Originally posted by lotech Hi there,
AFAIK sensor with larger pixel size gather light better, so I wonder if it is possible to combine pixels thus reduced resolution will have the same effect ? I am talking about s/w process, say, combine 4 pixels into one in a 24M sensor like the K3 to make it a 6M one to improve low light sensitive, can that be done if I can sacrifice high shutter speed and anti vibration ? if I remember right this is no news some cameras actually have this option built in but I can't recall which one and why no longer used in new models it is just a s/w thing ?
Downsampling is a common noise reduction technique. You can certainly use it (in post) to get clean-looking lower res files.
Or better yet, as others have mentioned, combining multiple exposures can further help reduce noise while maintaining high resolution.
Adam
PentaxForums.com Webmaster (
Site Usage Guide |
Site Help |
My Photography)
PentaxForums.com server and development costs are user-supported. You can help cover these costs by
donating or purchasing one of our
Pentax eBooks. Or, buy your photo gear from our affiliates,
Adorama,
B&H Photo,
KEH, or
Topaz Labs, and get
FREE Marketplace access - click here to see how! Trusted Pentax retailers: