Re: K-30 vs K-5
The difference in detail between the 12 and 14-bit images is far from minimal. Rick http://photo.net/photos/RickW - Original Message - From: David Parsons parsons.da...@gmail.com To: Pentax-Discuss Mail List pdml@pdml.net Cc: Sent: Tuesday, May 22, 2012 10:17 PM Subject: Re: K-30 vs K-5 In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit.html Bit depth does not equal stops of DR. On Tue, May 22, 2012 at 8:20 PM, Larry Colen l...@red4est.com wrote: On May 22, 2012, at 3:43 PM, steve harley wrote: on 2012-05-22 11:31 Rick Womer wrote I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. that concerns me too, but somehow dxomark rates the dynamic range of the K 01 12.9 Evs vs 14.1 Evs for K-5 — just over a stop of difference rather than the two stops that the data path would support, but still a significant difference (it would seem odd that 12 bits can support almost 13 stops of dynamic range; i suspect that some sort of dynamic range compression is used, or that i don't understand dxomark's measurement system) I think that it can measure 13 stops of dynamic range, but with only 12 bits of resolution. In other words, the fewest photons it can sense is 100, but anything between 100 and 200 (actually 300?) will read as 0x0001. The most that it can read before clipping is 819200 photons, but it reads that os 0x0FFF (4095). Meanwhile a 14 bit A/D with 13bits of dynamic range would read 100 photons as 0x0002, and 819200 photons as 0x3FFF (16,383), or it would have a resolution of 50 photos per bit of least resolution. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
on 2012-05-23 8:15 Rick Womer wrote The difference in detail between the 12 and 14-bit images is far from minimal. - Original Message - From: David Parsonsparsons.da...@gmail.com In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit.html i concur with Rick – the link you sent, David, shows the highlights to be similar, but there's a very substantial difference in the shadow detail; that would mean a lot to me in practical terms of course it's not the same system, but the dxomark ratings and anecdotal evidence seem to support the same conclusion for the Sony sensor used by Pentax -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. Rick http://photo.net/photos/RickW - Original Message - From: William Robb anotherdrunken...@gmail.com To: Pentax-Discuss Mail List pdml@pdml.net Cc: Sent: Monday, May 21, 2012 11:40 PM Subject: Re: K-30 vs K-5 On 21/05/2012 5:15 PM, J.C. O'Connell wrote: seems pretty close The big difference will be the K5's build quality. Performance wise, probably not much to say. -- William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
I agree with Rick! Cheers, Christine On May 22, 2012, at 12:31 PM, Rick Womer wrote: I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. Rick http://photo.net/photos/RickW - Original Message - From: William Robb anotherdrunken...@gmail.com To: Pentax-Discuss Mail List pdml@pdml.net Cc: Sent: Monday, May 21, 2012 11:40 PM Subject: Re: K-30 vs K-5 On 21/05/2012 5:15 PM, J.C. O'Connell wrote: seems pretty close The big difference will be the K5's build quality. Performance wise, probably not much to say. -- William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
A good discussion of the difference between 12 bit depth and 14 bit depth. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit.html That the K-30 is only 12 bit depth mostly explains why it is better at higher frame rate work than the 14 bit depth of the K-5. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
Another good article on bit depth. Quote: Not long ago, most cameras functioned in 8-bit mode. Then the higher-end DSLRs became capable of using 12-bit capture. Now they are up to 14-bit, which is a *huge* benefit to photographers. If you don’t understand bit depth, these may sound like incremental improvements. But they are actually *exponential* improvements. (emphasis mine) http://h30507.www3.hp.com/t5/Professional-Photography/Bit-Depth-Basics-More-Than-a-Numbers-Game/ba-p/78441 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
on 2012-05-22 11:31 Rick Womer wrote I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. that concerns me too, but somehow dxomark rates the dynamic range of the K 01 12.9 Evs vs 14.1 Evs for K-5 — just over a stop of difference rather than the two stops that the data path would support, but still a significant difference (it would seem odd that 12 bits can support almost 13 stops of dynamic range; i suspect that some sort of dynamic range compression is used, or that i don't understand dxomark's measurement system) since the K 01 is also 12 bits/channel, one could expect the K-30 to perform similarly -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
On May 22, 2012, at 3:43 PM, steve harley wrote: on 2012-05-22 11:31 Rick Womer wrote I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. that concerns me too, but somehow dxomark rates the dynamic range of the K 01 12.9 Evs vs 14.1 Evs for K-5 — just over a stop of difference rather than the two stops that the data path would support, but still a significant difference (it would seem odd that 12 bits can support almost 13 stops of dynamic range; i suspect that some sort of dynamic range compression is used, or that i don't understand dxomark's measurement system) I think that it can measure 13 stops of dynamic range, but with only 12 bits of resolution. In other words, the fewest photons it can sense is 100, but anything between 100 and 200 (actually 300?) will read as 0x0001. The most that it can read before clipping is 819200 photons, but it reads that os 0x0FFF (4095). Meanwhile a 14 bit A/D with 13bits of dynamic range would read 100 photons as 0x0002, and 819200 photons as 0x3FFF (16,383), or it would have a resolution of 50 photos per bit of least resolution. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
