[EMAIL PROTECTED] wrote: > On 10/09/06, Gonz <[EMAIL PROTECTED]> wrote: > > >>So is the limitation the number of photons available, or the amount of >>photons that actually get captured and detected? I.e. if the sensor can >>hold 65K photons, were there many more than this many that it could have >>captured? 65K photons sounds like a measly amount in terms of such a >>small particle. >
The 65K photons/photosite holding part I understand completely. What troubles me is that figure (x2 for the 50% efficiency) for the actual number of photons landing on that spot in the chip. It just seems like a mind boggling small number compared to the usual numbers we talk about when dealing with atoms and such (remember 6.023e23 Avogadros #). I guess maybe its due to the photosite being so small and the time being so short (shutter speed)? > > See the following tables: > > http://www.britastro.org/vss/ccdtable.html > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
