Yes, You Can Take Amazing Fourth of July Fireworks Photos With Your Phone


Whether you’ve got the latest iPhone 17 Pro, an affordable Android phone like the Nothing Phone 4A Pro or a much older handset, your phone camera is still capable of taking some glorious photos of fireworks this July Fourth. The bright lights and vibrant colors of Independence Day fireworks contrast incredibly well with the dark night skies, making your photos look beautifully dramatic with very little effort on your part. So whether you’re going to a public display or simply letting off a few bangers in your back yard, don’t forget to whip your phone out to capture the moment.

While taking photos at night used to be something you’d need a big DSLR for, today’s best camera phones are capable of taking stunning photos after dark. I’ve been a professional photographer for over a decade and I’ve taken a plethora of fireworks photos in my time — not to mention testing almost every phone on sale today. Here then are my top pro tips on how to take photos of fireworks that are sure to wow your friends. 

Try night mode

With most firework displays taking place at night, you’re likely going to need to use your phone’s night mode to capture a bright image. While some phones, like the iPhone 17 Pro, have night modes that kick in automatically when they detect it’s dark enough, other phones might have a dedicated mode for taking photos at night. Before you head out to your show, make sure you know how to turn on night mode on your phone. 

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Taken with the Xiaomi 14 Ultra, the fireworks aren’t exactly spectacular at Taylor Swift’s Eras tour, but this shot shows the importance of having more compositional elements in your scene than just some fireworks by themselves.

Andrew Lanxon/CNET

Lock the exposure

Night mode is probably going to be the easiest way to get good-looking results with little effort, but it’s not foolproof. Its main problem is that it’ll try to make the whole scene brighter, and that might not look great — those dark skies need to remain dark in order for the fireworks themselves to really stand out. 

If you find night mode shots looking a bit lacklustre, try pressing and holding on an area of the image to lock the exposure, and then use the slider to darken the image until you think it looks good. By locking the exposure like this it’ll stop it resetting back to default after you take each image. If your phone has a pro mode, you can likely set the exposure to a darker point manually. 

Get creative with manual controls

Most phones should be able to snag a great looking image with little extra effort on your part, but sometimes it pays to get a bit creative with your camera settings. One of my favorite tricks for photos of fireworks is to use a long exposure — maybe a second long — which turns the crisp fireworks into light streaks in the sky. It’s a very different look, but I really enjoy the abstract impression it gives. 

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By using a one-second exposure, I was able to blur the motion of the fireworks to create this abstract result.

Andrew Lanxon/CNET

Some cameras have pro modes that give you manual control over shutter speed, but there are various camera apps for both iOS and Android that will give you this functionality. My suggestion? Play around with your settings and see what it does to your images when you press the shutter button — you might be surprised how much you like the effect.

Keep a steady hand

Keeping your phone steady is crucial if you want a sharp image, even when using night mode. Simply holding it firmly can make all the difference. Hold your phone with two hands and keep your elbows tucked in to give you a strong and stable stance. Try taking multiple photos each time as it’ll increase the odds that at least one of them will be nice and sharp.

Although it’s not always as convenient, if you can put your phone or camera on a tripod, you’ll appreciate the extra effort it took to haul that extra gear. 

Think about the composition

While taking a photo of the fireworks by themselves in the sky might look quite cool, you can make your image even more impressive by thinking about the composition within the shot. Try to include foreground details, like other people revelling in the display or interesting buildings or food stands. By including ground features, it gives size context to the fireworks overhead, making them look even bigger and grander by comparison.

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I loved putting this hugging couple in the bottom half of my frame. It tells the story not just of the fireworks, but of the people enjoying them as well.

Andrew Lanxon/CNET

Shoot in raw, edit later

While your phone might capture a great-looking shot with just the tap of the shutter button, I often find that some post-processing in apps like Google’s Snapped or Adobe Lightroom makes all the difference. On my iPhone 17 Pro, I’ll shoot in ProRaw, which gives me deeper control over the colors and contrast in my image later. 

I’ll often adjust the white balance to suit the scene, increase the contrast and maybe even introduce some clarity into the image that can really help those bright details pop in the sky even more. There’s no right or wrong way to edit an image, so my best advice is to spend some time playing with the sliders in your editing app of choice and see what you can come up with. 





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QlikView Mapping – Table of content

What is QlikView Mapping?

QlikView Mapping is incidentally creating a table (mapping table) utilizing information or field values from prior tables from various models and sources. The mapping tables are put away in QlikView’s memory just till the content is implemented and from that point forward, it is naturally removed. Mapping makes a table with arranged information fields and values whose script can be availed in various manners via statements or as functions (Rename Field, MapSubstring(), ApplyMap(), Map… Using and so forth) You can supplant field names or esteems during content execution utilizing mapping.

A Mapping table is made to plan the column values among two tables. It is also known as a Lookup table, that is simply used to search for a value from some other table. There are numerous functions accessible in this Mapping strategy to deal with the database table mapping. Mapping tables or Mapping load fills in as a choice to Join statements in the data set. The lookup value and the mapping value are the two columns in the mapping table. Mapping Tables are transitory tables as they are naturally taken out from the information model before the end of the implementation of the content. 

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QlikView Mapping Load Statement

The Mapping Load statement is utilized to stack fields and values into a newly made mapping table in QlikView. 

Syntax

Mapping(loadstatement | selectstatement)

The term Mapping is utilized as a prefix to LOAD or SELECT proclamations directing the framework to save the stacked fields in the mapping table. A mapping table includes two columns of which, the first includes values for examination (as a kind of reference point) and second includes the outcome or wanted values dependent on the correlation. For example, when country codes are used as the reference section and second resultant column is  nation names. The nation codes will be supplanted by the comparing nation names upon content implementation.

