13th February 2003, 07:37 AM
Air disturbances cause unsharp shots. How to minimise?
i've been taking more and more shots and have realised that the reason my landscape shots are not as sharp as i want is because of the disturbances in the air...
i notice little waves in the air (not sure if thats the correct term to descibe it) kinda like how the ground looks like on a HOT HOT day, u see like disturbances above the ground... the kinda thing that causes mirages u noe?
i noe my cam is ok, because the closer the image is to me, the less the effect of the air disturbances, and the sharper it is...
anyway, how do i minimise the effect of this disturbance?
i've tried increasing shutter speed and opening up the aperture,
but i think that does more harm than anything...
i've tried half and half (f4, and reasonably fast shutter speed) still not good enuff...
13th February 2003, 08:51 AM
Doubtful that you can do anything about the heat shimmers on the camera. The only thing I can think of is do some post processing to correct for the shimmers. Try taking photos when its cooler? Evening or morning?
13th February 2003, 02:25 PM
i dunno leh..
i am in chicago the temp is arnd -10!!
the heat shimmer i think must come from somewhere else.. i osso dunno where
14th February 2003, 01:50 AM
Is there any snow? IIRC, sun rays hitting snow and reflecting it back can also give you these shimmers.
14th February 2003, 02:23 AM
come to think of it, there IS A LOT OF SNOW...
all over everywhere.. it could be this... i shall try taking on a day w/o snow...
btw any one got any resources about this? how snow affects visibility?
14th February 2003, 05:38 AM
Here is an example of what im talking abt... can someone help me?
ALL SHOTS were taken with SHUTTER + TIMER to ensure that camera shake wasnt a factor..
commentary on each shot is below each photo..
kindly take a look:
Thanks so much!!