO100 = f/8,1/125,ISO400
So both exposure is same.

Nikon D610 Specifications

Body type:Mid-size SLR
Max resolution:6016 x 4016
Effective pixels:24 megapixels
Sensor size:Full frame (35.9 x 24 mm)
Sensor type:CMOS
ISO:100 - 6400 in 1, 1/2 or 1/3 EV steps (50 - 25600 with boost)
Lens mount:Nikon F
Articulated LCD:Fixed
Screen size:3.2″
Screen dots:921,000
Min shutter speed:30 sec
Max shutter speed:1/4000 sec
Format:MPEG-4, H.264
Storage types:SD/SDHC/SDXC x 2 slots
USB:USB 2.0 (480 Mbit/sec)
Weight:(inc. batteries) 850 g (1.87 lb / 29.98 oz)
Dimensions:141 x 113 x 82 mm (5.55 x 4.45 x 3.23″)
One of the best camera company pentax announced first full-frame February 2016, As a first child pentax take extra care for this full-frame, For this, customers get very good camera with low price. In India body price now near about Rs.1,23,000

Main Features

1) Resolution : 36.4 megapixels
2) Sensor Size : full frame or 35mm
3) Sensor type : CMOS
4) Color space : sRGB, Adobe RGB
5) ISO : 100-204800
6) image format : RAW, JPEG
7) Image stabilizar in Body : yes, (5 axis sensor shift image stabilization)
8) Auto focus Points : 33 auto focus points where 25 cross type points.
9) Dust proof and weather resistant
10) Wi-Fi in built.
11) mirrorless camera
12) released on april 2016 (for indian need to wait more days)