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the sx20 porting thread

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Offline OskarDaimon

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Re: the sx20 porting thread
« Reply #1090 on: 28 / January / 2011, 08:30:47 »
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Thks to evrybody. I use outdated information. Ok now i test it...
Save in DNG format turn on but doesnt work, 'DNG' file extention turn but doesnt work, but when  both parameters are on i have dng picture which i can open in photoshop... Strange but crw and dng files have the same size Its normal?...
« Last Edit: 28 / January / 2011, 09:28:32 by OskarDaimon »
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Offline reyalp

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Re: the sx20 porting thread
« Reply #1091 on: 28 / January / 2011, 12:24:32 »
Quote from: wowsers51 on 28 / January / 2011, 04:58:34
Hmmm. Another one. I really wonder if something will be done about this.
It's unlikely to be resolved unless someone who is actually affected by the problem is able to debug it. It's possible that someone without the camera will figure out the problem and fix it, but far less likely.
Quote from: OskarDaimon on 28 / January / 2011, 08:30:47
Thks to evrybody. I use outdated information. Ok now i test it...
Save in DNG format turn on but doesnt work, 'DNG' file extention turn but doesnt work, but when  both parameters are on i have dng picture which i can open in photoshop... Strange but crw and dng files have the same size Its normal?...
The *extension* has nothing to do with the file *format*. If you choose DNG format, the file will be saved in DNG format no matter what extension you choose. If you choose DNG extension, DNG format files will be saved with a .DNG extension. Non-DNG raws will never be saved with DNG extension.

Non-DNG raws (typically saved with a .CRW extension, but not actually in canons CRW format or any other well specified format) will be slightly smaller than DNG format files.
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Offline OskarDaimon

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Re: the sx20 porting thread
« Reply #1092 on: 28 / January / 2011, 13:40:36 »
Thanks. And? I understand it.  And if raw size is differ  dng in my case the same size means that this functions are not work(  Have any ideas? I set dng format only- no results -and it saves in raw; i set 'DNG' file extention -no results-the extension is .raw. I set both of them and changes only extension- .dng... ;)
« Last Edit: 28 / January / 2011, 13:46:24 by OskarDaimon »
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Offline SkyWalker9

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Re: the sx20 porting thread
« Reply #1093 on: 28 / January / 2011, 15:13:40 »
Quote from: OskarDaimon on 28 / January / 2011, 13:40:36
Thanks. And? I understand it.  And if raw size is differ  dng in my case the same size means that this functions are not work(  Have any ideas? I set dng format only- no results -and it saves in raw; i set 'DNG' file extention -no results-the extension is .raw. I set both of them and changes only extension- .dng... ;)
I also use an SX20 fw 1.02b. I ran a set test images for someone two days ago and here are what their stats look like:

CRW_1240.DNG   18,255KB
CRW_1241.CRW   18,217KB
CRW_1243.CR2    18,217KB

It appears you may be getting confused on which items to enable on the RAW menu...
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Offline OskarDaimon

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Re: the sx20 porting thread
« Reply #1094 on: 28 / January / 2011, 15:27:25 »
Cool. I think i should reinstall my CHDK and try it again I whant to say that i  have some language barier. And i whant to ask u You also have a latency about 3-4 second instead 1 when u save in dng or raw? And if you say yes - Do u think that it is rightly? instead 4 shots make 1 and instead of for example 1000 shots have 250 on your Sd card? I dont think so...
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Offline SkyWalker9

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Re: the sx20 porting thread
« Reply #1095 on: 28 / January / 2011, 15:31:29 »
« Last Edit: 28 / January / 2011, 15:44:27 by SkyWalker9 »
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Offline OskarDaimon

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Re: the sx20 porting thread
« Reply #1096 on: 28 / January / 2011, 15:44:09 »
Sank u / Ok if i get u when function DNG format is Enable? shot saves in raw but i can rename the extension to dng and itll be like like real dng and both of them i can open forexample in photoshop?
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Offline SkyWalker9

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Re: the sx20 porting thread
« Reply #1097 on: 28 / January / 2011, 15:48:17 »
Quote from: OskarDaimon on 28 / January / 2011, 15:44:09
Sank u / Ok if i get u when function DNG format is Enable? shot saves in raw but i can rename the extension to dng and itll be like like real dng and both of them i can open forexample in photoshop?
If you are asking whether you can just rename the CRW or CR2 files to DNG and then process them as DNGs, the answer is NO. The CHDK CRW & CR2 formats can not be read by PhotoShop CS3 and newer, only CHDK DNGs.
« Last Edit: 28 / January / 2011, 15:49:58 by SkyWalker9 »
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Offline OskarDaimon

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Re: the sx20 porting thread
« Reply #1098 on: 28 / January / 2011, 15:51:20 »
sory.) I am not so stupid) I say not correctly what i what to tell. When function save in DNG format- is Enable it saves in dng but have  crw extension. But we can change the extension to dng with notepad and it will be true dng/ I understand )) I should to translate better))
And what do u say about latensy 4 seconds and shots size? i want to hear :D
« Last Edit: 28 / January / 2011, 16:11:03 by OskarDaimon »
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Offline reyalp

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Re: the sx20 porting thread
« Reply #1099 on: 28 / January / 2011, 16:05:56 »
Quote from: OskarDaimon on 28 / January / 2011, 15:27:25
And i whant to ask u You also have a latency about 3-4 second instead 1 when u save in dng or raw?
Raw takes longer than jpeg, DNG takes longer than normal raw. Make sure you enable "raw buffer chached" if you are using DNG, this will make DNG faster.
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And if you say yes - Do u think that it is rightly? instead 4 shots make 1 and instead of for example 1000 shots have 250 on your Sd card? I dont think so...
It must be this way. raw and DNG are much more data than jpeg, and DNG requires more processing than raw.

edit:
Quote from: OskarDaimon on 28 / January / 2011, 15:51:20
When function save in DNG format- is Enable it saves in dng but have  crw extension. But we can change the extension to dng with notepad and it will be true dng?
As I said before, the extension has absolutely nothing to do with the format of the actual data in the file. If you enable DNG, the the file is a DNG file. You can change the extension to anything you like, but some programs will expect a particular extension for particular format. Some programs look inside the file, and don't care about the extension.
« Last Edit: 28 / January / 2011, 16:13:28 by reyalp »
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