Showing posts with label Lower SS. droplets. Show all posts
Showing posts with label Lower SS. droplets. Show all posts

Sunday, July 31, 2011

NOISE /GRAINS IN MODERN SENSOR DCAMs


The photo uploaded here is shot with a compact dcam at ISO 400, which inevitably shows the grain when enlarged to 100%. The face of my grand son I picked up from the full frame. The details look merged. My point here is that in compacts if we go above ISO 200, the noise appears. The compacts are sold more so concern for general public. However, if you use prosumers or DSLRs, this problem will arise at ISO 800 and above. During film days the photographers generally got the film rating at ISO 100 for most purposes and for professionals ISO 200 and 400 were readily available in small towns too. So most of photographers used ISO 100 film and got best results and enlargements in weddings, travels and all functions, with good sunlight and bright shadows or indoor or outdoor with good brands of powerful flashguns....

The improvement I made in the image by denoising and slight sharpening it, so my worry of getting a grainy/noisy pic is reduced
and I can get a good enlargement of the full image shot on the small sensor of a compact camera....The sensor size is the main issue of having noisy results because of the compactness/thinness of the small cameras. SO IF YOU shoot with a compact, shoot at the minimum noise level set by the manufacturer i.e. may be ISO 80 or 100. The pros who use DSLRs are aware of the problem and therefore set and shoot according to their requirements.

Wednesday, November 10, 2010

VIEW LIGHT BEFORE CLICKING.

Here in the position of the car, the light is low because of clouds and adjacent trees...Yes low lighting is tricky and challenging. U need to apply all ur understanding to find out the right exposure without missing ur subject from clicking..U may encounter low light situations when photographing cityscapes in the evening, during rains with heavy clouds or in dusk and night time. Besides this may happen in private lowlit parties and events....THE LIGHT WILL NEED BIGGER APERTURE to allow maximum of light to pass thru camera to sensor....If this does not work and u get still underexposed photos, try to decrease the shutter speed to low which because of dull light, may be at lower side. Here, u will require a tripod. the most essential help in trouble....The other thing remains to satiate ur desire to capture the low light photograph, is to increase the ISO setting on the camera...This will increase chances of u getting more slower shutter speed for perfect exposures....therefore u can come home with some good stuff....In the photo of the car above, i used evaluative metering which read most of the light falling on the car body, then i did one stop minus exposure compensation to have subdued whites.

Wednesday, September 16, 2009

WATER PHOTOGRAPHY


Water is perhaps one of the most commonly photographed subjects -from waterfalls to ripples, waves, reflections, rivers, lakes, sea and so much more.

2. U can be extremely creative to exposures to bring out different images--use short exposures to freeze water in motion- unexpected shapes and droplets will reveal themselves...

3. In daylight add a Neutral Density filter to increase exposure times and give moving water a glossy marble effect....At dusk or night, u can achieve similar effects without the filter....

4. Try different shutter speeds to control the amount of effect u will achieve....U CAN CHOOSE COMPOSITIONS AND VANTAGE POINTS THAT WILL MAKE IT look like a water is coming right out of the image....Don't ignore rivers and falls in winter, when freezing temperatures turn swirling flows into excellent frozen shapes......The techniques are not difficult, but need some practise before venturing into thr job...