K-3 vs K-5 II write speed

biz-engineer · 09-27-2015, 11:36 PM

Originally posted by mee

It could be resolved internally though hidden buffers and/or asynchronous writing to the cards I'd suspect.. but this is neither here nor there since it isn't doing that.

Yes, technically can be improved, but not reduced to zero. In fact, ultimately, when the buffer is full, the fastest transfer rate is the lowest rate in the chain, which ultimately is the SD card. What Pentax could have implemented is parallel writing of different photos into the two SD cards (at the moment, if you select the two SD cards, the camera does not take advantage of it; it's basically the same speed as using one SD card).

Originally posted by mee

I don't want to get into the details of explaining to you my purposes because then you'll make it into a debate.

Ok, not problem.

mbrbrand · 03-09-2021, 07:16 PM

Hi, I know this thread is old but I’m wondering if anyone has found that newer firmware updates have improved read/write speeds for Pentax K-5 iis. If write speeds are slower than most newer UHS SDXC cards, I’m wondering if it’s a hindrance to performance to have a higher capacity SDXC (e.g. 256 GB) even if it can’t write to the card at 300 MB/s (or whatever). Thanks!

Kunzite · 03-11-2021, 11:06 AM

You can see for yourself here:
Latest K-5II/K-5IIs Firmware Update : Software Downloads | RICOH IMAGING
There's no mention of improved card write speed. And anyway, the hardware itself is slow... sorry, I guess you'll have to save for the K-3iii

(careful, not the K-3II nor the K-3)

**UncleVanya** · 03-12-2021, 09:35 AM

Originally posted by mbrbrand

Hi, I know this thread is old but I’m wondering if anyone has found that newer firmware updates have improved read/write speeds for Pentax K-5 iis. If write speeds are slower than most newer UHS SDXC cards, I’m wondering if it’s a hindrance to performance to have a higher capacity SDXC (e.g. 256 GB) even if it can’t write to the card at 300 MB/s (or whatever). Thanks!

Based on this I don’t think card size affects speed.

Does memory card capacity affect either speed or battery life? - Samsung Galaxy Centura | Android Forums

So use whatever capacity is good for you.

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09-27-2015, 11:36 PM	#16
biz-engineer Pentaxian Join Date: Feb 2015 Photos: Gallery Posts: 12,239	Originally posted by mee It could be resolved internally though hidden buffers and/or asynchronous writing to the cards I'd suspect.. but this is neither here nor there since it isn't doing that. Yes, technically can be improved, but not reduced to zero. In fact, ultimately, when the buffer is full, the fastest transfer rate is the lowest rate in the chain, which ultimately is the SD card. What Pentax could have implemented is parallel writing of different photos into the two SD cards (at the moment, if you select the two SD cards, the camera does not take advantage of it; it's basically the same speed as using one SD card). Originally posted by mee I don't want to get into the details of explaining to you my purposes because then you'll make it into a debate. Ok, not problem.

03-09-2021, 07:16 PM	#17
mbrbrand New Member Join Date: Feb 2021 Location: Utah Photos: Gallery Posts: 2	Hi, I know this thread is old but I’m wondering if anyone has found that newer firmware updates have improved read/write speeds for Pentax K-5 iis. If write speeds are slower than most newer UHS SDXC cards, I’m wondering if it’s a hindrance to performance to have a higher capacity SDXC (e.g. 256 GB) even if it can’t write to the card at 300 MB/s (or whatever). Thanks!

03-11-2021, 11:06 AM	#18
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	You can see for yourself here: Latest K-5II/K-5IIs Firmware Update : Software Downloads \| RICOH IMAGING There's no mention of improved card write speed. And anyway, the hardware itself is slow... sorry, I guess you'll have to save for the K-3iii (careful, not the K-3II nor the K-3)

03-12-2021, 09:35 AM	#19
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,446	Originally posted by mbrbrand Hi, I know this thread is old but I’m wondering if anyone has found that newer firmware updates have improved read/write speeds for Pentax K-5 iis. If write speeds are slower than most newer UHS SDXC cards, I’m wondering if it’s a hindrance to performance to have a higher capacity SDXC (e.g. 256 GB) even if it can’t write to the card at 300 MB/s (or whatever). Thanks! Based on this I don’t think card size affects speed. Does memory card capacity affect either speed or battery life? - Samsung Galaxy Centura \| Android Forums So use whatever capacity is good for you.