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RonHendriks1966 · 10-29-2010, 07:41 AM

Originally posted by deadwolfbones

I'm trying to imagine a situation in which I'd be shooting in high-speed burst mode in dim lighting—failing to come up with anything.

Well for sports offcourse as a main issue. I did some volleybal international game between The Netherlands and Cuba 2 weeks ago (at the time they are in Japan for the World Cup) in what is in The Netherlands the best indoor sportsarena as it comes to light. All other venues have less light, so I would like to use the K-5 at burst mode and high iso (iso 2500).

And many other shots from that game.

ogl · 10-29-2010, 07:41 AM

Originally posted by JohnBee

What the …
How can this be?
Did they reduce the image to 12bit?

I hope someone who knows more can chime-in on this !
Has anyone tried it?

If this is truly the case, then I'm done with the D700(I can finally sell it)

No any problems. The same firmware was for Sony A100. They can change the algorithm of writing files. Even without 12-bit.

ogl · 10-29-2010, 07:46 AM

Originally posted by Priyantha Bleeker

The Nikon D7000 does 15 Images compressed NEF in 12bit and 12 Images compressed NEF in 14Bit

This all @ 6fps

Nikon D7000 has 10 NEF in 14-bit mode without compression

JohnBee · 10-29-2010, 07:49 AM

Originally posted by ogl

Nikon D7000 has 10 NEF in 14-bit mode without compression

It seems to be even less than that based on what users have written on DPReview forums.

fr. DPReview

Originally posted by BaldBruce:

Hello, Have two 16g Sandisk extreme class 10 / 30m/s cards for my d7000. Using a customize sport setting the picture buffer shows 8 available and set the shooting mode to CH. Holding the shutter down, the camera ran through over 30 shots and the picture buffer never dropped below 5. I shot XC and track so speed is important and these cards are great.

rawr · 10-29-2010, 07:52 AM

After the new firmware arrives, it would be handy to see a table similar to this (from the D7000 manual) in the K-5 manual or elsewhere:

At the moment the K-5 manual description (p151-152) of continuous shooting is a bit thin on that sort of detail.

JohnBee · 10-29-2010, 07:55 AM

Here's another:

Fr. DPReview

Quote:

didn't time it exactly but it seems to shoot at or close to 6 fps at 14 bit RAW on CH mode, but unlike the '100 jpgs in a row' state by manufacturer, even with a class 10 SD card in place, it seems to pause after 8 or 9 shots to give time for the memory buffer to clear out before it resumes rapid burst shooting again. Makes sense to me. Each 14 bit RAW file is about 20 MB give or take...

JackBak · 10-29-2010, 08:48 AM

Originally posted by JohnBee

Here's another:

Fr. DPReview
"didn't time it exactly but it seems to shoot at or close to 6 fps at 14 bit RAW on CH mode, but unlike the '100 jpgs in a row' state by manufacturer, even with a class 10 SD card in place, it seems to pause after 8 or 9 shots to give time for the memory buffer to clear out before it resumes rapid burst shooting again. Makes sense to me. Each 14 bit RAW file is about 20 MB give or take... "

Boy if that is what Nikon is doing I'm surprised even back to the days of CP/M (no smirking) you could "clear" (delete) a file by writing one byte to the file table (was is called the FAT table in CP/M?).

You don't have to clear the buffer memory just set a "dirty" bit.

Ahhhh, unless by clearing out buffer memory they really mean a complete write to the SD card.

Last edited by JackBak; 10-29-2010 at 08:50 AM. Reason: Light bulb turned on

Eruditass · 10-29-2010, 08:52 AM

By "clear" I think it's safe to assume "write to disk so you can overwrite"

JackBak · 10-29-2010, 08:53 AM

Originally posted by Eruditass

By "clear" I think it's safe to assume "write to disk so you can overwrite"

"Write" you are. Still working on my first cup of coffee.

kittykat46 · 10-29-2010, 10:10 AM

Originally posted by JackBak

Boy if that is what Nikon is doing I'm surprised even back to the days of CP/M (no smirking) you could "clear" (delete) a file by writing one byte to the file table (was is called the FAT table in CP/M?).

You don't have to clear the buffer memory just set a "dirty" bit.

Ahhhh, unless by clearing out buffer memory they really mean a complete write to the SD card.

Were you CP/M programmer ?

I toyed around with no-brand Z80 machine in my student days....it was already obsolete at the time, but interesting to tinker with.