Example for mapping load in QlikView,

// Load mapping table of country codes:

MapCountry:

mapping LOAD * 

Inline [

CountryCode, Country

Sw, Sweden

Ind, India

Chn, China

Ity, Italy,

Cnd, Canada

Dk, Denmark

No, Norway

];

Along these lines, this will stack a mapping table called MapCountry which has two columns, Country and CountryCode. The elements of the given mapping tables can be utilized in turn by planning statements and other operations like ApplyMap. 

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QlikView ApplyMap Function

The QlikView ApplyMap() function brings content from a current mapping table. It also maps the outcome of an expression to a current field from the mapping table. 

Syntax

ApplyMap(‘map_name’, expression [ , default_mapping ] )

Here, map_name is the name given to the pre-existing mapping table. The expression is the field whose outcome must be mapped to a mapping table field. default_mapping is the value, whenever referenced will be returned if there is no match of the field esteems from the current mapping table. The worth is returned all things considered in the output table, if not referenced.

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Example of Qlikview ApplyMap Function

Allow us to improve comprehension of this by the assistance of an example. Consider the one with a similar nation code example as we utilized in the mapping load area.

// Load list of store managers, mapping country code to country

StoreManagers:

LOAD *, 

ApplyMap(‘MapCountry’, CountryCode,’Others’) As Country

Inline [

CountryCode, StoreManager

Sw, John Dalton

Cnd, Mary Robins

Ity, Andrea Russo 

Arg, Harry Gibson 

Dk, William Gilbert

Ind, Indrani Sen

No, Daniel Larsen

Rom, Emilia Mark];

// We don’t need the CountryCode anymore

Drop Field ‘CountryCode’;

The resultant table will look as given below.

From this table, the name of the nation relating to the nation code composed next to the store supervisor name is mapped into the last table utilizing an applymap function. Likewise, those nations (like Arg and Rom) for which there were no reference country names in the table “MapCountry” are composed as “Others”. 

Business Intelligence & Analytics, qlikview-mapping-description-0, Business Intelligence & Analytics, qlikview-mapping-description-1

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Benefit of utilizing Mapping table and ApplyMap Function: 

  • Aids in dodging joins in QlikView. 
  • Aids in diminishing tables from the data model to simplify it, productive and justifiable. 
  • Mapping Table is only there during load. 
  • Missing rows can be dealt with by its third parameter  consequently aids in taking care of the null qualities and utilized in information integrity in ApplyMap Function.
  • It disregards the duplicate rows in the table. 
  • We can utilize composite keys as a critical column in the table. 
  • We can make different maps from a similar table. 
  • It saves processor time and memory. 
  • It cleans the information by eliminating the information disparities.

QlikView Architecture

QlikView is developed with a totally different way to deal with information disclosure than other conventional platforms. It doesn’t initially assemble an inquiry and afterward bring the outcome dependent on the query. It structures relationships between various data objects when it is stacked and prompts the client to investigate the information in any capacity. The information drill down ways can occur toward any path as long as the information is accessible and related. A client can assume a part in making the connection between information components utilizing information modeling approach accessible in QlikView.

Qlikview Mapping Architecture

QlikView’s architecture comprises a front end to picturize the prepared information and a back end to give the security and distribution component for QlikView client records. The image given above portrays the inside working of QlikView. 

Front End

Front end in QlikView can be defined as a browser oriented access point for reviewing the QlikView archives. It includes the QlikView Server, that is fundamentally utilized by the Business clients to get to already made Business Intelligence reports via a web or intranet URL. Business clients investigate and interface with information utilizing this front end and determine decisions about the information. They team up with different clients on a given arrangement of reports by sharing bits of knowledge and investigating information together, continuously or offline. These client archives are in the configuration .qvw, which can be put away in the windows OS as an independent record. The QlikView server in it deals with the customer server correspondence between the client and QlikView backend framework.

Back End 

The QlikView backend comprises QlikView publisher and QlikView desktop. The QlikView desktop can be considered as a wizard-driven Windows environ, that has the highlights to stack and change information from its source. Its simplified element is utilized to make the GUI format of the reports which gets noticeable in the frontend. The record types that are made by the QlikView desktop are put away with an extension of .qvw. These are the documents which are given to the QlikView server in the front end, that serves the clients with other records. .qvw documents can be adjusted to store the information only records, called as .qvd records. They are records that include just the information and not the GUI parts. The QlikView publisher is utilized as a circulation service to convey the .qvw reports among different QlikView servers and clients. It manages the approval and access advantages. It does the immediate stacking of information from the data sources by utilizing the association strings characterized in the .qvw records.

Highlights of QlikView planning 

Some significant highlights of QlikView planning are: 

  • It is like the query function where a field esteem is utilized as a source of reference to another field existing in the mapping table and returns a coordinating outcome. 
  • A mapping table is always made by Mapping Load or Mapping Select prior to applying a Map work. 
  • A mapping table stays briefly in the memory of QlikView till the next time content implementation is finished. It is exited once a content is executed. 
  • The transitory mapping table doesn’t influence the fundamental information tables put away in-memory of QlikView. 
  • Any mapping table can be reviewed and reutilised in a content however many occasions as a client needs. 
  • The principal field is known as a key and the subsequent field or column is alluded to as mapped value ALWAYS. 
  • All the planning necessities can be done in a solitary script.

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Conclusion

The blog dealt with QlikView mapping with QlikView ApplyMap() and mapping load. We get to know more about mapping, how to make mapping tables utilizing the Mapping Select statements or Mapping Load lastly and how to utilize mapping via the ApplyMap() work.

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