– What does f-stop or aperture number do?
– It determines the depth of sharpness area of the image, or depth of field!
Shallow or wide strips of sharpness are obtained by using different f-stops. Shallow depth of field (using smaller f-stop numbers) means that the area of sharpness is very small and all other objects including nearer or farther objects are blurred in the image. Obviously, larger sharpness area is obtained as depth of field becomes deeper (using larger f-stop numbers). So, you can capture an object in near and far distance as sharp as it is, and leave everything else blurry. In contrast, you can capture a landscape with everything sharp in it, from near to far distance.
Image story: A pleasant Saturday morning walk in Victoria park, Auckland city, New Zealand. End of winter and there was no leaves on trees. These beautiful seeds, like black dots in white lines of tree branches made me think of using a shallow depth of field to capture the beauty of a single dot in a shot! I set the aperture of my lens on its widest, f/4, and shoot a dot. The original background of the image was green and I lightly touched the Hue of background to make this nature paint more eye catching.
– What is the impact of lines in photography?
– Lines contribute to the composition and mood of image!
Lines can create two-dimensional or even delusional three-dimensional environment in an image. Different properties of lines such as their angles, directions, density, curves, color, and thickness can significantly impact on image composition and mode. Although horizontal and vertical lines can create sense of stability, peace of mind, and permanency in an image, other types including perspective, angular, and irregular lines can act completely different as emotional triggers and attention grabbers (read this article for more details). Add to the list, lines can cooperate with other objects to put them in center of attention, push them to background, reduce or emphasis their impact, or simply fill their surrounding space.
Image story: Workers in general, and specifically painters bring peace and beauty into our daily life. I took this photo in Kota Kinabalu, Malaysia in my only trip to East Malaysia. I used parallel vertical lines together with emphasize on blue color to bring sense of peace into the image. On the other hand, I kept the simplicity of the image by removing unnecessary colors. This also helped me to transfer my message that “they bring color into our life, no matter how grey their life might be.”
– How can I shoot rain?
– Adjust shutter speed to convert rain drops to lines!
Shooting in rain is challenging, mainly because of possible gear damage due to wet environment. Also, lightness and contrast are not great in cloudy sky that make it hard to get bright and sharp images. However, every moment of life is worthy to be captured, because of its uniqueness. So, there is no excuses to not to shoot rain! Lets back to the subject, shooting rain! As we discussed before, the most important thing about moving objects is their speed. As the object moves faster, your camera shutter speed has to be faster to freeze it, or you will end up with a blurry object. Rain drops are liquid objects fall from the clouds and if we freeze them by fast enough shutter speed, small pixels of water will be appeared in photo. If you try it out, you will find out that the result is nothing but a noisy image. So, how to capture real rain? It’s simple, slow down shutter speed to convert falling drops to small lines of water. This will help you to show rain in photo the same as we see it by our eyes.
Image story: Malaysian rain is really awesome. True tropical rain that makes you get wet in a few seconds. I took this photo in a rainy afternoon from the balcony of my apartment in level 5. So, there was no problem of getting wet and the height was enough to provide a great view. I used 1/160 sec shutter speed to make small rain lines from fast falling drops of rain. A little post processing made the rain lines clearer and easier to see.
In addition to adjusting shutter speed, there are some other tips that may help you to get better results. Using a tripod may help you to avoid blurry images, since you are slowing down shutter speed based on rain speed. Remember to not to fire flash, because the light will be reflected in water drops and you will get noisy image as a result. If you need more light, lower flash power and use deffuser to reduce the reflection. Adjusting f-stop is based on your desired depth of filed, so do it wisely. Last but not least is that focusing on a near object makes you able to capture nearer rain drops that are seen clearer and brighter.
– How can I shoot a moving object?
– Adjust your camera setting, look for the object path, follow it in view finder, and shoot!
If you like to shoot moving objects like kids, runners, cars, birds etc., this short note may help you to get better results. The most important thing about moving objects is their speed. As the object moves faster, your camera shutter speed have to be faster to freeze it. However, faster shutter speed means that you need brighter light source, higher ISO, or smaller f-stop (larger aperture) to maintain light balance of your image. Usually, this is not a problem in daylight and studio photography, however it would be a concern if you shoot in cloudy sky or at night. In these situation, you may use your camera flash, an external light source, or consider to use higher ISO or smaller f-stop (larger aperture) if possible.
Image story: An amazing afternoon in Ponitian, Johor bahru, Malaysia. I saw this bird standing on a rock, preparing to take off! I looked around to see if it is possible to shoot it during its flight, and yes it was. So, using the shutter speed priority mode, adjusted shutter speed on 1/800 sec, I followed the bird in the camera view finder and shoot it several times during its flight. The sunny sky allowed me to use ISO 100, and the selected shutter speed (1/800 sec) along with f/6.3 (based on my lens aperture at 300 mm) gave me the required depth of field to have a sharp image of the bird from wing to wing. A crop and a little post processing gave me this image that I like to share with you.
After adjusting the camera setting, you should look for the object path. It means that you should be able to answer two questions as “where is it heading to?” and “can you follow it in view finder?”. If you are positive, use your camera view finder to follow the object and shoot. It is important that you be aware of other objects in the scene. For example, a great shot may be distracted by an annoying object in the background. Last but not lease is your decision to use continues or single shooting mode. It’s up to you to select one of them, but you should know that your choice does not have anything to do with shutter speed and blurry images. It means that if you get blurry images, you should re-adjust the camera setting (particularly using faster shutter speed) instead of shooting continuously.