JackBak · 10-29-2010, 11:11 AM

Originally posted by kittykat46

Were you CP/M programmer ?

I toyed around with no-brand Z80 machine in my student days....it was already obsolete at the time, but interesting to tinker with.

Dear Lord here we go. Yes, C and assembly, CP/M, DR-DOS, MSDOS,WINxx, LINUX, embedded RTOSes. Too much on my CV I'm not even mentioning things anymore.

creampuff · 10-29-2010, 03:56 PM

Originally posted by kittykat46

Falk Lumo has written an interesting take on this
https://www.pentaxforums.com/forums/pentax-news-rumors/120228-announced-firmw...ate-k-5-a.html

I would still want the 14 Bit RAW for the highest quality still shots, but a selectable 12 Bits would be a very acceptable trade-off to get 22 frames buffer.

Well, the Pentax reps at Photokina (and the printed brochure) did mention the final RAW buffer would be higher than the 8 frames, but today's announcement is the first official commitment from Pentax.

Well all that is stated is just pure conjecture and I wouldn't give too much credence until someone can actually prove it is the case. Too much hypothetical pseudo science imo.

secateurs · 10-29-2010, 08:37 PM

Originally posted by kittykat46

I toyed around with no-brand Z80 machine in my student days....it was already obsolete at the time, but interesting to tinker with.

Ah, the good old Z80! In my day we only did minimal basic programming with the Z80, then we moved to the PIC1684 for the rest.

Col · 10-30-2010, 01:09 AM

Originally posted by secateurs

Ah, the good old Z80! In my day we only did minimal basic programming with the Z80, then we moved to the PIC1684 for the rest.

Yeah, POP HL man.

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10-29-2010, 07:41 AM	#121
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	Originally posted by deadwolfbones I'm trying to imagine a situation in which I'd be shooting in high-speed burst mode in dim lighting—failing to come up with anything. Well for sports offcourse as a main issue. I did some volleybal international game between The Netherlands and Cuba 2 weeks ago (at the time they are in Japan for the World Cup) in what is in The Netherlands the best indoor sportsarena as it comes to light. All other venues have less light, so I would like to use the K-5 at burst mode and high iso (iso 2500). And many other shots from that game.

10-29-2010, 07:41 AM	#122
ogl Banned Join Date: Dec 2007 Location: Sankt Peterburg Photos: Gallery \| Albums Posts: 8,382	Originally posted by JohnBee What the … How can this be? Did they reduce the image to 12bit? I hope someone who knows more can chime-in on this ! Has anyone tried it? If this is truly the case, then I'm done with the D700(I can finally sell it) No any problems. The same firmware was for Sony A100. They can change the algorithm of writing files. Even without 12-bit.

10-29-2010, 07:46 AM	#123
ogl Banned Join Date: Dec 2007 Location: Sankt Peterburg Photos: Gallery \| Albums Posts: 8,382	Originally posted by Priyantha Bleeker The Nikon D7000 does 15 Images compressed NEF in 12bit and 12 Images compressed NEF in 14Bit This all @ 6fps Nikon D7000 has 10 NEF in 14-bit mode without compression

10-29-2010, 07:49 AM	#124
JohnBee Veteran Member Join Date: Sep 2008 Location: Newrfoundland Photos: Albums Posts: 4,667	Originally posted by ogl Nikon D7000 has 10 NEF in 14-bit mode without compression It seems to be even less than that based on what users have written on DPReview forums. *fr. DPReview* Originally posted by BaldBruce: Hello, Have two 16g Sandisk extreme class 10 / 30m/s cards for my d7000. Using a customize sport setting the picture buffer shows 8 available and set the shooting mode to CH. Holding the shutter down, the camera ran through over 30 shots and the picture buffer never dropped below 5. I shot XC and track so speed is important and these cards are great.

10-29-2010, 07:52 AM	#125
rawr Veteran Member Join Date: Jun 2009 Posts: 11,913	After the new firmware arrives, it would be handy to see a table similar to this (from the D7000 manual) in the K-5 manual or elsewhere: At the moment the K-5 manual description (p151-152) of continuous shooting is a bit thin on that sort of detail.

10-29-2010, 07:55 AM	#126
JohnBee Veteran Member Join Date: Sep 2008 Location: Newrfoundland Photos: Albums Posts: 4,667	Here's another: *Fr. DPReview* Quote: didn't time it exactly but it seems to shoot at or close to 6 fps at 14 bit RAW on CH mode, but unlike the '100 jpgs in a row' state by manufacturer, even with a class 10 SD card in place, it seems to pause after 8 or 9 shots to give time for the memory buffer to clear out before it resumes rapid burst shooting again. Makes sense to me. Each 14 bit RAW file is about 20 MB give or take...

