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Samyang 12mm F2 NCS CS - asymmetric coma?
#20
LR supports multithread processing, at least up to a certain point: I see that most of the CPUs are engaged, even though far less than 100%. I suppose it's deliberate, to let the computer be responsive. In any case, projecting the CPU engagement at 100%, the related I/O figure is still far below the top speed of the SSD.

 

I don't use 1:1 previews all the time: only the first time I work on a batch, because I do a lot of pruning among similar shots, and it's much faster to have all the previews pre-computed (when I do something else) and then going quickly through the comparisons. After this phase, I delete them.

 

The same considerations about speed hold true, just changing numbers a bit, for writing.

stoppingdown.net

 

Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2 
Plus some legacy Nikkor lenses.
  


Messages In This Thread
Samyang 12mm F2 NCS CS - asymmetric coma? - by davidmanze - 08-15-2016, 12:14 PM
Samyang 12mm F2 NCS CS - asymmetric coma? - by davidmanze - 08-15-2016, 12:17 PM
Samyang 12mm F2 NCS CS - asymmetric coma? - by davidmanze - 08-16-2016, 02:12 PM
Samyang 12mm F2 NCS CS - asymmetric coma? - by stoppingdown - 08-18-2016, 12:18 PM

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