continuous shooting question on K 1 II

**aslyfox** · 08-30-2020, 10:12 AM

just received my " experienced " K 1 Il from a forum member

question on the continuous shooting mode

Continuous Shooting Full frame: H: 4.4 fps (70 JPG, 17 RAW) M: 3.0 fps (100 JPG, 20 RAW) L: 0.7 fps (100 JPG, 100 RAW)
APS-C crop: H: 6.4 fps (100 JPG, 50 RAW) M: 3.0 fps (100 JPG, 70 RAW) L: 1.0 fls (100 JPG, 100 RAW)

if I am using two sd cards, one set for RAW the other for JPG

the " speed " is the slower RAW

H: 4.4 fps (70 JPG, 17 RAW)

is that correct ?

stevebrot · 08-30-2020, 10:53 AM

Originally posted by aslyfox

if I am using two sd cards, one set for RAW the other for JPG

the " speed " is the slower RAW

H: 4.4 fps (70 JPG, 17 RAW)

is that correct ?

The speed is 4.4 fps, though buffer depth differs according to output format (70 JPG, 17 RAW). Not having the camera in hand, I would expect significant slowing at 17 frames or perhaps sooner. Are you seeing something different?

Steve

**aslyfox** · 08-30-2020, 10:54 AM

Originally posted by stevebrot

The speed is 4.4 fps, though buffer depth differs according to output format (70 JPG, 17 RAW). Not have the camera in hand, I would expect significant slowing at 17 frames or perhaps sooner. What are you seeing?

Steve

haven't tried it yet on continuous shooting

just reading manual and the excellent e book

to have top " speed " just load one card and have it jpg

do I have it correct ?

stevebrot · 08-30-2020, 11:09 AM

Originally posted by aslyfox

to have top " speed " just load one card and have it jpg

On my K-3, speed (fps) is the same for both JPEG and RAW regardless of card setup. Write buffer depth is the same for RAW and RAW+ (~23 frames) regardless of card setup. Greatest write buffer depth is attained by shooting JPEG only (~60 frames).

Addendum: Things might be different on the K-1ii, considering that the K-3/K-3II is the speed demon and buffer champ among Pentax dSLRs.

Steve

Last edited by stevebrot; 08-30-2020 at 11:35 AM.

Adam · 08-30-2020, 03:59 PM

We've tested the buffer depth here:

Pentax K-1 Review - Performance and Burst Mode | PentaxForums.com Reviews

There is a slight penalty when shooting in split mode, but it's still perfectly usable.

lister6520 · 09-23-2020, 02:14 PM

In theory it should be twice as fast if writing jpegs alternately to the two cards but for some reason it is instead slower. It seems like it is for some reason unable to write simultaneously to both cards. I don't know if that is some hardware limitation (maybe a single SD interface multiplexed between the two cards instead of two separate ones?) or perhaps just some limitation in the firmware that they could fix in a future update.

08-30-2020, 10:12 AM	#1
aslyfox Seeker of Knowledge Join Date: Aug 2016 Location: Topeka, Kansas Photos: Gallery \| Albums Posts: 24,581	continuous shooting question on K 1 II just received my " experienced " K 1 Il from a forum member question on the continuous shooting mode Continuous Shooting Full frame: H: 4.4 fps (70 JPG, 17 RAW) M: 3.0 fps (100 JPG, 20 RAW) L: 0.7 fps (100 JPG, 100 RAW) APS-C crop: H: 6.4 fps (100 JPG, 50 RAW) M: 3.0 fps (100 JPG, 70 RAW) L: 1.0 fls (100 JPG, 100 RAW) if I am using two sd cards, one set for RAW the other for JPG the " speed " is the slower RAW H: 4.4 fps (70 JPG, 17 RAW) is that correct ?

08-30-2020, 10:53 AM	#2
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by aslyfox if I am using two sd cards, one set for RAW the other for JPG the " speed " is the slower RAW H: 4.4 fps (70 JPG, 17 RAW) is that correct ? The speed is 4.4 fps, though buffer depth differs according to output format (70 JPG, 17 RAW). Not having the camera in hand, I would expect significant slowing at 17 frames or perhaps sooner. Are you seeing something different? Steve Last edited by stevebrot; 08-30-2020 at 10:58 AM. Reason: Clarity and word correction

08-30-2020, 03:59 PM	#5
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	We've tested the buffer depth here: Pentax K-1 Review - Performance and Burst Mode \| PentaxForums.com Reviews There is a slight penalty when shooting in split mode, but it's still perfectly usable. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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08-30-2020, 10:54 AM	#3
aslyfox Seeker of Knowledge Join Date: Aug 2016 Location: Topeka, Kansas Photos: Gallery \| Albums Posts: 24,581 Original Poster	Originally posted by stevebrot The speed is 4.4 fps, though buffer depth differs according to output format (70 JPG, 17 RAW). Not have the camera in hand, I would expect significant slowing at 17 frames or perhaps sooner. What are you seeing? Steve haven't tried it yet on continuous shooting just reading manual and the excellent e book to have top " speed " just load one card and have it jpg do I have it correct ?

08-30-2020, 11:09 AM	#4
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by aslyfox to have top " speed " just load one card and have it jpg On my K-3, speed (fps) is the same for both JPEG and RAW regardless of card setup. Write buffer depth is the same for RAW and RAW+ (~23 frames) regardless of card setup. Greatest write buffer depth is attained by shooting JPEG only (~60 frames). Addendum: Things might be different on the K-1ii, considering that the K-3/K-3II is the speed demon and buffer champ among Pentax dSLRs. Steve Last edited by stevebrot; 08-30-2020 at 11:35 AM.

09-23-2020, 02:14 PM	#6
lister6520 Veteran Member Join Date: May 2012 Posts: 733	In theory it should be twice as fast if writing jpegs alternately to the two cards but for some reason it is instead slower. It seems like it is for some reason unable to write simultaneously to both cards. I don't know if that is some hardware limitation (maybe a single SD interface multiplexed between the two cards instead of two separate ones?) or perhaps just some limitation in the firmware that they could fix in a future update.

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