10-29-2010, 08:48 AM	#127
JackBak Forum Member Join Date: Jul 2008 Location: Boulder, Colorado Posts: 88	Originally posted by JohnBee Here's another: *Fr. DPReview* "didn't time it exactly but it seems to shoot at or close to 6 fps at 14 bit RAW on CH mode, but unlike the '100 jpgs in a row' state by manufacturer, even with a class 10 SD card in place, it seems to pause after 8 or 9 shots to give time for the memory buffer to clear out before it resumes rapid burst shooting again. Makes sense to me. Each 14 bit RAW file is about 20 MB give or take... " Boy if that is what Nikon is doing I'm surprised even back to the days of CP/M (no smirking) you could "clear" (delete) a file by writing one byte to the file table (was is called the FAT table in CP/M?). You don't have to clear the buffer memory just set a "dirty" bit. Ahhhh, unless by clearing out buffer memory they really mean a complete write to the SD card. Last edited by JackBak; 10-29-2010 at 08:50 AM. Reason: Light bulb turned on

10-29-2010, 08:52 AM	#128
Eruditass Veteran Member Join Date: Jul 2009 Photos: Gallery Posts: 2,207	By "clear" I think it's safe to assume "write to disk so you can overwrite"

10-29-2010, 08:53 AM	#129
JackBak Forum Member Join Date: Jul 2008 Location: Boulder, Colorado Posts: 88	Originally posted by Eruditass By "clear" I think it's safe to assume "write to disk so you can overwrite" "Write" you are. Still working on my first cup of coffee.

10-29-2010, 10:10 AM	#130
kittykat46 Veteran Member Join Date: Dec 2007 Posts: 923	Originally posted by JackBak Boy if that is what Nikon is doing I'm surprised even back to the days of CP/M (no smirking) you could "clear" (delete) a file by writing one byte to the file table (was is called the FAT table in CP/M?). You don't have to clear the buffer memory just set a "dirty" bit. Ahhhh, unless by clearing out buffer memory they really mean a complete write to the SD card. Were you CP/M programmer ? I toyed around with no-brand Z80 machine in my student days....it was already obsolete at the time, but interesting to tinker with.

10-29-2010, 11:11 AM	#131
JackBak Forum Member Join Date: Jul 2008 Location: Boulder, Colorado Posts: 88	Originally posted by kittykat46 Were you CP/M programmer ? I toyed around with no-brand Z80 machine in my student days....it was already obsolete at the time, but interesting to tinker with. Dear Lord here we go. Yes, C and assembly, CP/M, DR-DOS, MSDOS,WINxx, LINUX, embedded RTOSes. Too much on my CV I'm not even mentioning things anymore.

10-29-2010, 03:56 PM	#132
creampuff Veteran Member Join Date: May 2007 Location: Singapore Photos: Gallery Posts: 3,953	Originally posted by kittykat46 Falk Lumo has written an interesting take on this https://www.pentaxforums.com/forums/pentax-news-rumors/120228-announced-firmw...ate-k-5-a.html I would still want the 14 Bit RAW for the highest quality still shots, but a selectable 12 Bits would be a very acceptable trade-off to get 22 frames buffer. Well, the Pentax reps at Photokina (and the printed brochure) did mention the final RAW buffer would be higher than the 8 frames, but today's announcement is the first official commitment from Pentax. Well all that is stated is just pure conjecture and I wouldn't give too much credence until someone can actually prove it is the case. Too much hypothetical pseudo science imo.

10-29-2010, 08:37 PM	#133
secateurs Senior Member Join Date: Oct 2010 Location: Adelaide, Australia Photos: Albums Posts: 250	Originally posted by kittykat46 I toyed around with no-brand Z80 machine in my student days....it was already obsolete at the time, but interesting to tinker with. Ah, the good old Z80! In my day we only did minimal basic programming with the Z80, then we moved to the PIC1684 for the rest.

10-30-2010, 01:09 AM	#134
Col Veteran Member Join Date: Apr 2007 Location: Stansted Essex Photos: Gallery Posts: 614	Originally posted by secateurs Ah, the good old Z80! In my day we only did minimal basic programming with the Z80, then we moved to the PIC1684 for the rest. Yeah, POP HL man.

K5 Buffer

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