K-5 SDHC write speeds
Posted 21/01/2011 - 22:08
Link
the cards are faster than rated. The C10 seems to hit around 20MB/s. From this (with a bit of spreadsheet work) it would appear that there is around 500MB of buffer cache in the K5 (assuming DNG sizes of 22.5MB).
Not too shabby....
Bret
Not too shabby....
Bret
my pics: link
my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.
my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.
Posted 21/01/2011 - 22:23
Link
the DNGs were about 9.5Mb @ ISO 80 ( lenscap o )
@ ISO 51200 they can over 30Mb
@ ISO 51200 they can over 30Mb
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 21/01/2011 - 22:54
Link
in that case the cards are only just up to spec.... wow. So that would also imply 256MB of cache. Fair enough.
Bret
Bret
my pics: link
my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.
my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.
Posted 22/01/2011 - 00:59
Link
bretti_kivi wrote:
in that case the cards are only just up to spec.... wow. So that would also imply 256MB of cache. Fair enough.
Bret
I'll try again and use 51200 with the cap off and see how many and how long! .... hang on .....in that case the cards are only just up to spec.... wow. So that would also imply 256MB of cache. Fair enough.
Bret
hmmmm - this time it took 22 before before the buffer filled up and took 52 seconds to write to card. Most DNGs were around 28.5Mb
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 22/01/2011 - 02:01
Link
using the latest firmware I noticed that I can take about 25 RAW+ in 4star before the camera needs about 20sec to write all on the card.
Kind regards
SmutjeUK
It's nice to be nice!
Pentax K-5 with D-GB4 Grip, to many lenses to mention by now (serious LBA by now), TC's, Lowepro Slingshot 300 AW, Manfrotto 028 & Redsnapper RS-283 with various Heads plus various Camera Clamps (I collect them). Pentax AF 360FGZ, Pentax AF 240FT, several Metz 45 CT-1 & 5 with stands and 'Blow Up' Soft Boxes, Flash Triggers, and various Macro gear.
SmutjeUK
It's nice to be nice!
Pentax K-5 with D-GB4 Grip, to many lenses to mention by now (serious LBA by now), TC's, Lowepro Slingshot 300 AW, Manfrotto 028 & Redsnapper RS-283 with various Heads plus various Camera Clamps (I collect them). Pentax AF 360FGZ, Pentax AF 240FT, several Metz 45 CT-1 & 5 with stands and 'Blow Up' Soft Boxes, Flash Triggers, and various Macro gear.
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7671 posts
16 years
Smegland
both cards were Ultima Pro.
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283