Red, blue, and (a few) green pixels in long exposure shot

[chanjyj]

wildcat | My point is, even with LENR turned off, it shouldn't be all over the place - as in the girl's 10-hour exposure, that would mean that she needs 20 hours in total which she mentioned she did not use.

It is physically not possible. Either she is lying or you heard wrongly.

 

[wkteoh]

Not sure. Gotta ask her again - probably a bad example to quote from anyway.

I'm not trying to prove any point. I'm just trying to find out if
a) it's normal to have this level of hot pixels with barely 14-minutes of exposure without LENR?
b) if it is, do they always have to use LENR for star trails - what if the exposure is 1 or 2 hours or more?
c) what are the alternatives (what PP steps?) to removing those hot pixels if say, battery runs out

Hope this is more articulate.

 

[egnaro]

wildcat | My point is, even with LENR turned off, it shouldn't be all over the place - as in the girl's 10-hour exposure, that would mean that she needs 20 hours in total which she mentioned she did not use.

I think she might be using film SLR...

 

[egnaro]

Not sure. Gotta ask her again - probably a bad example to quote from anyway.

I'm not trying to prove any point. I'm just trying to find out if
a) it's normal to have this level of hot pixels with barely 14-minutes of exposure without LENR?
b) if it is, do they always have to use LENR for star trails - what if the exposure is 1 or 2 hours or more?
c) what are the alternatives (what PP steps?) to removing those hot pixels if say, battery runs out

Hope this is more articulate.

I think to solve the problem, you have to use ASA50 on Film SLR.