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If you are new to photography you have probably only recently learned about the concept known as “bokeh”. It is Japanese in origin and refers to blur or a blurry quality, and in photography it is a very recognizable technique.

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Photo by Maarten Elings; ISO 100, f/7.1, 1/80-second exposure.

Let’s first understand the fundamental differences between soft focus and bokeh. In soft focus photography there is an intentional blurriness added to the subject while the actual edges are retained in sharp focus, but in bokeh it is only an element of the image that is intentionally blurred. Additionally, bokeh tends to emphasize certain points of light in the image as well.

Bokeh tends to appear in the areas of an image that remain outside the focal region. Because of this the most common technique used to add it is a shallow depth of field created through a wide open aperture.

In order to create an image that contains what is known as “good” bokeh, the photographer must first find a subject which is easily captured in a close up or short focal distance. For this discussion we’ll select a daffodil blooming in the bright spring sunshine. We will want to be sure that the sun shining down on the bloom is also apparent in the background behind it. This is the way to allow the points of light behind the flower to be forced out of focus and create the round blooms which are so common to images relying on bokeh for their overall effect.

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Photo by Dan Bergstrom; ISO 400, f/5.6, 1/30-second exposure.
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NIKON D300 @ 280mm, ISO 800, 1/250, f/6.3

We’ll position the camera on a tripod and use the manual settings to focus the flower sharply. The next step is to actually un-focus the bloom slightly so that the background is completely blurred, but the flower is still a recognizable item. We must then decide upon the exposure settings for this image, and this involves the proper shutter speed, aperture and ISO.

Because we don’t want any graininess to ruin the prints of this image we will raise the ISO no higher than 400. This means that we will want to also keep the aperture open wider to allow a shorter shutter time too (remember that high ISOs and long shutters are the most common reason for digital noise).

https://youtu.be/iKqd7R-v2qo



For this exposure an f/5.6 is selected and a shutter speed of 125 is what the meter recommends. The wide open aperture creates an even shorter depth of field, and the background that we have already forced into a blur is going to become even more unrecognizable and dotted with brilliant points of light. This is what is referred to commonly as good bokeh.

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NIKON D80 @ 102mm, ISO 100, 1/100, f/2.8

●This Photography is taken by Samsung               Smartphone in Live Focus mode:

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Galaxy S10+ 4.32mm, ISO 100, 1/100s, f/2.4


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Galaxy S10+ 4.32mm, ISO 640, 1/33s, f/1.5


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Galaxy S10+ 4.32mm, ISO 50, 1/848s, f/2.4


The Bokeh Effects Also know as Live Focus and Portrait mode in Smartphones.

Some information is collected from this website.



7 Comments
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THE MOST USEFUL FEATURES INCLUDES ALL LATEST TECHNOLOGY CONCERNS TO THEIR CUSTOMERS
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DEAR FRIENDS, 


I HAVE PURCHASED SAMSUNG M30S MOBILE.


THIS MOBILE SIGNAL RECEPTION IS VERY WEEK. CONFIRMLY I WILL BET SAMSUNG TECHNICAL PEOPLE ALSO WITH 100000/_ REGARDING SIGNAL RECEPTION IS WEAKER THAN OTHER MOBILES LIKE XIAOMI, REALME LIKE CHINESE MOBILES. DONT PURCHASE THIS MOBILES . THEY ARE PROVIDING THEIR ' EXYNOS ' WORST PERFORMING PROCESSORS. THIS IS REAL WHAT I AM TELLING .  BELOW I HAVE GIVEN SIMPLE EXAMPLE FOR YOU.


FOR SAMSUNG S20 MOBILE , THEY ARE PROVIDING THEIR WORST 'EXYNOS' PROCESSORS IN INDIA , FOR THE SAME MOBILE IN AMERICA THEY ARE PROVIDING BEST SNAPDRAGON 865 PROCEESOR . EVEN THEIR KOREAN PEOPLE ALSO HATED THE SAMSUNG 'EXYNOS' PROCESSOR PERFORMANCE IN ' SAMSUNG S20 ' MOBILE. 


AND THEIR SERVICE ALSO VERY WORST. TODAY I VISITED THEIR SERVICE CENTRE  TO RECTIFY THE CHARGING PORT PROBLEM  , HE TOLD THAT IT WILL TAKE ONE WEEK TO 10 DAYS TO RECTIFY THE PROBLEM . THIS IS A SMALL PROBLEM .  I TOLD HIM TAKE THE COMPLAINT , AND GIVE MY MOBILE BACK , AFTER ONE WEEK   I WILL COME AND I WILL GIVE THE MOBILE AND RECTIFY THE MOBILE WITH NEW PART . HE REFUSED FOR THE SAME . REGARDING THIS ALSO I CALLED THEIR CUSTOMER CARE , THEY ARE NOT ABLE TO TELL WHERE THE PART AVAILABLE TO THE NEAREST SERVICE CENTRE IN GUNTUR DISTRICT. 


OTHER COMPANIES ARE DOING SMALL PROBLEMS WITH IN ONE DAY. BUT SAMSUNG IS TAKING 10 DAYS . THIS MUCH OF WORST THEY ARE DOING SERVICE. 


THEY ARE RELEASING NUMBER OF MODELS WITH SAME PROCESSOR 'EXYNOS 9611' BUT NOT MAINTAINING PROPER SPARE PARTS AT THEIR SERVICE CENTERS . THEIR SERVICE CENTER PEOPLE ARE BEHAVING LIKE GAZITTED OFFICERS. FIRST OF ALL THIS IS THE MAIN PROBLEM WITH SAMSUNG.

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Bro tell me what can i do for you?
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all pics are just awsmmm
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thanks bro
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Active Level 3
Very nice and very informative post
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Thank you
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