princess paupr’s Reflections

3 Responses to “Yay! New camera!”

1. 1 Alex S. Leung
   Aug 9th, 2007 at 9:19 pm

   Check out a couple short tutorials here:
   http://digital-photography-school.com/blog/iso-settings/
   and this one too.

   Basically, ISO measures the sensitivity of the image sensor.

2. 2 hoimin
   Aug 9th, 2007 at 9:34 pm

   ISO refers to the light capture speed.
   the higher the ISO level, the longer the shutter stays open, the more light gets captured.

   adjust ISO levels depending on your lighting situation. in dark settings, you usually need to crank up the ISO. however, if you have shaky hands like me, these photos end up being blurry because the shutter is open long enough to detect the minute movements. newer cameras have shake-correction.

   basically, ISO is nothing to worry about on a regular basis. just set it to automatic, unless you want a specific effect (graininess).

3. 3 Alex S. Leung
   Aug 12th, 2007 at 11:34 pm

   Jack, you should check your Admin/Comments section more often. My prev comment got held back coz it was flagged as possible spam (too many links in my comment)!

   To correct Herm, ISO has nothing to do with shutter speed. It is the sensitive of the light sensor. (Tho, since your camera is basically all auto, the sensor/chip in your camera automatically adjusts aperture/shutter for you. Using the scene modes controls aperture/shutter somewhat)

   In bright outdoors, you only need ISO 50-100. Any more, your photos will be washed out, because the sensor is too sensitive to light & captures too much of it.

   In dark situations, you may want ISO 200+. Since you cannot control shutter speed or aperture, the only way to get a clear photo of ppl in low-light is by increasing the sensitive of the sensor, increasing the ISO. The downside is grainyness, yes.

   HOWEVER, many of today’s new sensors in the latest digital camera’s can sustain very high ISOs with little grainyness. Modern Nikon or Canon DSLRs can go upto ISO 1600 or 3200, with much less grainyness than before. Your camera (with the 3rd generation Canon sensor) should be less susceptible to the effects of high ISO, but still, it is not possible to eradicate.

   Your camera is the SD750 though.. not the older SD630!

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