How to focus correctly | TIPS AND ERRORS

Posted by mypdfhub on May 24th, 2019

Focusing means getting the most interesting area of ​​a scene clear. By focusing we get everything that is at the same distance from the interesting area clear, and becoming "pedantic" to focus is to match the rays of light reflected by an object with the sensor of the camera.

What you really focus on is a distance (depth of field), that is, you can make everything focused from your camera up to 2 meters, focus only 1 meter, only 30 centimeters, focus from 5 meters to infinity ... using focal distance, hyperfocal or the opening.

Surely you have verified that when you change the diaphragm of your camera (number f) the distance that appears focused changes, also when you modify the focal length (25mm, 50, 100mm, etc) or when you approach or move away from the object or area you want to focus on .

I will not go into basic things like a diaphragm f / 2.8 has less depth of field than a f / 11, for that visit the digital photography guide and then return to this article to understand everything much better.

Let's see how to focus correctly to stop blaming "cheap" targets or our APS-C or DX camera.

Get sharper pictures

The sharpness has become an obsession, it is true that there are photographic modalities that demand more than others, such as macro or portrait photography, but do not forget that what matters is the photo, at least from my point of view .

Think of a photo of Brassai. Do you think that the maximum sharpness in his photographs was what mattered most to him? Surely if we blur a bit in Photoshop a lot of great photographs, they will still be good photos (now it's when I cross myself).

I mean you do not need to obsess and especially at the beginning with the approach. A good sharpness can help you convey the message of your photograph, such as skin pores or raindrops on the grass, but beyond some cases in my opinion, there are more important aspects to take care of before.

Factors that affect the sharpness of a photograph

Let's see what points affect the focus and sharpness of a photograph, knowing these factors you will know how to make a shot to gain clarity.

• Our technique, the most important factor and in which most often fail, so before thinking about changing objectives or camera, review this point.
• Focus, it seems obvious but many unclear photos are given because it has not focused properly or it has been done at the wrong point.
• Construction of the lens, quality of the lenses.
• The editing of a photograph affects much the clarity of an image, in the edition we can achieve a greater clarity (advanced techniques such as separation of frequencies) or ruin a photo.
• Shutter speed. A photograph made with a slow shutter speed, as you know, is more likely to get out of hand.
• Vibrations Either by a poor grip of the camera or by the blow of the mirror will affect more or less depending on the type of photography you do and the shutter speed you use.
  Diaphragm opening, in closed diaphragms such as f / 11 we will get more sharpness than at f / 2.8, since some lenses lose sharpness at the edges.
• High ISOs and the risk of noise. Especially in low / medium range cameras.
  Dirt of the lenses or the sensor.
• Movement when firing. Pressing the shutter button may cause the camera to move, depending on which photographs it is advisable to use a remote shutter or the timer with the camera placed on a tripod.
  Light also affects the sharpness of an image, as it shapes the objects by isolating them from the background giving a much sharper look to the photograph.also read and download lolita epub