- Original Message - From: Larry Colen l...@red4est.com To: Pentax-Discuss Mail List pdml@pdml.net Cc: Sent: Tuesday, May 22, 2012 8:20 PM Subject: Re: K-30 vs K-5 On May 22, 2012, at 3:43 PM, steve harley wrote: on 2012-05-22 11:31 Rick Womer wrote I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. that concerns me too, but somehow dxomark rates the dynamic range of the K 01 12.9 Evs vs 14.1 Evs for K-5 — just over a stop of difference rather than the two stops that the data path would support, but still a significant difference (it would seem odd that 12 bits can support almost 13 stops of dynamic range; i suspect that some sort of dynamic range compression is used, or that i don't understand dxomark's measurement system) I think that it can measure 13 stops of dynamic range, but with only 12 bits of resolution. In other words, the fewest photons it can sense is 100, but anything between 100 and 200 (actually 300?) will read as 0x0001. The most that it can read before clipping is 819200 photons, but it reads that os 0x0FFF (4095). Meanwhile a 14 bit A/D with 13bits of dynamic range would read 100 photons as 0x0002, and 819200 photons as 0x3FFF (16,383), or it would have a resolution of 50 photos per bit of least resolution. -- Larry Colen l...@red4est.com sent from i4est Uhhh...yeahwhatever. Rick -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit.html Bit depth does not equal stops of DR. On Tue, May 22, 2012 at 8:20 PM, Larry Colen l...@red4est.com wrote: On May 22, 2012, at 3:43 PM, steve harley wrote: on 2012-05-22 11:31 Rick Womer wrote I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. that concerns me too, but somehow dxomark rates the dynamic range of the K 01 12.9 Evs vs 14.1 Evs for K-5 — just over a stop of difference rather than the two stops that the data path would support, but still a significant difference (it would seem odd that 12 bits can support almost 13 stops of dynamic range; i suspect that some sort of dynamic range compression is used, or that i don't understand dxomark's measurement system) I think that it can measure 13 stops of dynamic range, but with only 12 bits of resolution. In other words, the fewest photons it can sense is 100, but anything between 100 and 200 (actually 300?) will read as 0x0001. The most that it can read before clipping is 819200 photons, but it reads that os 0x0FFF (4095). Meanwhile a 14 bit A/D with 13bits of dynamic range would read 100 photons as 0x0002, and 819200 photons as 0x3FFF (16,383), or it would have a resolution of 50 photos per bit of least resolution. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: K-30 vs K-5
Bit depth does not equal stops of DR. I second that. - J.C.O'Connell hifis...@gate.net - -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of David Parsons Sent: Tuesday, May 22, 2012 10:17 PM To: Pentax-Discuss Mail List Subject: Re: K-30 vs K-5 In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit. html Bit depth does not equal stops of DR. On Tue, May 22, 2012 at 8:20 PM, Larry Colen l...@red4est.com wrote: On May 22, 2012, at 3:43 PM, steve harley wrote: on 2012-05-22 11:31 Rick Womer wrote I think another big difference will be the 12 v. 14 bit/channel RAW--I suspect those extra bits in the K-5 are where the great DR lives. that concerns me too, but somehow dxomark rates the dynamic range of the K 01 12.9 Evs vs 14.1 Evs for K-5 just over a stop of difference rather than the two stops that the data path would support, but still a significant difference (it would seem odd that 12 bits can support almost 13 stops of dynamic range; i suspect that some sort of dynamic range compression is used, or that i don't understand dxomark's measurement system) I think that it can measure 13 stops of dynamic range, but with only 12 bits of resolution. In other words, the fewest photons it can sense is 100, but anything between 100 and 200 (actually 300?) will read as 0x0001. The most that it can read before clipping is 819200 photons, but it reads that os 0x0FFF (4095). Meanwhile a 14 bit A/D with 13bits of dynamic range would read 100 photons as 0x0002, and 819200 photons as 0x3FFF (16,383), or it would have a resolution of 50 photos per bit of least resolution. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
On 22 May 2012 22:17, David Parsons parsons.da...@gmail.com wrote: In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit.html Bit depth does not equal stops of DR. Bit depth does not equal captured stops of DR, but sets an upper limit on the stops of DR stored as data in the file. —M. \/\/o/\/\ -- http://WorldOfMiserere.com http://EnticingTheLight.com A Quest for Photographic Enlightenment -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
Miserere wrote: On 22 May 2012 22:17, David Parsons parsons.da...@gmail.com wrote: In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit.html Bit depth does not equal stops of DR. Bit depth does not equal captured stops of DR, but sets an upper limit on the stops of DR stored as data in the file. Concise and perfect. (I was trying to work out how to say that without generating a massive long paragraph doing so!) -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: K-30 vs K-5
Bit depth does not equal captured stops of DR, but sets an upper limit on the stops of DR stored as data in the file. Only if linear coding is employed. DR in stops is not inherently limited by bit depth, only the number of shades of gray is. - J.C.O'Connell hifis...@gate.net - -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Miserere Sent: Tuesday, May 22, 2012 11:04 PM To: Pentax-Discuss Mail List Subject: Re: K-30 vs K-5 On 22 May 2012 22:17, David Parsons parsons.da...@gmail.com wrote: In practice the difference is minimal. http://www.earthboundlight.com/phototips/nikon-d300-d3-14-bit-versus-12-bit. html Bit depth does not equal stops of DR. Bit depth does not equal captured stops of DR, but sets an upper limit on the stops of DR stored as data in the file. -M. \/\/o/\/\ -- http://WorldOfMiserere.com http://EnticingTheLight.com A Quest for Photographic Enlightenment -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
K-30 vs K-5
whats the difference between the k30 and the k5? is it the same better or worse and in what respects? - J.C.O'Connell hifis...@gate.net - -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
I just posted a quick comparison in the Official announcement thread. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: K-30 vs K-5
seems pretty close - J.C.O'Connell hifis...@gate.net - -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Darren Addy Sent: Monday, May 21, 2012 6:40 PM To: Pentax-Discuss Mail List Subject: Re: K-30 vs K-5 I just posted a quick comparison in the Official announcement thread. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-30 vs K-5
On 21/05/2012 5:15 PM, J.C. O'Connell wrote: seems pretty close The big difference will be the K5's build quality. Performance wise, probably not much to say. -- William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
