Gee, Paul your numbers are a bit out

Try about $A8800 (STL) and $A3400 (5D body...where can you buy a 5D for $1500 ?? I'll buy two

)
But, yes, I agree, the STL11k will cost a whole lot more than a 5D, but that wasn't the point....I could do the same test with a ST2000xm and despite less acreage in the ST, the QE/Noise/Sensitivity would have been similar to the STL at about half the price.
I suppose if there was a point to my comparing the two, was to discover: QE really matters.
For example, with a Marconi Back illuminated chip you loose just 5 or 6 H-Alpha photons out of a hundred, with a bog standard DSLR you loose about 85 of them.
It's pretty brain dead math, with all other aspects being equal, to see one detector will have a serious advantage over another.
Cheers
Peter
Quote:
Originally Posted by Zuts
Hi Peter,
If you are trying to tell us that an 11,000 AUD camera cooled to -15 degrees C takes a better picture than a 1,500 AUD DSLR then I for one have no argument with you.
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